WO2016008078A1 - Control circuit for equalizer, equalizer and optical receiver - Google Patents
Control circuit for equalizer, equalizer and optical receiver Download PDFInfo
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- WO2016008078A1 WO2016008078A1 PCT/CN2014/082170 CN2014082170W WO2016008078A1 WO 2016008078 A1 WO2016008078 A1 WO 2016008078A1 CN 2014082170 W CN2014082170 W CN 2014082170W WO 2016008078 A1 WO2016008078 A1 WO 2016008078A1
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- equalizer
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/60—Receivers
- H04B10/66—Non-coherent receivers, e.g. using direct detection
- H04B10/69—Electrical arrangements in the receiver
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- the present invention relates to the field of communications technologies, and in particular, to a control circuit for an equalizer, Equalizer and optical receiver.
- An equalizer is an electronic device made up of resistors, capacitors, inductors, etc. Optimizing the input signal according to the equalization compensation factor to improve the input signal s speed. Currently, it is generally by manually adjusting the equalization compensation factor or by controlling the voltage. Adjust the size of the resistor, capacitor, inductor, etc. in the equalizer to adjust the frequency of the equalizer. The rate response characteristic is such that the rate of the output signal of the equalizer approaches the target rate.
- Embodiments of the present invention provide an equalizer control circuit, equalizer, and light receiving Machine to solve the prior art equalizer adjustment flexibility, low precision, User experience relies on too high a problem.
- the embodiment of the present invention adopts the following technical solutions:
- a control circuit for an equalizer comprising: an input end, An output end and a control end; the control circuit comprises: a relative ratio acquisition circuit, and a comparison power a road and equalization controller; the relative ratio acquisition circuit and the equalization controller are both included Included: an input end and an output end; the comparison circuit includes: a first input end, a second input End and output;
- An input end of the relative ratio acquisition circuit is connected to an output end of the equalizer
- a second input end of the comparison circuit configured to receive a reference relative ratio
- An output end of the comparison circuit is connected to an input end of the equalization controller
- An output of the equalization controller is configured to output an equalization compensation factor
- An output end of the equalization controller is connected to a control end of the equalizer
- the relative ratio acquisition circuit is configured to acquire an output signal of the equalizer The actual relative ratio of the power of the high frequency signal component to the power of the medium and low frequency signal component, or Obtaining a power of the high frequency signal component in the output signal of the equalizer and the output The actual relative proportion of the power of the signal;
- the comparison circuit is configured to compare the actual relative ratio with the reference For example, the comparison result is obtained;
- the equalization controller is configured to adjust the equalizer according to the comparison result Compensating the compensation factor such that the equalizer follows the adjusted equalization compensation factor pair
- the input signal of the equalizer is frequency compensated.
- the relative ratio is obtained
- the circuit includes: a first filter, a second filter, a first power detector, and a second power a rate detector and a first ratio circuit;
- the first ratio circuit includes: a first input terminal, a second input end and an output end;
- An output of the first filter is coupled to an input of the first power detector Connect
- An output of the second filter is coupled to an input of the second power detector Connect
- An output of the first ratio circuit is coupled to an input of the equalization controller
- the first filter is configured to filter an output signal of the equalizer To high frequency signal components
- the second filter is configured to filter an output signal of the equalizer To the medium and low frequency signal components;
- the first power detector is configured to detect power of the high frequency signal component
- the second power detector is configured to detect power of the low frequency signal component
- the first ratio circuit is configured to acquire a power relative to the high frequency signal component Describe the actual relative ratio of the power of the low frequency signal component, or obtain the low frequency signal The actual relative ratio of the power of the component to the power of the high frequency signal component.
- the first ratio circuit is configured to acquire a power phase of the high frequency signal component Actual relative ratio of power to the medium and low frequency signal components; the equalization controller Body for:
- the first ratio circuit is configured to acquire a power phase of the high frequency signal component Actual relative ratio of power to the medium and low frequency signal components; the equalization controller Body for:
- the first filter and/or the second filter are band pass filters.
- the relative ratio is obtained
- the circuit includes: a third filter, a third power detector, a fourth power detector, and a a ratio circuit comprising: a first input, a second input, and an output end;
- An output of the third filter is coupled to an input of the third power detector Connect
- An output of the second ratio circuit is coupled to an input of the equalization controller
- the third filter is configured to filter an output signal of the equalizer To high frequency signal components
- the third power detector is configured to detect power of the high frequency signal component
- the fourth power detector is configured to detect the work of the output signal of the equalizer rate
- the second ratio circuit is configured to acquire a power relative to the high frequency signal component Describe the actual relative ratio of the power of the output signal, or obtain the power phase of the output signal The actual relative ratio of the power of the high frequency signal component.
- the comparison circuit implemented by digital circuitry or analog circuitry; and/or, the equalization controller passes digital Circuit or analog circuit implementation.
- an equalizer including: an input end, an output end, and a control end;
- the input end is configured to receive an input signal
- the output terminal is configured to output a signal
- the control terminal is configured to receive the adjusted equalization compensation factor of the output of the control circuit
- the control circuit is the first possible implementation of the first aspect, the first aspect Means to a control circuit of any of the equalizers described in the sixth possible embodiment.
- an optical receiver including: a light receiving module ROSA, both a weighing device, a control circuit for controlling the equalizer, and a limiting amplifier LA; wherein
- Control circuit for controlling the equalizer is the first aspect, the first aspect of the first aspect A possible implementation to any of the sixth possible implementations of the equalizer Control circuit
- An input end of the equalizer configured to receive an output signal of the ROSA
- An output of the equalizer is coupled to an input of the LA.
- control circuit can automatically adjust the equalization of the equalizer
- the compensation factor is such that the rate of the output signal of the equalizer approaches the target rate.
- existing technology Compared with the operation, the flexibility and accuracy of the equalizer are improved, and the equalizer is transmitted.
- the incoming signal achieves an optimal equalization compensation effect.
- FIG. 1 is a schematic diagram of a control circuit of an equalizer according to an embodiment of the present invention.
- FIG. 2 is a schematic diagram of another control circuit of an equalizer according to an embodiment of the present invention.
- FIG. 3 is a schematic diagram of another control circuit of an equalizer according to an embodiment of the present invention.
- FIG. 4 is a flow chart of a method for controlling a circuit of an equalizer according to an embodiment of the present invention.
- FIG. 5 is a schematic diagram of another method for controlling a circuit of an equalizer according to an embodiment of the present invention. flow chart;
- FIG. 6 is a schematic structural diagram of an equalizer according to an embodiment of the present disclosure.
- FIG. 7 is a schematic structural diagram of an optical receiver according to an embodiment of the present disclosure.
- FIG. 8 is a schematic front end diagram of a conventional 10G optical receiver according to an embodiment of the present invention. Schematic diagram of the frequency response curve;
- FIG. 9 is a schematic diagram of an analog front end frequency of an optical receiver according to an embodiment of the present invention Schematic diagram of the response curve.
- a control circuit of an equalizer is provided in an embodiment of the present invention.
- the control circuit may include: phase The comparison acquisition circuit 102, the comparison circuit 103, and the equalization controller 104.
- the equalizer 101 includes an input end 101a, an output end 101b, and a control end 101c;
- the relative ratio acquisition circuit 102 includes: an input end 102a and an output end 102b;
- the path 103 includes: a first input end 103a, a second input end 103b, and an output end 103c;
- the equalization controller 104 includes an input 104a and an output 104b.
- the output terminal 101b of the equalizer is connected to the input terminal 102a of the relative ratio acquisition circuit Connected; the relative ratio acquisition circuit output 102b and the first input end 103a of the comparison circuit Connecting; the second input terminal 103b of the comparison circuit is configured to receive the reference relative ratio;
- the output terminal 103c of the device is connected to the input terminal 104a of the equalization controller;
- An equalizer 101 for receiving signals on the input terminal 101a (ie, the equalizer 101) The input signal) is frequency compensated to obtain an output signal; output through the output terminal 101b The output signal.
- equalizer 101 can be the basis of an equalizer in the prior art. Adding an electronic component formed after a control terminal 101c, which is provided in the embodiment of the present invention
- the body implementation circuit is not limited; wherein the control terminal 101c is configured to receive the equalization controller
- the equalization compensation factor of 104 output is not limited; wherein the control terminal 101c is configured to receive the equalization controller
- the equalization compensation factor of 104 output is not limited; wherein the control terminal 101c is configured to receive the equalization controller
- the equalization compensation factor of 104 output The input signal and the output signal of the equalizer 101 are both Analog electrical signal. "Equalizer 101 frequency compensates its input signal to get the output
- the signal may be specifically: the equalizer 101 generates a gain compensation peak according to the equalization compensation factor.
- the equalizer 101 The rate of the output signal approaches the target rate; where, the "equalization compensation factor" It may be a preset compensation factor, or may be the control end of the equalizer 101c.
- the received equalization compensation factor output by the equalization controller 104.
- a relative ratio acquisition circuit 102 for obtaining an output signal of the equalizer 101 The actual relative ratio of the power of the high frequency signal component to the power of the medium and low frequency signal component, or Obtaining the power of the high frequency signal component in the output signal of the equalizer 101 and the output signal The actual relative proportion of the power of the number.
- the actual relative ratio of the power of the high frequency signal component to the power of the medium and low frequency signal component may be: the actual relative ratio of the power of the high frequency signal component to the power of the medium and low frequency signal component, ie (Expressed as: Case 1); or the actual relative ratio of the power of the mid-low frequency signal component to the power of the high frequency signal component, ie (Expressed as: Case 2).
- the actual relative ratio of the power of the high frequency signal component to the power of the output signal may be: the actual relative ratio of the power of the high frequency signal component to the power of the output signal, ie (Expressed as: Case 3); or the actual relative ratio of the power of the output signal to the power of the high frequency signal component, ie (Expressed as: Case 4).
- High frequency signal component and medium and low frequency signal component in the output signal of the equalizer 101 The division is related to the rate of the output signal. For example, when the rate of the output signal is When 10G bits, the corresponding target transmission bandwidth is generally around 7.5GHz (hertz); In this case, the bandwidth of the medium and low frequency signal components can be several hundred MHz to several (such as Any value in 2 to 4) GHz (labeled as F1); the bandwidth occupied by the high-frequency signal component can be Think of any value (such as 4 ⁇ 5) GHz to higher (such as 6 ⁇ 8) GHz (marked as F2). Of course, the division can also be performed in other manners, and the embodiment of the present invention does not Limited.
- Comparison circuit 103 for comparing the actual relative ratio with the reference For example, the comparison result is obtained.
- reference relative scale is used to characterize the output signal of equalizer 101
- the power of the medium and high frequency signal components is proportional to the target of the power of the medium and low frequency signal components, Or the power of the high frequency signal component in the output signal of the equalizer 101 and the output signal The relative proportion of the target of power.
- the received “actual relative ratio” is the power of the high frequency signal component relative to the low frequency signal
- the second input 103b when the actual relative ratio of the power of the component (ie, case 1 above)
- the received “reference relative ratio” is the power of the high frequency signal component relative to the low frequency signal
- the target relative proportion of the power of the component several other cases (ie, cases 2, 3, 4 above)
- the corresponding relationship between "actual relative proportion” and “reference relative ratio” is similar. It is not listed here one by one.
- the "reference relative ratio" can be obtained by setting the equalizer 101 Equalization compensation factor so that equalizer 101 does not frequency compensate its input signal Reimbursing; inputting a signal having a target rate to the input terminal 101a of the equalizer 101,
- the equalizer 101 is controlled by the above control circuit;
- the relative ratio acquisition circuit is The actual relative proportion obtained by 102 is used as a reference relative ratio.
- the acquisition method can be It is executed when the above control circuit is electrically initialized.
- the "reference relative ratio” is also It can be a value set in advance.
- the comparison circuit 103 can be implemented by an analog circuit or a digital circuit. specific:
- the comparison circuit 103 When the comparison circuit 103 is implemented by an analog circuit, its output terminal 103c is based on the pre Set the voltage value to output different voltage values. Specifically, when the first input end 103a receives When the value of the voltage/current is greater than the value of the voltage/current received by the second input terminal 103b, The output terminal 103c outputs a voltage value greater than a preset voltage value; when the first input terminal 103a is connected When the value of the received voltage/current is less than the value of the voltage/current received by the second input terminal 103b, The output terminal 103c outputs a voltage value smaller than the preset voltage value; when the first input terminal 103a The value of the received voltage/current is equal to the value of the voltage/current received by the second input 103b At the time, the output terminal 103c outputs a preset voltage value. And the voltage received by the first input terminal 103a The difference between the value of the /current and the value of the voltage/current received by the second input 103b The larger
- the comparison circuit 103 when the comparison circuit 103 is implemented by an analog circuit, the comparison circuit 103 can be a comparator.
- the comparator compares the current or voltage at the two inputs Size, the electronic component that outputs different voltage results at the output.
- the first input terminal 103a of the comparison circuit is a comparator
- the positive input terminal, the second input terminal 103b of the comparison circuit is the reverse input of the comparator
- the output terminal 103c of the comparison circuit is the output of the comparator.
- the comparison circuit 103 can also be realized by other combinations of various resistors, capacitors, inductors, and the like. The invention is not limited thereto.
- the comparison circuit 103 When the comparison circuit 103 is implemented by a digital circuit, at least two bits of binary can be used. The number indicates the comparison result output by its output terminal 103c; for example, the "11" table can be used. The actual relative ratio is greater than the reference relative ratio, and the actual relative ratio is small with "00". For reference relative proportions, use "10 or 01" to indicate that the actual relative ratio is equal to the reference relative proportion. Of course, a voltage value of three or more digits can also be used to represent a voltage value. The voltage value is the same as the voltage value outputted by the output terminal 103c in the above analog circuit implementation method. The function is similar.
- the equalization controller 104 is configured to adjust the average of the equalizer 101 according to the comparison result.
- the compensation factor is adjusted such that the equalizer 101 equalizes the adjusted equalization compensation factor
- the input signal of the device 101 is frequency compensated.
- the equalization controller 104 can be implemented by an analog circuit or a digital circuit.
- the relative ratio acquisition circuit 102 and the comparison circuit 103 may be used.
- a digital-to-analog converter or an analog converter is provided between the equalizer 101 to implement an analog signal Conversion between digital signals.
- the comparison circuit 103 is implemented by an analog circuit
- the equalization controller 104 is implemented by a digital circuit
- the comparison circuit 103 and the An analog-to-digital converter is provided between the balance controllers 104, and the equalization controller 104 and the A digital to analog converter is provided between the scales 101.
- the equalization controller 104 is specifically configured to perform any of the following actions:
- the first input end 103a of the comparison circuit 103 receives the "real" If the relative ratio is the case of any of the above cases 1, 2, 3, and 4, if the "comparison result" For the actual relative ratio is equal to the reference relative ratio, indicating: the equalization compensation factor at this time can Equilibrium controller is sufficient to make the rate of the output signal of the equalizer 101 meet the target rate 104 does not adjust the equalization compensation factor of the equalizer 101, and always uses the equalization compensation factor The control equalizer 101 frequency compensates the input signal of the equalizer 101.
- the equalization controller 104 is specifically configured to perform any of the following actions:
- the first input end 103a of the comparison circuit 103 receives the "real" If the relative ratio is the case of any of the above cases 1, 2, 3, and 4, if the "comparison result" Within the preset interval, it is stated that the equalization compensation factor at this time enables the equalizer 101
- the rate of the output signal satisfies the target rate, and the equalization controller 104 does not adjust the equalizer
- An equalization compensation factor of 101 and always controls the equalizer 101 with the equalization compensation factor
- the input signal of the equalizer 101 is frequency compensated.
- the "preset interval" here can be based on the output signal of the equalizer.
- the allowable error between the rate and the target rate is determined. It should be noted that, in the above In any case of cases 1, 2, 3, and 4, the actual values of the preset intervals are different.
- the equalization controller 104 can gradually adjust the steps in a stepwise manner. Balance compensation factor. Specifically, each time the current equalization compensation factor is increased or decreased by a fixed Interval, and controlling the equalizer 101 according to the adjusted equalization compensation factor, according to this cycle, Until the comparison result output by the comparison circuit 103 is that the actual relative ratio is equal to the reference relative When the ratio or comparison result is within the preset interval, the equalization compensation factor is no longer adjusted. among them, The specific value of the fixed interval is not limited in the embodiment of the present invention.
- the fetching circuit 102 can include: a first filter 1021, a second filter 1022, and a first Power detector 1023, second power detector 1024, and first ratio circuit 1025.
- the first filter 1021 includes: an input end 1021a and an output end 1021b;
- the filter 1022 includes an input end 1022a and an output end 1022b;
- the device 1023 includes: an input end 1023a and an output end 1023b; and a second power detector 1024
- the input terminal 1024a and the output terminal 1024b include: the first ratio circuit 1025 includes: The first input terminal 1025a, the second input terminal 1025b, and the output terminal 1025c.
- the input end 1021a of the first filter and the input end 1022a of the second filter respectively Connected to the output 101b of the equalizer; the output 1021b of the first filter and the first The input end 1023a of the power detector is connected; the output end of the second filter is 1022b and The input end 1024a of the two power detectors is connected; the output of the first power detector 1023b is coupled to the first input terminal 1025a of the first ratio circuit; the second power detector The output terminal 1024b is connected to the second input terminal 1025b of the first ratio circuit; the first ratio The output terminal 1025c of the value circuit is coupled to the first input terminal 103a of the comparison circuit.
- a first filter 1021 configured to filter an output signal of the equalizer 101, A high frequency signal component is obtained.
- a second filter 1022 configured to filter an output signal of the equalizer 101, Get the medium and low frequency signal components.
- the first power detector 1023 is configured to detect the power of the high frequency signal component.
- the second power detector 1024 is configured to detect the power of the low frequency signal component.
- the first ratio circuit 1025 is configured to obtain a relatively low-to-low power of the high-frequency signal component.
- the actual relative ratio of the power of the frequency signal component, or the power of the low-frequency signal component The actual relative proportion of power relative to the high frequency signal component.
- the embodiment of the present invention applies to the first filter 1021 and the second filter.
- the type of 1022 and the specific implementation circuit are not limited.
- the first filter 1021 The type can be a high pass filter, a band pass filter or a band stop filter; the second filter The type of the device 1022 may be a low pass filter, a band pass filter or a band stop filter or the like.
- the bandwidth occupied by the high frequency signal component and the medium and low frequency signal components can be used. Adjusting parameters of the first filter 1021 and the second filter 1022 to cause the first filtering
- the 1021 outputs a high frequency signal component
- the second filter 1022 outputs a low frequency signal component.
- Power detector (including first power detector 1023, second power detector 1024) is to convert the power of its input signal into a voltage signal or a current signal, and output Specific electronic components of voltage or current values.
- Embodiments of the present invention for power detectors The specific implementation circuit is not limited.
- the first ratio circuit 1025 can be implemented by an analog circuit or a digital circuit. among them, The first ratio circuit 1025 may exist alone or may be integrated in the comparison circuit 103.
- the input end 1021a of the first filter And the input end 1022a of the second filter is the input end of the relative ratio acquisition circuit 102a; the output of the first ratio circuit 1025c is the output of the relative ratio acquisition circuit End 102b.
- the relative proportion The acquisition circuit 102 can include: a third filter 1026, a third power detector 1027, A fourth power detector 1028 and a second ratio circuit 1029.
- the third filter 1026 includes: an input terminal 1026a and an output terminal 1026b;
- the power detector 1027 includes: an input terminal 1027a and an output terminal 1027b; a fourth power
- the detector 1028 includes an input terminal 1028a and an output terminal 1028b, and a second ratio circuit 1029 includes a first input 1029a, a second input 1029b, and an output 1029c.
- Input 1026a of the third filter and input 1028a of the fourth power detector Connected to the output 101b of the equalizer respectively; the output 1026b of the third filter The input end 1027a of the third power detector is connected; the output of the third power detector 1027b is coupled to the first input terminal 1029a of the second ratio circuit; the fourth power detector The output terminal 1028b is connected to the second input terminal 1029b of the second ratio circuit; the second ratio The output terminal 1029c of the value circuit is coupled to the first input terminal 103a of the comparison circuit.
- a third filter 1026 configured to filter an output signal of the equalizer 101, A high frequency signal component is obtained.
- the third power detector 1027 is configured to detect the power of the high frequency signal component.
- a fourth power detector 1028 for detecting the work of the output signal of the equalizer 101 rate.
- a second ratio circuit 1029 for obtaining a power relative output of the high frequency signal component
- the actual relative ratio of the power of the signal, or the power of the output signal relative to the high frequency signal The actual relative proportion of the power of the component.
- the related explanation of the third filter 1026 can refer to the above Explanation of filter 1021.
- Third power detector 1027, fourth power detector 1028 For a related explanation, reference can be made to the above explanation of the power detector.
- the second ratio circuit can be implemented by an analog circuit or a digital circuit. Among them, the second The ratio circuit 1029 may be present separately or integrated in the comparison circuit 103.
- the input end of the third filter 1026a And the input 1028a of the fourth power detector is the input of the relative ratio acquisition circuit The end 102a; the output end 1029c of the second ratio circuit is a relative ratio acquisition circuit Output 102b.
- Embodiments of the present invention provide a control circuit for an equalizer, because the control circuit can Automatically adjust the equalization compensation factor of the equalizer to make the output signal rate of the equalizer Approaching the target rate. Increases the flexibility and precision of the equalizer compared to the prior art The accuracy, in turn, allows the equalizer to achieve an optimal equalization compensation effect on the input signal.
- This embodiment provides a control method of a control circuit based on the equalizer of FIG. 2.
- the above "actual relative ratio” is in this embodiment: the power of the high frequency signal component is relatively The actual relative proportion of the power of the low- and medium-frequency signal components (ie, case 1 above); In the present embodiment, the power of the high frequency signal component is relatively low and medium frequency.
- the target relative ratio of the power of the number component; the above “first filter” is in this embodiment Is: a first band pass filter; the above “second filter” is: second in this embodiment Bandpass filter.
- a method for controlling an equalizer according to this embodiment includes:
- the equalizer performs frequency compensation on the input signal according to the equalization compensation factor, and Output frequency compensated signal.
- the equalization compensation factor may be a preset equalization compensation factor. Or an equalization complement received by the equalization controller received by the equalizer in the previous cycle. Compensation factor.
- the first band pass filter filters the output signal to obtain a high frequency signal. ingredient.
- the first power detector performs power detection on the high frequency signal component to obtain The power of the high frequency signal component.
- the second band pass filter filters the output signal to obtain a medium and low frequency signal. Number composition.
- the second power detector performs power detection on the medium and low frequency signal components. The power to the mid-low frequency signal component.
- steps 402-403 and steps 404-405 may be in no particular order. This embodiment of the present invention does not limit this.
- the first ratio circuit obtains the power of the high frequency signal component relative to the low frequency signal. The actual relative proportion of the power of the component.
- the comparison circuit performs the difference between the actual relative ratio and the reference relative ratio. Count, get the difference.
- the equalization controller determines whether the difference is within a preset interval.
- the equalization compensation factor can make the output signal of the equalizer full.
- the target rate that is, the equalization controller does not need to adjust the equalization compensation factor, then the steps are performed. 412; If no, step 409 is performed.
- the equalization controller determines whether the difference is greater than a maximum value of the preset interval.
- step 410 If yes, go to step 410; if no, go to step 411.
- step 409 can be replaced by the following steps: the equalization controller determines the difference Whether the value is less than the minimum value of the preset interval. If yes, go to step 411; if no, then Go to step 410.
- the equalization controller reduces the equalization compensation factor.
- step 412 is performed.
- the equalization controller increases the equalization compensation factor.
- the equalization controller outputs the adjusted equalization compensation factor to the equalizer, so that The equalizer performs frequency compensation on the input signal according to the adjusted equalization compensation factor. Reimbursement.
- step 401 is performed.
- the compensation factor is the adjusted equalization compensation factor.
- the equalizer control method provided in this embodiment can automatically adjust the equalizer
- the compensation factor is such that the rate of the output signal of the equalizer approaches the target rate. And now Compared with the technology, the flexibility and accuracy of the equalizer are improved, and the equalizer is made. The optimal equalization compensation effect is achieved for the input signal.
- This embodiment provides a control method of a control circuit based on the equalizer of FIG.
- the above "actual relative ratio” is in this embodiment: the power of the high frequency signal component is relatively The actual relative proportion of the power of the output signal (ie, case 3 above); the above reference phase In the present embodiment, the power of the high frequency signal component is relative to the power of the output signal.
- the target relative ratio of the rate; the above-mentioned “third filter” is: the third band in this embodiment Pass filter.
- a method for controlling an equalizer according to this embodiment includes:
- the equalizer performs frequency compensation on the input signal according to the equalization compensation factor, and Output frequency compensated signal.
- the equalization compensation factor is a preset equalization compensation factor or An equalization compensation received by the equalizer controller received by the equalizer in the previous cycle factor.
- the third band pass filter performs a filtering operation on the output signal to obtain a high frequency. Signal component.
- the third power detector performs power detection on the high frequency signal component to obtain The power of the high frequency signal component.
- the fourth power detector performs power detection on the output signal to obtain a signal. Power.
- steps 502-503 and step 504 may be in no particular order.
- the embodiment of the invention does not limit this.
- the second ratio circuit obtains the power of the high frequency signal component relative to the output signal. The actual relative ratio of power.
- the comparison circuit performs the difference between the actual relative ratio and the reference relative ratio. Count, get the difference.
- the equalization controller determines whether the difference is within a preset interval.
- the equalization compensation factor can make the output signal of the equalizer full.
- the target rate that is, the equalization controller does not need to adjust the equalization compensation factor, then the steps are performed. 511; if no, step 508 is performed.
- the equalization controller determines whether the difference is greater than a maximum value of the preset interval.
- step 509 If yes, go to step 509; if no, go to step 510.
- step 508 can also be replaced by the following steps: the equalization controller determines the Whether the difference is less than the minimum value of the preset interval.
- step 510 If yes, go to step 510; if no, go to step 509.
- the equalization controller reduces the equalization compensation factor.
- step 511 is performed.
- the equalization controller increases the equalization compensation factor.
- the equalization controller outputs the adjusted equalization compensation factor to the equalizer, so that The equalizer performs frequency compensation on the input signal according to the adjusted equalization compensation factor. Reimbursement.
- step 501 is performed.
- the compensation factor is the adjusted equalization compensation factor.
- the equalizer control method provided in this embodiment can automatically adjust the equalizer
- the compensation factor is such that the rate of the actual output signal of the equalizer approaches the target rate. Compared with the prior art, the flexibility and accuracy of the equalizer are improved, thereby making both The instrument achieves an optimal equalization compensation effect on the input signal.
- the embodiment of the invention further provides an equalizer, as shown in FIG. 6, the equalizer package
- the input terminal 601, the output terminal 602 and the control terminal 603 are included.
- the input terminal 601 is configured to receive an input signal.
- the output end 602 is configured to output a signal; wherein the output signal is an equalizer according to The equalization compensation factor equalizes the compensated signal.
- the control terminal 603 is configured to receive the adjusted equalization compensation factor of the output of the control circuit child.
- the control circuit is the control circuit of any of the equalizers in the above embodiments.
- the equalizer can also include various resistors, capacitors, inductors, and the like.
- the present invention does not limit the connection between this device and each device.
- the equalizer provided by the embodiment of the present invention includes: an input end, an output end, and a control end. Since the equalizer adds the control terminal, it can receive the equalization compensation automatically adjusted by the control circuit. Factor, so the equalizer can frequency compensate the input signal according to the equalization compensation factor The compensation is such that the rate of the output signal of the equalizer approaches the target rate. With prior art In comparison, the flexibility and accuracy of the equalizer are improved, which in turn causes the equalizer to input the signal. The number achieves the optimal balance compensation effect.
- the present invention is based on the control circuit and equalizer of the equalizer provided by the above embodiments.
- the embodiment also provides an optical receiver, as shown in FIG. 7, the optical receiver includes light receiving Module (Receiver Optical Subassembly, ROSA for short) 701, equalizer 702, Control circuit 703 for controlling the equalizer and limiting amplifier (Limiting Amplifier, Referred to as LA) 704; wherein, ROSA701, equalizer 702, control equalizer control
- the circuits 703 and LA704 may be collectively referred to as an optical receiver analog front end.
- the ROSA 701 includes: an input end and an output end; the equalizer 702 includes: an input end, Output terminal, control terminal; control circuit 703 for controlling equalizer includes: input terminal and output
- the LA704 includes: an input end and an output end.
- An output of the ROSA 701 is coupled to an input of the equalizer 702; an equalizer 702 The output ends are respectively connected to the input of the control circuit 703 of the control equalizer and the LA704 Input terminal connection; control terminal of equalizer 702 and control circuit 703 for controlling equalizer The output is connected.
- ROSA 701 is configured to convert the received optical signal into an electrical signal.
- ROSA701 can be avalanche photodiode (Avalanche Photodiode, abbreviated APD) and Trans-impedance Amplifier (TIA).
- APD Avalanche Photodiode
- TIA Trans-impedance Amplifier
- the equalizer 702 is configured to generate a gain compensation peak according to the equalization compensation factor, and input the The signal is frequency compensated to obtain an output signal.
- Control circuit 703 for controlling the equalizer for outputting the adjusted equalization compensation factor a control circuit for controlling the equalizer (hereinafter simply referred to as "control circuit") 703 It may be the control circuit of any of the above embodiments.
- the equalizer 702 Since the equalizer 702 has a control terminal, the output of the control circuit 703 can be received.
- the input signal of the equalizer 702 is frequency compensated such that the output signal of the equalizer 702
- the rate approaches the target rate, thereby increasing the rate of the output signal of the ROSA 701, That is to increase the bandwidth of the ROSA701. In other words, you can take advantage of low bandwidth ROSA,
- the combination of equalizer and control circuitry increases the bandwidth of low-bandwidth ROSA, at or near High bandwidth ROSA bandwidth.
- the following uses a ROSA with a transmission rate of 2.5 Gbits (referred to as 2.5G ROSA).
- the combination of the equalizer and the control circuit achieves or approaches a transmission rate of 10 Gbits.
- the bandwidth of ROSA (referred to as 10G ROSA) is taken as an example to illustrate the use of low bandwidth ROSA,
- the combination of the equalizer and the control circuit reaches or approaches the original bandwidth of the high bandwidth ROSA Reason:
- the bandwidth of 10G ROSA is generally any value from 7 to 8 GHz, using 10G.
- Optical receiver composed of ROSA with a transmission rate of 10G bits (referred to as 10G optical reception)
- the frequency response curve of the analog front end of the machine is shown in Fig. 8.
- the frequency response curve Reflects the frequency response characteristics;
- the abscissa in Figure 8 represents the input signal of 10G ROSA Frequency F, in Hertz (HZ); ordinate indicates the output of 10G ROSA
- the level V of the number is in decibels (dB).
- 2.5G ROSA bandwidth is generally any value from 2 to 4GHz, 2.5G ROSA
- the frequency response curve is shown in (1) of Fig. 9.
- the equalizer is output according to the control circuit
- the equalization compensation factor adjusts the frequency response curve of the equalizer; when the frequency response of the equalizer
- the line is shown in Figure 2 (2), using 2.5G ROSA, equalizer and control circuit
- the frequency response curve of the analog front end of the combined optical receiver is shown in Fig. 9 (3).
- the response curves are the same or close, that is, the bandwidth of the combination can be reached or close 10G ROSA bandwidth.
- the optical receiver provided by the embodiment of the present invention can utilize low bandwidth
- the combination of ROSA, equalizer and control circuit reaches or approaches the band of high bandwidth ROSA Wide, so the performance of the optical receiver can reach the optical connection consisting of high bandwidth ROSA The performance of the receiver. Due to the combination of low bandwidth ROSA, equalizer and control circuitry This is lower than the cost of high bandwidth ROSA, so it uses high bandwidth compared to the prior art.
- the optical receiver composed of the ROSA can save the optical receiver provided by the embodiment of the invention. this.
- the disclosed system The apparatus and method can be implemented in other ways.
- the device described above The embodiment is merely illustrative, for example, the division of the unit is only one logic Functional division, there may be additional divisions in actual implementation, such as multiple units or groups Pieces can be combined or integrated into another system, or some features can be ignored, or Not executed.
- Another point, the mutual coupling or direct coupling or communication shown or discussed A letter connection can be an indirect coupling or communication connection through some interface, device or unit. It can be electrical, mechanical or other form.
- the unit described as a separate component may or may not be physically Separate, the components displayed as units may or may not be physical units, ie It can be located in one place or it can be distributed to multiple network units. Can be based on Actually, some or all of the units need to be selected to implement the solution of the embodiment. purpose.
- each functional unit in various embodiments of the present invention can be integrated in one place In the unit, it may be that each unit is physically included, or two or two The upper unit is integrated in one unit.
- the above integrated unit can be in the form of hardware Implementation can also be implemented in the form of hardware plus software functional units.
- connection may be indirectly connected, It can mean that the unit or component is directly connected by a wire, or can be represented by His modules or components are connected.
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Abstract
Disclosed are a control circuit for an equalizer, the equalizer and an optical receiver, which aim to solve the problems of the equalizers in the prior art such as poor flexibility, low accuracy and high dependency upon user experience. The control circuit comprises: a relative proportion acquisition circuit (102), a comparison circuit (103) and an equalization controller (104); the relative proportion acquisition circuit is used for acquiring and outputting an actual relative proportion; the input end (102a) of the relative proportion acquisition circuit is connected with an output end (101b) of the equalizer, and an output end (102b) is connected with a first input end (103b) of the comparison circuit. The comparison circuit (103) is used for comparing the actual relative proportion with a reference relative proportion and outputting the result of comparison therebetween; a second input end (103b) of the comparison circuit (103) is used for receiving the reference relative proportion, and an output end (103c) is connected with an input end (104a) of the equalization controller. The equalization controller (104) is used for outputting an equalization compensating factor so that the equalizer (101) performs frequency compensation on an input signal of the input end (101a) of the equalizer in accordance with the adjusted equalization compensating factor; and an output end (104b) of the equalization controller (104) is connected with a control end (101c) of the equalizer. The control circuit is applicable to the technical field of communications.
Description
本发明涉及通信技术领域，尤其涉及一种均衡器的控制电路、
均衡器和光接收机。
The present invention relates to the field of communications technologies, and in particular, to a control circuit for an equalizer,
Equalizer and optical receiver.
均衡器是一种由电阻、电容、电感等器件构成的电子设备，用
于根据均衡补偿因子对输入信号进行频率补偿，从而提高输入信号
的速率。目前，一般通过手动调整均衡补偿因子或通过控制电压来
调整均衡器中的电阻、电容、电感等的大小，从而调整均衡器的频
率响应特性，以使均衡器的输出信号的速率趋近于目标速率。
An equalizer is an electronic device made up of resistors, capacitors, inductors, etc.
Optimizing the input signal according to the equalization compensation factor to improve the input signal
s speed. Currently, it is generally by manually adjusting the equalization compensation factor or by controlling the voltage.
Adjust the size of the resistor, capacitor, inductor, etc. in the equalizer to adjust the frequency of the equalizer
The rate response characteristic is such that the rate of the output signal of the equalizer approaches the target rate.
由于上述调整均衡器的频率响应特性的方法与用户的经验紧
密相关；因此，经验不足的用户一般很难在短时间内使均衡器的输
出信号的速率趋近于目标速率，且调节的灵活性差、精确度低。
Due to the above method of adjusting the frequency response characteristics of the equalizer and the user's experience
Close correlation; therefore, inexperienced users are generally difficult to make the equalizer lose in a short time
The rate of the outgoing signal approaches the target rate, and the adjustment flexibility is poor and the accuracy is low.
发明内容
Summary of the invention
本发明的实施例提供一种均衡器的控制电路、均衡器和光接收
机，用以解决现有技术中均衡器调节的灵活性较差、精确度低、对
用户经验依赖过高的问题。
Embodiments of the present invention provide an equalizer control circuit, equalizer, and light receiving
Machine to solve the prior art equalizer adjustment flexibility, low precision,
User experience relies on too high a problem.
为解决上述技术问题，本发明的实施例采用如下技术方案：
In order to solve the above technical problem, the embodiment of the present invention adopts the following technical solutions:
第一方面，提供一种均衡器的控制电路，均衡器包括：输入端、
输出端和控制端；所述控制电路包括：相对比例获取电路、比较电
路和均衡控制器；所述相对比例获取电路与所述均衡控制器均包
括：输入端和输出端；所述比较电路包括：第一输入端，第二输入
端和输出端；
In a first aspect, a control circuit for an equalizer is provided, the equalizer comprising: an input end,
An output end and a control end; the control circuit comprises: a relative ratio acquisition circuit, and a comparison power
a road and equalization controller; the relative ratio acquisition circuit and the equalization controller are both included
Included: an input end and an output end; the comparison circuit includes: a first input end, a second input
End and output;
所述相对比例获取电路的输入端与所述均衡器的输出端连接；
An input end of the relative ratio acquisition circuit is connected to an output end of the equalizer;
所述相对比例获取电路的输出端与所述比较电路的第一输入
端连接；
An output of the relative ratio acquisition circuit and a first input of the comparison circuit
End connection
所述比较电路的第二输入端，用于接收参考相对比例；
a second input end of the comparison circuit, configured to receive a reference relative ratio;
所述比较电路的输出端与所述均衡控制器的输入端连接；
An output end of the comparison circuit is connected to an input end of the equalization controller;
所述均衡控制器的输出端，用于输出均衡补偿因子；
An output of the equalization controller is configured to output an equalization compensation factor;
所述均衡控制器的输出端与所述均衡器的控制端连接；
An output end of the equalization controller is connected to a control end of the equalizer;
所述相对比例获取电路，用于获取所述均衡器的输出信号中的
高频信号成分的功率与中低频信号成分的功率的实际相对比例，或
获取所述均衡器的输出信号中的高频信号成分的功率与所述输出
信号的功率的实际相对比例；
The relative ratio acquisition circuit is configured to acquire an output signal of the equalizer
The actual relative ratio of the power of the high frequency signal component to the power of the medium and low frequency signal component, or
Obtaining a power of the high frequency signal component in the output signal of the equalizer and the output
The actual relative proportion of the power of the signal;
所述比较电路，用于比较所述实际相对比例与所述参考相对比
例，得到比较结果；
The comparison circuit is configured to compare the actual relative ratio with the reference
For example, the comparison result is obtained;
所述均衡控制器，用于根据所述比较结果调节所述均衡器的均
衡补偿因子，以使得所述均衡器按照所述调节后的均衡补偿因子对
所述均衡器的输入信号进行频率补偿。
The equalization controller is configured to adjust the equalizer according to the comparison result
Compensating the compensation factor such that the equalizer follows the adjusted equalization compensation factor pair
The input signal of the equalizer is frequency compensated.
结合第一方面，在第一种可能的实施方式中，所述相对比例获
取电路包括：第一滤波器、第二滤波器、第一功率探测器、第二功
率探测器和第一比值电路；所述第一比值电路包括：第一输入端、
第二输入端和输出端；
In conjunction with the first aspect, in a first possible implementation, the relative ratio is obtained
The circuit includes: a first filter, a second filter, a first power detector, and a second power
a rate detector and a first ratio circuit; the first ratio circuit includes: a first input terminal,
a second input end and an output end;
所述第一滤波器的输入端、所述第二滤波器的输入端分别与所
述均衡器的输出端连接；
An input end of the first filter and an input end of the second filter respectively
Connecting the output of the equalizer;
所述第一滤波器的输出端与所述第一功率探测器的输入端连
接；
An output of the first filter is coupled to an input of the first power detector
Connect
所述第二滤波器的输出端与所述第二功率探测器的输入端连
接；
An output of the second filter is coupled to an input of the second power detector
Connect
所述第一功率探测器的输出端与所述比较电路的第一输入端
连接；所述第二功率探测器的输出端与所述比较电路的第二输入端
连接；
An output of the first power detector and a first input of the comparison circuit
Connecting; the output of the second power detector and the second input of the comparison circuit
connection;
所述第一比值电路的输出端与所述均衡控制器的输入端连接；
An output of the first ratio circuit is coupled to an input of the equalization controller;
所述第一滤波器，用于对所述均衡器的输出信号进行滤波，得
到高频信号成分；
The first filter is configured to filter an output signal of the equalizer
To high frequency signal components;
所述第二滤波器，用于对所述均衡器的输出信号进行滤波，得
到中低频信号成分；
The second filter is configured to filter an output signal of the equalizer
To the medium and low frequency signal components;
所述第一功率探测器，用于检测所述高频信号成分的功率；
The first power detector is configured to detect power of the high frequency signal component;
所述第二功率探测器，用于检测所述低频信号成分的功率；
The second power detector is configured to detect power of the low frequency signal component;
所述第一比值电路，用于获取所述高频信号成分的功率相对所
述中低频信号成分的功率的实际相对比例，或获取所述中低频信号
成分的功率相对所述高频信号成分的功率的实际相对比例。
The first ratio circuit is configured to acquire a power relative to the high frequency signal component
Describe the actual relative ratio of the power of the low frequency signal component, or obtain the low frequency signal
The actual relative ratio of the power of the component to the power of the high frequency signal component.
结合第一方面的第一种可能的实施方式，在第二种可能的实施
方式中，所述第一比值电路，用于获取所述高频信号成分的功率相
对所述中低频信号成分的功率的实际相对比例；所述均衡控制器具
体用于：
In conjunction with the first possible implementation of the first aspect, in a second possible implementation
In the mode, the first ratio circuit is configured to acquire a power phase of the high frequency signal component
Actual relative ratio of power to the medium and low frequency signal components; the equalization controller
Body for:
当所述比较结果为所述实际相对比例大于参考相对比例时，减
小所述均衡器的均衡补偿因子；或，
When the comparison result is that the actual relative ratio is greater than the reference relative ratio,
Small equalization compensation factor of the equalizer; or
当所述比较结果为所述实际相对比例小于参考相对比例时，增
大所述均衡器的均衡补偿因子。
When the comparison result is that the actual relative ratio is less than the reference relative ratio, increase
The equalization compensation factor of the equalizer.
结合第一方面的第一种可能的实施方式，在第三种可能的实施
方式中，所述第一比值电路，用于获取所述高频信号成分的功率相
对所述中低频信号成分的功率的实际相对比例；所述均衡控制器具
体用于：
In conjunction with the first possible implementation of the first aspect, in a third possible implementation
In the mode, the first ratio circuit is configured to acquire a power phase of the high frequency signal component
Actual relative ratio of power to the medium and low frequency signal components; the equalization controller
Body for:
当所述比较结果大于预设区间的最大值时，减小所述均衡控制
器输出的均衡补偿因子；或，
Decreasing the equalization control when the comparison result is greater than a maximum value of the preset interval
Equilibrium compensation factor for the output of the device; or,
当所述比较结果小于预设区间的最小值时，增大所述均衡控制
器输出的均衡补偿因子。
Increasing the equalization control when the comparison result is less than the minimum value of the preset interval
The equalization compensation factor of the output of the device.
结合第一方面的第一种可能的实施方式，在第四种可能的实施
方式中，所述第一滤波器和/或所述第二滤波器为带通滤波器。
In conjunction with the first possible implementation of the first aspect, in a fourth possible implementation
In the mode, the first filter and/or the second filter are band pass filters.
结合第一方面，在第五种可能的实施方式中，所述相对比例获
取电路包括：第三滤波器、第三功率探测器、第四功率探测器和第
二比值电路；所述比值电路包括：第一输入端、第二输入端和输出
端；
In conjunction with the first aspect, in a fifth possible implementation, the relative ratio is obtained
The circuit includes: a third filter, a third power detector, a fourth power detector, and a
a ratio circuit comprising: a first input, a second input, and an output
end;
所述第三滤波器的输入端、所述第四功率探测器的输入端分别
与所述均衡器的输出端连接；
An input end of the third filter and an input end of the fourth power detector respectively
Connected to the output of the equalizer;
所述第三滤波器的输出端与所述第三功率探测器的输入端连
接；
An output of the third filter is coupled to an input of the third power detector
Connect
所述第三功率探测器的输出端与所述比较电路的第一输入端
连接；所述第四功率探测器的输出端与所述比较电路的第二输入端
连接；
An output of the third power detector and a first input of the comparison circuit
Connecting; the output of the fourth power detector and the second input of the comparison circuit
connection;
所述第二比值电路的输出端与所述均衡控制器的输入端连接；
An output of the second ratio circuit is coupled to an input of the equalization controller;
所述第三滤波器，用于对所述均衡器的输出信号进行滤波，得
到高频信号成分；
The third filter is configured to filter an output signal of the equalizer
To high frequency signal components;
所述第三功率探测器，用于检测所述高频信号成分的功率；
The third power detector is configured to detect power of the high frequency signal component;
所述第四功率探测器，用于检测所述均衡器的输出信号的功
率；
The fourth power detector is configured to detect the work of the output signal of the equalizer
rate;
所述第二比值电路，用于获取所述高频信号成分的功率相对所
述输出信号的功率的实际相对比例，或获取所述输出信号的功率相
对所述高频信号成分的功率的实际相对比例。
The second ratio circuit is configured to acquire a power relative to the high frequency signal component
Describe the actual relative ratio of the power of the output signal, or obtain the power phase of the output signal
The actual relative ratio of the power of the high frequency signal component.
结合第一方面、第一方面的第一种可能的实施方式至第五种可
能的实施方式任一种，在第六种可能的实施方式中，所述比较电路
通过数字电路或模拟电路实现；和/或，所述均衡控制器通过数字
电路或模拟电路实现。
Combining the first aspect, the first possible embodiment to the fifth aspect of the first aspect
Any one of the possible implementation manners. In a sixth possible implementation manner, the comparison circuit
Implemented by digital circuitry or analog circuitry; and/or, the equalization controller passes digital
Circuit or analog circuit implementation.
第二方面，提供一种均衡器，包括：输入端、输出端和控制端；
In a second aspect, an equalizer is provided, including: an input end, an output end, and a control end;
所述输入端，用于接收输入信号；
The input end is configured to receive an input signal;
所述输出端，用于输出信号；
The output terminal is configured to output a signal;
所述控制端，用于接收控制电路输出的调节后的均衡补偿因
子；所述控制电路为上述第一方面、第一方面的第一种可能的实施
方式至第六种可能的实施方式任一种所述的均衡器的控制电路。
The control terminal is configured to receive the adjusted equalization compensation factor of the output of the control circuit
The control circuit is the first possible implementation of the first aspect, the first aspect
Means to a control circuit of any of the equalizers described in the sixth possible embodiment.
第三方面，提供一种光接收机，包括：光接收模块ROSA、均
衡器、控制所述均衡器的控制电路，以及限幅放大器LA；其中，
In a third aspect, an optical receiver is provided, including: a light receiving module ROSA, both
a weighing device, a control circuit for controlling the equalizer, and a limiting amplifier LA; wherein
控制所述均衡器的控制电路为上述第一方面、第一方面的第一
种可能的实施方式至第六种可能的实施方式任一种所述的均衡器
的控制电路；
Control circuit for controlling the equalizer is the first aspect, the first aspect of the first aspect
A possible implementation to any of the sixth possible implementations of the equalizer
Control circuit
所述均衡器的输入端，用于接收所述ROSA的输出信号；
An input end of the equalizer, configured to receive an output signal of the ROSA;
所述均衡器的输出端与所述LA的输入端连接。
An output of the equalizer is coupled to an input of the LA.
上述技术方案中，由于控制电路可以自动调节均衡器的均衡补
偿因子，使得均衡器的输出信号的速率趋近于目标速率。与现有技
术中相比，提高了均衡器的灵活性和精确度，进而使得均衡器对输
入信号达到最优的均衡补偿效果。
In the above technical solution, since the control circuit can automatically adjust the equalization of the equalizer
The compensation factor is such that the rate of the output signal of the equalizer approaches the target rate. And existing technology
Compared with the operation, the flexibility and accuracy of the equalizer are improved, and the equalizer is transmitted.
The incoming signal achieves an optimal equalization compensation effect.
为了更清楚地说明本发明实施例或现有技术中的技术方案，下
面将对实施例或现有技术描述中所需要使用的附图作简单地介绍，
显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于
本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以
根据这些附图获得其他的附图。
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art,
The drawings used in the embodiments or the description of the prior art will be briefly introduced.
Obviously, the drawings in the following description are only some embodiments of the invention, for
Those skilled in the art can also do without creative work.
Other figures are obtained from these figures.
图1为本发明实施例提供的一种均衡器的控制电路的示意图；
1 is a schematic diagram of a control circuit of an equalizer according to an embodiment of the present invention;
图2为本发明实施例提供的另一种均衡器的控制电路的示意
图；
FIG. 2 is a schematic diagram of another control circuit of an equalizer according to an embodiment of the present invention;
Figure
图3为本发明实施例提供的另一种均衡器的控制电路的示意
图；
FIG. 3 is a schematic diagram of another control circuit of an equalizer according to an embodiment of the present invention;
Figure
图4为本发明实施例提供的一种均衡器的控制电路的方法流
程图；
FIG. 4 is a flow chart of a method for controlling a circuit of an equalizer according to an embodiment of the present invention;
Cheng Tu
图5为本发明实施例提供的另一种均衡器的控制电路的方法
流程图；
FIG. 5 is a schematic diagram of another method for controlling a circuit of an equalizer according to an embodiment of the present invention;
flow chart;
图6为本发明实施例提供的一种均衡器的结构示意图；
FIG. 6 is a schematic structural diagram of an equalizer according to an embodiment of the present disclosure;
图7为本发明实施例提供的一种光接收机的结构示意图；
FIG. 7 is a schematic structural diagram of an optical receiver according to an embodiment of the present disclosure;
图8为本发明实施例提供的现有10G光接收机的模拟前端的
频率响应曲线示意图；
FIG. 8 is a schematic front end diagram of a conventional 10G optical receiver according to an embodiment of the present invention;
Schematic diagram of the frequency response curve;
图9为本发明实施例提供的一种光接收机的模拟前端的频率
响应曲线示意图。
FIG. 9 is a schematic diagram of an analog front end frequency of an optical receiver according to an embodiment of the present invention
Schematic diagram of the response curve.
下面将结合本发明实施例中的附图，对本发明实施例中的技术
方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本发明
一部分实施例，而不是全部的实施例。基于本发明中的实施例，本
领域普通技术人员在没有作出创造性劳动前提下所获得的所有其
他实施例，都属于本发明保护的范围。
The technology in the embodiment of the present invention will be described below with reference to the accompanying drawings in the embodiments of the present invention.
The present invention is clearly and completely described, and it is obvious that the described embodiments are merely the present invention.
Some embodiments, but not all of the embodiments. Based on an embodiment of the present invention, this
All of the knowledge obtained by a person of ordinary skill in the art without creative work
The embodiments thereof are all within the scope of protection of the present invention.
本文中术语“和/或”，仅仅是一种描述关联对象的关联关系，
表示可以存在三种关系，例如，A和/或B，可以表示：单独存在A，
同时存在A和B，单独存在B这三种情况。本文中字符“/”，一般
表示前后关联对象是一种“或”的关系。另外，本文中的术语“多
个”是指两个或两个以上。
The term "and/or" in this context is merely an association describing the associated objects.
Indicates that there can be three relationships, for example, A and / or B, which can mean: A exists separately.
There are three cases of A and B, and B alone. The character "/" in this article is generally
Indicates that the contextual object is an "or" relationship. In addition, the term "multiple" in this article
"" means two or more.
如图1所示，为本发明实施例提供的一种均衡器的控制电路的
示意图，用以实现对均衡器101的控制，该控制电路可以包括：相
对比例获取电路102、比较电路103和均衡控制器104。
As shown in FIG. 1 , a control circuit of an equalizer is provided in an embodiment of the present invention.
Schematic diagram for implementing control of the equalizer 101, the control circuit may include: phase
The comparison acquisition circuit 102, the comparison circuit 103, and the equalization controller 104.
均衡器101包括：输入端101a、输出端101b和控制端101c；
相对比例获取电路102包括：输入端102a和输出端102b；比较电
路103包括：第一输入端103a、第二输入端103b和输出端103c；
均衡控制器104包括：输入端104a和输出端104b。
The equalizer 101 includes an input end 101a, an output end 101b, and a control end 101c;
The relative ratio acquisition circuit 102 includes: an input end 102a and an output end 102b;
The path 103 includes: a first input end 103a, a second input end 103b, and an output end 103c;
The equalization controller 104 includes an input 104a and an output 104b.
均衡器的输出端101b与相对比例获取电路的输入端102a连
接；相对比例获取电路输出端102b与比较电路的第一输入端103a
连接；比较电路的第二输入端103b用于接收参考相对比例；比较
器的输出端103c与均衡控制器的输入端104a连接；均衡控制器的
输出端104b，用于输出均衡补偿因子；均衡控制器的输出端104b
与均衡器的控制端101c连接。
The output terminal 101b of the equalizer is connected to the input terminal 102a of the relative ratio acquisition circuit
Connected; the relative ratio acquisition circuit output 102b and the first input end 103a of the comparison circuit
Connecting; the second input terminal 103b of the comparison circuit is configured to receive the reference relative ratio;
The output terminal 103c of the device is connected to the input terminal 104a of the equalization controller;
An output 104b for outputting an equalization compensation factor; an output 104b of the equalization controller
It is connected to the control terminal 101c of the equalizer.
均衡器101，用于对输入端101a接收到的信号(即均衡器101
的输入信号)进行频率补偿，得到输出信号；经输出端101b输出
该输出信号。
An equalizer 101 for receiving signals on the input terminal 101a (ie, the equalizer 101)
The input signal) is frequency compensated to obtain an output signal; output through the output terminal 101b
The output signal.
示例性的，均衡器101可以为：在现有技术中的均衡器的基础
上增加一控制端101c之后形成的电子元件，本发明实施例对其具
体实现电路不进行限定；其中，控制端101c用于接收均衡控制器
104输出的均衡补偿因子。均衡器101的输入信号和输出信号均为
模拟电信号。“均衡器101对其输入信号进行频率补偿，得到输出
信号”具体可以为：均衡器101根据均衡补偿因子产生增益补偿峰，
并利用该增益补偿峰对其输入信号进行频率补偿，使得均衡器101
的输出信号的速率趋近于目标速率；其中，这里的“均衡补偿因子”
可以为预先设置的一均衡补偿因子，也可以为均衡器的控制端101c
接收到的由均衡控制器104输出的一均衡补偿因子。
Illustratively, equalizer 101 can be the basis of an equalizer in the prior art.
Adding an electronic component formed after a control terminal 101c, which is provided in the embodiment of the present invention
The body implementation circuit is not limited; wherein the control terminal 101c is configured to receive the equalization controller
The equalization compensation factor of 104 output. The input signal and the output signal of the equalizer 101 are both
Analog electrical signal. "Equalizer 101 frequency compensates its input signal to get the output
The signal may be specifically: the equalizer 101 generates a gain compensation peak according to the equalization compensation factor.
And using the gain compensation peak to frequency compensate the input signal thereof, so that the equalizer 101
The rate of the output signal approaches the target rate; where, the "equalization compensation factor"
It may be a preset compensation factor, or may be the control end of the equalizer 101c.
The received equalization compensation factor output by the equalization controller 104.
相对比例获取电路102，用于获取均衡器101的输出信号中的
高频信号成分的功率与中低频信号成分的功率的实际相对比例，或
获取均衡器101的输出信号中的高频信号成分的功率与该输出信
号的功率的实际相对比例。
a relative ratio acquisition circuit 102 for obtaining an output signal of the equalizer 101
The actual relative ratio of the power of the high frequency signal component to the power of the medium and low frequency signal component, or
Obtaining the power of the high frequency signal component in the output signal of the equalizer 101 and the output signal
The actual relative proportion of the power of the number.
示例性的，“高频信号成分的功率与中低频信号成分的功率的
实际相对比例”可以为：高频信号成分的功率相对中低频信号成分
的功率的实际相对比例，即
(表示为：情况1)；或中低频信号
成分的功率相对高频信号成分的功率的实际相对比例，即
(表
示为：情况2)。“高频信号成分的功率与该输出信号的功率的实际
相对比例”可以为：高频信号成分的功率相对该输出信号的功率
的实际相对比例，即
(表示为：情况3)；或该输出信号的功率
相对高频信号成分的功率的实际相对比例，即
(表示为：情况4)。
Illustratively, "the actual relative ratio of the power of the high frequency signal component to the power of the medium and low frequency signal component" may be: the actual relative ratio of the power of the high frequency signal component to the power of the medium and low frequency signal component, ie (Expressed as: Case 1); or the actual relative ratio of the power of the mid-low frequency signal component to the power of the high frequency signal component, ie (Expressed as: Case 2). "The actual relative ratio of the power of the high frequency signal component to the power of the output signal" may be: the actual relative ratio of the power of the high frequency signal component to the power of the output signal, ie (Expressed as: Case 3); or the actual relative ratio of the power of the output signal to the power of the high frequency signal component, ie (Expressed as: Case 4).
均衡器101的输出信号中的高频信号成分与中低频信号成分
的划分和该输出信号的速率有关。例如，当该输出信号的速率为
10G比特时，其对应的目标传输带宽一般在7.5GHz(赫兹)左右；
该情况下，中低频信号成分所占的带宽可以为几百MHz至几(如
2～4)GHz中的任一值(标记为F1)；高频信号成分所占的带宽可
以为几(如4～5)GHz至更高(如6～8)GHz中的任一值(标记为
F2)。当然，还可以通过其他方式进行划分，本发明实施例对此不
进行限定。
High frequency signal component and medium and low frequency signal component in the output signal of the equalizer 101
The division is related to the rate of the output signal. For example, when the rate of the output signal is
When 10G bits, the corresponding target transmission bandwidth is generally around 7.5GHz (hertz);
In this case, the bandwidth of the medium and low frequency signal components can be several hundred MHz to several (such as
Any value in 2 to 4) GHz (labeled as F1); the bandwidth occupied by the high-frequency signal component can be
Think of any value (such as 4 ~ 5) GHz to higher (such as 6 ~ 8) GHz (marked as
F2). Of course, the division can also be performed in other manners, and the embodiment of the present invention does not
Limited.
比较电路103，用于比较所述实际相对比例与所述参考相对比
例，得到比较结果。
Comparison circuit 103 for comparing the actual relative ratio with the reference
For example, the comparison result is obtained.
示例性的，“参考相对比例”用于表征均衡器101的输出信号
中高频信号成分的功率与中低频信号成分的功率的目标相对比例，
或均衡器101的输出信号中高频信号成分的功率与该输出信号的
功率的目标相对比例。具体的，当比较电路103的第一输入端103a
接收到的“实际相对比例”为高频信号成分的功率相对中低频信号
成分的功率的实际相对比例(即上述情况1)时，第二输入端103b
接收到的“参考相对比例”为高频信号成分的功率相对中低频信号
成分的功率的目标相对比例；其他几种情况(即上述情况2、3、4)
下，“实际相对比例”与“参考相对比例”的对应关系与此类似，
此处不再一一列举。
Illustratively, "reference relative scale" is used to characterize the output signal of equalizer 101
The power of the medium and high frequency signal components is proportional to the target of the power of the medium and low frequency signal components,
Or the power of the high frequency signal component in the output signal of the equalizer 101 and the output signal
The relative proportion of the target of power. Specifically, when the first input end 103a of the comparison circuit 103
The received "actual relative ratio" is the power of the high frequency signal component relative to the low frequency signal
The second input 103b when the actual relative ratio of the power of the component (ie, case 1 above)
The received "reference relative ratio" is the power of the high frequency signal component relative to the low frequency signal
The target relative proportion of the power of the component; several other cases (ie, cases 2, 3, 4 above)
The corresponding relationship between "actual relative proportion" and "reference relative ratio" is similar.
It is not listed here one by one.
“参考相对比例”可以通过以下方式获得：设置均衡器101
的均衡补偿因子，以使得均衡器101不对其输入信号进行频率补
偿；向均衡器101的输入端101a输入一具有目标速率的信号，利
用上述控制电路对该均衡器101进行控制；将相对比例获取电路
102获取的实际相对比例作为参考相对比例。其中，该获取方式可
以在上述控制电路上电初始化时执行。另外，“参考相对比例”还
可以是预先设置的一个值。
The "reference relative ratio" can be obtained by setting the equalizer 101
Equalization compensation factor so that equalizer 101 does not frequency compensate its input signal
Reimbursing; inputting a signal having a target rate to the input terminal 101a of the equalizer 101,
The equalizer 101 is controlled by the above control circuit; the relative ratio acquisition circuit is
The actual relative proportion obtained by 102 is used as a reference relative ratio. Among them, the acquisition method can be
It is executed when the above control circuit is electrically initialized. In addition, the "reference relative ratio" is also
It can be a value set in advance.
比较电路103可以通过模拟电路或数字电路实现。具体的：
The comparison circuit 103 can be implemented by an analog circuit or a digital circuit. specific:
当比较电路103通过模拟电路实现时，其输出端103c根据预
设电压值输出不同的电压值。具体的，当第一输入端103a接收的
电压/电流的值大于第二输入端103b接收的电压/电流的值时，输
出端103c输出大于预设电压值的一电压值；当第一输入端103a接
收的电压/电流的值小于第二输入端103b接收的电压/电流的值时，
输出端103c输出小于预设电压值的一电压值；当第一输入端103a
接收的电压/电流的值等于第二输入端103b接收的电压/电流的值
时，输出端103c输出预设电压值。且第一输入端103a接收的电压
/电流的值与第二输入端103b接收的电压/电流的值之间的差值越
大，输出端103c输出的电压值与预设电压值的之间的差值越大。
When the comparison circuit 103 is implemented by an analog circuit, its output terminal 103c is based on the pre
Set the voltage value to output different voltage values. Specifically, when the first input end 103a receives
When the value of the voltage/current is greater than the value of the voltage/current received by the second input terminal 103b,
The output terminal 103c outputs a voltage value greater than a preset voltage value; when the first input terminal 103a is connected
When the value of the received voltage/current is less than the value of the voltage/current received by the second input terminal 103b,
The output terminal 103c outputs a voltage value smaller than the preset voltage value; when the first input terminal 103a
The value of the received voltage/current is equal to the value of the voltage/current received by the second input 103b
At the time, the output terminal 103c outputs a preset voltage value. And the voltage received by the first input terminal 103a
The difference between the value of the /current and the value of the voltage/current received by the second input 103b
The larger the difference between the voltage value outputted by the output terminal 103c and the preset voltage value is.
示例性的，当比较电路103通过模拟电路实现时，该比较电路
103可以为比较器。比较器是通过比较两个输入端的电流或电压的
大小，在输出端输出不同电压结果的电子元件。需要说明的是，当
比较电路103为比较器时，比较电路的第一输入端103a是比较器
的正相输入端，比较电路的第二输入端103b是比较器的反向输入
端，比较电路的输出端103c是比较器的输出端。另外，比较电路
103还可以通过各种电阻、电容、电感等器件的其他组合来实现，
本发明对此不做限制。
Illustratively, when the comparison circuit 103 is implemented by an analog circuit, the comparison circuit
103 can be a comparator. The comparator compares the current or voltage at the two inputs
Size, the electronic component that outputs different voltage results at the output. It should be noted that when
When the comparison circuit 103 is a comparator, the first input terminal 103a of the comparison circuit is a comparator
The positive input terminal, the second input terminal 103b of the comparison circuit is the reverse input of the comparator
The output terminal 103c of the comparison circuit is the output of the comparator. In addition, the comparison circuit
103 can also be realized by other combinations of various resistors, capacitors, inductors, and the like.
The invention is not limited thereto.
当比较电路103通过数字电路实现时，可以用至少两位二进制
数字表示其输出端103c输出的比较结果；例如，可以用“11”表
示实际相对比例大于参考相对比例，用“00”表示实际相对比例小
于参考相对比例，用“10或01”表示实际相对比例等于参考相对
比例。当然，也可以用三位或三位以上的二进制数字表示一电压值，
该电压值与上述模拟电路实现方法中输出端103c输出的电压值的
功能类似。
When the comparison circuit 103 is implemented by a digital circuit, at least two bits of binary can be used.
The number indicates the comparison result output by its output terminal 103c; for example, the "11" table can be used.
The actual relative ratio is greater than the reference relative ratio, and the actual relative ratio is small with "00".
For reference relative proportions, use "10 or 01" to indicate that the actual relative ratio is equal to the reference relative
proportion. Of course, a voltage value of three or more digits can also be used to represent a voltage value.
The voltage value is the same as the voltage value outputted by the output terminal 103c in the above analog circuit implementation method.
The function is similar.
均衡控制器104，用于根据所述比较结果调节均衡器101的均
衡补偿因子，以使得均衡器101按照调节后的均衡补偿因子对均衡
器101的输入信号进行频率补偿。
The equalization controller 104 is configured to adjust the average of the equalizer 101 according to the comparison result.
The compensation factor is adjusted such that the equalizer 101 equalizes the adjusted equalization compensation factor
The input signal of the device 101 is frequency compensated.
示例性的，均衡控制器104可以通过模拟电路或数字电路实
现。具体实现时，可以在相对比例获取电路102与比较电路103
之间，比较电路103与均衡控制器104之间，或均衡控制器104
与均衡器101之间设置数模转换器或模拟转换器，以实现模拟信号
与数字信号之间的转换。例如，当比较电路103通过模拟电路实现，
且均衡控制器104通过数字电路实现时，可以在比较电路103与均
衡控制器104之间设置一个模数转换器，并在均衡控制器104与均
衡器101之间设置一个数模转换器。
Exemplarily, the equalization controller 104 can be implemented by an analog circuit or a digital circuit.
Now. In a specific implementation, the relative ratio acquisition circuit 102 and the comparison circuit 103 may be used.
Between the comparison circuit 103 and the equalization controller 104, or the equalization controller 104
A digital-to-analog converter or an analog converter is provided between the equalizer 101 to implement an analog signal
Conversion between digital signals. For example, when the comparison circuit 103 is implemented by an analog circuit,
And when the equalization controller 104 is implemented by a digital circuit, the comparison circuit 103 and the
An analog-to-digital converter is provided between the balance controllers 104, and the equalization controller 104 and the
A digital to analog converter is provided between the scales 101.
可选的，均衡控制器104具体用于执行以下任一动作：
Optionally, the equalization controller 104 is specifically configured to perform any of the following actions:
1)比较电路103的第一输入端103a接收到的“实际相对比例”
为上述情况1或情况3：
1) "actual relative ratio" received by the first input terminal 103a of the comparison circuit 103
For the above case 1 or case 3:
若“比较结果”为实际相对比例大于参考相对比例时，则减小
输出的均衡补偿因子；或，若“比较结果”为实际相对比例小于参
考相对比例时，则增大输出的均衡补偿因子。
If the "comparison result" is that the actual relative ratio is greater than the reference relative ratio, then decrease
The equalization compensation factor of the output; or, if the "comparison result" is the actual relative ratio is less than the reference
When the relative ratio is tested, the equalization compensation factor of the output is increased.
2)比较电路103的第一输入端103a接收到的“实际相对比例”
为上述情况2或情况4：
2) "actual relative ratio" received by the first input terminal 103a of the comparison circuit 103
For the above situation 2 or case 4:
若“比较结果”为实际相对比例大于参考相对比例时，则增大
输出的均衡补偿因子；或，若“比较结果”为实际相对比例小于参
考相对比例时，则减小输出的均衡补偿因子。
If the "comparison result" is that the actual relative ratio is greater than the reference relative ratio, then increase
The equalization compensation factor of the output; or, if the "comparison result" is the actual relative ratio is less than the reference
When the relative ratio is tested, the equalization compensation factor of the output is reduced.
需要说明的是，比较电路103的第一输入端103a接收到的“实
际相对比例”为上述情况1、2、3、4任一情况时，若“比较结果”
为实际相对比例等于参考相对比例，说明：此时的均衡补偿因子能
够使均衡器101的输出信号的速率满足目标速率，则均衡控制器
104不调节均衡器101的均衡补偿因子，并一直以该均衡补偿因子
控制均衡器101对均衡器101的输入信号进行频率补偿。
It should be noted that the first input end 103a of the comparison circuit 103 receives the "real"
If the relative ratio is the case of any of the above cases 1, 2, 3, and 4, if the "comparison result"
For the actual relative ratio is equal to the reference relative ratio, indicating: the equalization compensation factor at this time can
Equilibrium controller is sufficient to make the rate of the output signal of the equalizer 101 meet the target rate
104 does not adjust the equalization compensation factor of the equalizer 101, and always uses the equalization compensation factor
The control equalizer 101 frequency compensates the input signal of the equalizer 101.
另外可选的，均衡控制器104具体用于执行以下任一动作：
Alternatively, the equalization controller 104 is specifically configured to perform any of the following actions:
1)比较电路103的第一输入端103a接收到的“实际相对比例”
为上述情况1或情况3：
1) "actual relative ratio" received by the first input terminal 103a of the comparison circuit 103
For the above case 1 or case 3:
若“比较结果”大于预设区间的最大值时，则减小均衡控制器
输出的均衡补偿因子；或，若“比较结果”小于预设区间的最小值
时，则增大均衡控制器输出的均衡补偿因子。
If the "comparison result" is greater than the maximum value of the preset interval, then reduce the equalization controller
The equalization compensation factor of the output; or, if the "comparison result" is less than the minimum value of the preset interval
Then, the equalization compensation factor of the equalization controller output is increased.
2)比较电路103的第一输入端103a接收到的“实际相对比例”
为上述情况2或情况4：
2) "actual relative ratio" received by the first input terminal 103a of the comparison circuit 103
For the above situation 2 or case 4:
若“比较结果”大于预设区间的最大值时，则增大均衡控制器
输出的均衡补偿因子；或，若“比较结果”小于预设区间的最小值
时，则减小均衡控制器输出的均衡补偿因子。
If the "comparison result" is greater than the maximum value of the preset interval, increase the equalization controller
The equalization compensation factor of the output; or, if the "comparison result" is less than the minimum value of the preset interval
At the same time, the equalization compensation factor of the equalization controller output is reduced.
需要说明的是，比较电路103的第一输入端103a接收到的“实
际相对比例”为上述情况1、2、3、4任一情况时，若“比较结果”
在预设区间之内，说明：此时的均衡补偿因子能够使均衡器101
的输出信号的速率满足目标速率，则均衡控制器104不调节均衡器
101的均衡补偿因子，并一直以该均衡补偿因子控制均衡器101对
均衡器101的输入信号进行频率补偿。
It should be noted that the first input end 103a of the comparison circuit 103 receives the "real"
If the relative ratio is the case of any of the above cases 1, 2, 3, and 4, if the "comparison result"
Within the preset interval, it is stated that the equalization compensation factor at this time enables the equalizer 101
The rate of the output signal satisfies the target rate, and the equalization controller 104 does not adjust the equalizer
An equalization compensation factor of 101, and always controls the equalizer 101 with the equalization compensation factor
The input signal of the equalizer 101 is frequency compensated.
示例性的，这里的“预设区间”可以根据均衡器的输出信号的
速率与目标速率之间的允许误差进行确定。需要说明的是，在上述
情况1、2、3、4任一情况下，该预设区间的实际取值不同。
Exemplarily, the "preset interval" here can be based on the output signal of the equalizer.
The allowable error between the rate and the target rate is determined. It should be noted that, in the above
In any case of cases 1, 2, 3, and 4, the actual values of the preset intervals are different.
具体实现时，均衡控制器104可以按照步进的方式逐步调节均
衡补偿因子。具体的，每次将当前均衡补偿因子增大或减小一固定
间隔，并按照该调节后的均衡补偿因子控制均衡器101，依此循环，
直到比较电路103输出的比较结果为实际相对比例等于参考相对
比例或比较结果在预设区间内时，不再调节均衡补偿因子。其中，
本发明实施例对该固定间隔的具体取值不进行限定。
In a specific implementation, the equalization controller 104 can gradually adjust the steps in a stepwise manner.
Balance compensation factor. Specifically, each time the current equalization compensation factor is increased or decreased by a fixed
Interval, and controlling the equalizer 101 according to the adjusted equalization compensation factor, according to this cycle,
Until the comparison result output by the comparison circuit 103 is that the actual relative ratio is equal to the reference relative
When the ratio or comparison result is within the preset interval, the equalization compensation factor is no longer adjusted. among them,
The specific value of the fixed interval is not limited in the embodiment of the present invention.
如图2所示，在本发明实施例的一种实现方式中，相对比例获
取电路102可以包括：第一滤波器1021、第二滤波器1022、第一
功率探测器1023、第二功率探测器1024和第一比值电路1025。
As shown in FIG. 2, in an implementation manner of the embodiment of the present invention, the relative proportion is obtained.
The fetching circuit 102 can include: a first filter 1021, a second filter 1022, and a first
Power detector 1023, second power detector 1024, and first ratio circuit 1025.
第一滤波器1021包括：输入端1021a和输出端1021b；第二
滤波器1022包括：输入端1022a和输出端1022b；第一功率探测
器1023包括：输入端1023a和输出端1023b；第二功率探测器1024
包括：输入端1024a和输出端1024b；第一比值电路1025包括：
第一输入端1025a、第二输入端1025b和输出端1025c。
The first filter 1021 includes: an input end 1021a and an output end 1021b;
The filter 1022 includes an input end 1022a and an output end 1022b; the first power detection
The device 1023 includes: an input end 1023a and an output end 1023b; and a second power detector 1024
The input terminal 1024a and the output terminal 1024b include: the first ratio circuit 1025 includes:
The first input terminal 1025a, the second input terminal 1025b, and the output terminal 1025c.
第一滤波器的输入端1021a与第二滤波器的输入端1022a分别
与均衡器的输出端101b连接；第一滤波器的输出端1021b与第一
功率探测器的输入端1023a连接；第二滤波器的输出端1022b与第
二功率探测器的输入端1024a连接；第一功率探测器的输出端
1023b与第一比值电路的第一输入端1025a连接；第二功率探测器
的输出端1024b与第一比值电路的第二输入端1025b连接；第一比
值电路的输出端1025c与比较电路的第一输入端103a连接。
The input end 1021a of the first filter and the input end 1022a of the second filter respectively
Connected to the output 101b of the equalizer; the output 1021b of the first filter and the first
The input end 1023a of the power detector is connected; the output end of the second filter is 1022b and
The input end 1024a of the two power detectors is connected; the output of the first power detector
1023b is coupled to the first input terminal 1025a of the first ratio circuit; the second power detector
The output terminal 1024b is connected to the second input terminal 1025b of the first ratio circuit; the first ratio
The output terminal 1025c of the value circuit is coupled to the first input terminal 103a of the comparison circuit.
第一滤波器1021，用于对均衡器101的输出信号进行滤波，
得到高频信号成分。
a first filter 1021, configured to filter an output signal of the equalizer 101,
A high frequency signal component is obtained.
第二滤波器1022，用于对均衡器101的输出信号进行滤波，
得到中低频信号成分。
a second filter 1022, configured to filter an output signal of the equalizer 101,
Get the medium and low frequency signal components.
第一功率探测器1023，用于检测高频信号成分的功率。
The first power detector 1023 is configured to detect the power of the high frequency signal component.
第二功率探测器1024，用于检测低频信号成分的功率。
The second power detector 1024 is configured to detect the power of the low frequency signal component.
第一比值电路1025，用于获取高频信号成分的功率相对中低
频信号成分的功率的实际相对比例，或获取中低频信号成分的功率
相对所述高频信号成分的功率的实际相对比例。
The first ratio circuit 1025 is configured to obtain a relatively low-to-low power of the high-frequency signal component.
The actual relative ratio of the power of the frequency signal component, or the power of the low-frequency signal component
The actual relative proportion of power relative to the high frequency signal component.
示例性的，本发明实施例对第一滤波器1021和第二滤波器
1022的类型和具体实现电路不进行限定。例如，第一滤波器1021
的类型可以为高通滤波器、带通滤波器或带阻滤波器等；第二滤波
器1022的类型可以为低通滤波器、带通滤波器或带阻滤波器等。
具体实现时，可以根据高频信号成分和中低频信号成分所占的带宽
调节第一滤波器1021和第二滤波器1022的参数，以使得第一滤波
器1021输出高频信号成分，第二滤波器1022输出中低频信号成分。
Exemplarily, the embodiment of the present invention applies to the first filter 1021 and the second filter.
The type of 1022 and the specific implementation circuit are not limited. For example, the first filter 1021
The type can be a high pass filter, a band pass filter or a band stop filter; the second filter
The type of the device 1022 may be a low pass filter, a band pass filter or a band stop filter or the like.
In the specific implementation, the bandwidth occupied by the high frequency signal component and the medium and low frequency signal components can be used.
Adjusting parameters of the first filter 1021 and the second filter 1022 to cause the first filtering
The 1021 outputs a high frequency signal component, and the second filter 1022 outputs a low frequency signal component.
功率探测器(包括第一功率探测器1023、第二功率探测器
1024)是将其输入信号的功率转换成电压信号或电流信号，并输出
具体的电压值或电流值的电子元件。本发明实施例对功率探测器的
具体实现电路不进行限定。
Power detector (including first power detector 1023, second power detector
1024) is to convert the power of its input signal into a voltage signal or a current signal, and output
Specific electronic components of voltage or current values. Embodiments of the present invention for power detectors
The specific implementation circuit is not limited.
第一比值电路1025可以通过模拟电路或数字电路实现。其中，
第一比值电路1025可以单独存在，也可以集成在比较电路103中。
The first ratio circuit 1025 can be implemented by an analog circuit or a digital circuit. among them,
The first ratio circuit 1025 may exist alone or may be integrated in the comparison circuit 103.
需要说明的是，在本实现方式中，第一滤波器的输入端1021a
和第二滤波器的输入端1022a即为相对比例获取电路的输入端
102a；第一比值电路的输出端1025c即为相对比例获取电路的输出
端102b。
It should be noted that, in this implementation manner, the input end 1021a of the first filter
And the input end 1022a of the second filter is the input end of the relative ratio acquisition circuit
102a; the output of the first ratio circuit 1025c is the output of the relative ratio acquisition circuit
End 102b.
如图3所示，在本发明实施例的另一种实现方式中，相对比例
获取电路102可以包括：第三滤波器1026、第三功率探测器1027、
第四功率探测器1028和第二比值电路1029。
As shown in FIG. 3, in another implementation manner of the embodiment of the present invention, the relative proportion
The acquisition circuit 102 can include: a third filter 1026, a third power detector 1027,
A fourth power detector 1028 and a second ratio circuit 1029.
第三滤波器1026包括：输入端1026a和输出端1026b；第三
功率探测器1027包括：输入端1027a和输出端1027b；第四功率
探测器1028包括：输入端1028a和输出端1028b；第二比值电路
1029包括：第一输入端1029a、第二输入端1029b和输出端1029c。
The third filter 1026 includes: an input terminal 1026a and an output terminal 1026b;
The power detector 1027 includes: an input terminal 1027a and an output terminal 1027b; a fourth power
The detector 1028 includes an input terminal 1028a and an output terminal 1028b, and a second ratio circuit
1029 includes a first input 1029a, a second input 1029b, and an output 1029c.
第三滤波器的输入端1026a与第四功率探测器的输入端1028a
分别与均衡器的输出端101b连接；第三滤波器的输出端1026b与
第三功率探测器的输入端1027a连接；第三功率探测器的输出端
1027b与第二比值电路的第一输入端1029a连接；第四功率探测器
的输出端1028b与第二比值电路的第二输入端1029b连接；第二比
值电路的输出端1029c与比较电路的第一输入端103a连接。
Input 1026a of the third filter and input 1028a of the fourth power detector
Connected to the output 101b of the equalizer respectively; the output 1026b of the third filter
The input end 1027a of the third power detector is connected; the output of the third power detector
1027b is coupled to the first input terminal 1029a of the second ratio circuit; the fourth power detector
The output terminal 1028b is connected to the second input terminal 1029b of the second ratio circuit; the second ratio
The output terminal 1029c of the value circuit is coupled to the first input terminal 103a of the comparison circuit.
第三滤波器1026，用于对均衡器101的输出信号进行滤波，
得到高频信号成分。
a third filter 1026, configured to filter an output signal of the equalizer 101,
A high frequency signal component is obtained.
第三功率探测器1027，用于检测高频信号成分的功率。
The third power detector 1027 is configured to detect the power of the high frequency signal component.
第四功率探测器1028，用于检测均衡器101的输出信号的功
率。
a fourth power detector 1028 for detecting the work of the output signal of the equalizer 101
rate.
第二比值电路1029，用于获取高频信号成分的功率相对输出
信号的功率的实际相对比例，或获取输出信号的功率相对高频信号
成分的功率的实际相对比例。
a second ratio circuit 1029 for obtaining a power relative output of the high frequency signal component
The actual relative ratio of the power of the signal, or the power of the output signal relative to the high frequency signal
The actual relative proportion of the power of the component.
示例性的，第三滤波器1026的相关解释可以参考上述对第一
滤波器1021的解释。第三功率探测器1027、第四功率探测器1028
的相关解释可以参考上述对功率探测器的解释。
Exemplarily, the related explanation of the third filter 1026 can refer to the above
Explanation of filter 1021. Third power detector 1027, fourth power detector 1028
For a related explanation, reference can be made to the above explanation of the power detector.
第二比值电路可以通过模拟电路或数字电路实现。其中，第二
比值电路1029可以单独存在，也可以集成在比较电路103中。
The second ratio circuit can be implemented by an analog circuit or a digital circuit. Among them, the second
The ratio circuit 1029 may be present separately or integrated in the comparison circuit 103.
需要说明的是，在本实现方式中，第三滤波器的输入端1026a
和第四功率探测器的输入端1028a即为相对比例获取电路的输入
端102a；第二比值电路的输出端1029c即为相对比例获取电路的
输出端102b。
It should be noted that, in this implementation manner, the input end of the third filter 1026a
And the input 1028a of the fourth power detector is the input of the relative ratio acquisition circuit
The end 102a; the output end 1029c of the second ratio circuit is a relative ratio acquisition circuit
Output 102b.
本发明实施例提供了一种均衡器的控制电路，由于控制电路可
以自动调节均衡器的均衡补偿因子，使得均衡器的输出信号的速率
趋近于目标速率。与现有技术中相比，提高了均衡器的灵活性和精
确度，进而使得均衡器对输入信号达到最优的均衡补偿效果。
Embodiments of the present invention provide a control circuit for an equalizer, because the control circuit can
Automatically adjust the equalization compensation factor of the equalizer to make the output signal rate of the equalizer
Approaching the target rate. Increases the flexibility and precision of the equalizer compared to the prior art
The accuracy, in turn, allows the equalizer to achieve an optimal equalization compensation effect on the input signal.
下面对基于上述控制电路控制均衡器的控制方法进行说明。
Next, a control method of controlling the equalizer based on the above control circuit will be described.
实施例1
Example 1
本实施例提供一种基于图2的均衡器的控制电路的控制方法。
上述“实际相对比例”在本实施例中为：高频信号成分的功率相对
中低频信号成分的功率的实际相对比例(即上述情况1)；上述“参
考相对比例”在本实施例中为：高频信号成分的功率相对中低频信
号成分的功率的目标相对比例；上述“第一滤波器”在本实施例中
为：第一带通滤波器；上述“第二滤波器”在本实施例中为：第二
带通滤波器。
This embodiment provides a control method of a control circuit based on the equalizer of FIG. 2.
The above "actual relative ratio" is in this embodiment: the power of the high frequency signal component is relatively
The actual relative proportion of the power of the low- and medium-frequency signal components (ie, case 1 above);
In the present embodiment, the power of the high frequency signal component is relatively low and medium frequency.
The target relative ratio of the power of the number component; the above "first filter" is in this embodiment
Is: a first band pass filter; the above "second filter" is: second in this embodiment
Bandpass filter.
如图4所示，为本实施例提供的一种均衡器的控制方法，包括：
As shown in FIG. 4, a method for controlling an equalizer according to this embodiment includes:
401、均衡器根据均衡补偿因子对输入信号进行频率补偿，并
输出频率补偿后的信号。
401. The equalizer performs frequency compensation on the input signal according to the equalization compensation factor, and
Output frequency compensated signal.
示例性的，该均衡补偿因子可以为预先设置的一均衡补偿因子
或均衡器在前一循环流程接收到的由均衡控制器输出的一均衡补
偿因子。
Exemplarily, the equalization compensation factor may be a preset equalization compensation factor.
Or an equalization complement received by the equalization controller received by the equalizer in the previous cycle.
Compensation factor.
402、第一带通滤波器对该输出信号进行滤波，得到高频信号
成分。
402. The first band pass filter filters the output signal to obtain a high frequency signal.
ingredient.
403、第一功率探测器对该高频信号成分进行功率检测，得到
高频信号成分的功率。
403. The first power detector performs power detection on the high frequency signal component to obtain
The power of the high frequency signal component.
404、第二带通滤波器对该输出信号进行滤波，得到中低频信
号成分。
404. The second band pass filter filters the output signal to obtain a medium and low frequency signal.
Number composition.
405、第二功率探测器对该中低频信号成分进行功率检测，得
到中低频信号成分的功率。
405. The second power detector performs power detection on the medium and low frequency signal components.
The power to the mid-low frequency signal component.
其中，步骤402-403与步骤404-405的执行顺序可以不分先后，
本发明实施例对此不做限定。
The execution order of steps 402-403 and steps 404-405 may be in no particular order.
This embodiment of the present invention does not limit this.
406、第一比值电路获取高频信号成分的功率相对中低频信号
成分的功率的实际相对比例。
406. The first ratio circuit obtains the power of the high frequency signal component relative to the low frequency signal.
The actual relative proportion of the power of the component.
407、比较电路对该实际相对比例与参考相对比例进行求差运
算，得到差值。
407. The comparison circuit performs the difference between the actual relative ratio and the reference relative ratio.
Count, get the difference.
408、均衡控制器判断该差值是否在在预设区间内。
408. The equalization controller determines whether the difference is within a preset interval.
若是，说明：均衡补偿因子能够使均衡器的输出信号的速率满
足目标速率，即均衡控制器不需要调节均衡补偿因子，则执行步骤
412；若否，则执行步骤409。
If yes, the equalization compensation factor can make the output signal of the equalizer full.
The target rate, that is, the equalization controller does not need to adjust the equalization compensation factor, then the steps are performed.
412; If no, step 409 is performed.
409、均衡控制器判断该差值是否大于预设区间的最大值。
409. The equalization controller determines whether the difference is greater than a maximum value of the preset interval.
若是，则执行步骤410；若否，则执行步骤411。
If yes, go to step 410; if no, go to step 411.
可选的，步骤409可以用以下步骤替换：均衡控制器判断该差
值是否小于预设区间的最小值。若是，则执行步骤411；若否，则
执行步骤410。
Optionally, step 409 can be replaced by the following steps: the equalization controller determines the difference
Whether the value is less than the minimum value of the preset interval. If yes, go to step 411; if no, then
Go to step 410.
410、均衡控制器减小均衡补偿因子。
410. The equalization controller reduces the equalization compensation factor.
执行步骤410之后，执行步骤412。
After step 410 is performed, step 412 is performed.
411、均衡控制器增大均衡补偿因子。
411. The equalization controller increases the equalization compensation factor.
412、均衡控制器向均衡器输出调节后的均衡补偿因子，以使
得均衡器根据该调节后的均衡补偿因子对其输入信号进行频率补
偿。
412. The equalization controller outputs the adjusted equalization compensation factor to the equalizer, so that
The equalizer performs frequency compensation on the input signal according to the adjusted equalization compensation factor.
Reimbursement.
执行步骤412之后，执行步骤401。
After step 412 is performed, step 401 is performed.
需要说明的是，执行上述步骤410或步骤411之后得到的均衡
补偿因子，即为调节后的均衡补偿因子。
It should be noted that the equalization obtained after performing step 410 or step 411 above is performed.
The compensation factor is the adjusted equalization compensation factor.
本实施例提供的均衡器的控制方法能够自动调节均衡器的均
衡补偿因子，使得均衡器的输出信号的速率趋近于目标速率。与现
有技术中相比，提高了均衡器的灵活性和精确度，进而使得均衡器
对输入信号达到最优的均衡补偿效果。
The equalizer control method provided in this embodiment can automatically adjust the equalizer
The compensation factor is such that the rate of the output signal of the equalizer approaches the target rate. And now
Compared with the technology, the flexibility and accuracy of the equalizer are improved, and the equalizer is made.
The optimal equalization compensation effect is achieved for the input signal.
实施例2
Example 2
本实施例提供一种基于图3的均衡器的控制电路的控制方法。
上述“实际相对比例”在本实施例中为：高频信号成分的功率相对
输出信号的功率的实际相对比例(即上述情况3)；上述“参考相
对比例”在本实施例中为：高频信号成分的功率相对输出信号的功
率的目标相对比例；上述“第三滤波器”在本实施例中为：第三带
通滤波器。
This embodiment provides a control method of a control circuit based on the equalizer of FIG.
The above "actual relative ratio" is in this embodiment: the power of the high frequency signal component is relatively
The actual relative proportion of the power of the output signal (ie, case 3 above); the above reference phase
In the present embodiment, the power of the high frequency signal component is relative to the power of the output signal.
The target relative ratio of the rate; the above-mentioned "third filter" is: the third band in this embodiment
Pass filter.
如图5所示，为本实施例提供的一种均衡器的控制方法，包括：
As shown in FIG. 5, a method for controlling an equalizer according to this embodiment includes:
501、均衡器根据均衡补偿因子对输入信号进行频率补偿，并
输出频率补偿后的信号。
501, the equalizer performs frequency compensation on the input signal according to the equalization compensation factor, and
Output frequency compensated signal.
示例性的，该均衡补偿因子是预先设置的一均衡补偿因子或是
均衡器在前一循环流程接收到的由均衡控制器输出的一均衡补偿
因子。
Exemplarily, the equalization compensation factor is a preset equalization compensation factor or
An equalization compensation received by the equalizer controller received by the equalizer in the previous cycle
factor.
502、第三带通滤波器对该输出信号进行滤波操作，得到高频
信号成分。
502. The third band pass filter performs a filtering operation on the output signal to obtain a high frequency.
Signal component.
503、第三功率探测器对该高频信号成分进行功率检测，得到
高频信号成分的功率。
503. The third power detector performs power detection on the high frequency signal component to obtain
The power of the high frequency signal component.
504、第四功率探测器对该输出信号进行功率检测，得到信号
的功率。
504. The fourth power detector performs power detection on the output signal to obtain a signal.
Power.
其中，步骤502-503与步骤504的执行顺序可以不分先后，本
发明实施例对此不做限定。
The execution order of steps 502-503 and step 504 may be in no particular order.
The embodiment of the invention does not limit this.
505、第二比值电路获取高频信号成分的功率相对输出信号的
功率的实际相对比例。
505. The second ratio circuit obtains the power of the high frequency signal component relative to the output signal.
The actual relative ratio of power.
506、比较电路对该实际相对比例与参考相对比例进行求差运
算，得到差值。
506. The comparison circuit performs the difference between the actual relative ratio and the reference relative ratio.
Count, get the difference.
507、均衡控制器判断该差值是否在在预设区间内。
507. The equalization controller determines whether the difference is within a preset interval.
若是，说明：均衡补偿因子能够使均衡器的输出信号的速率满
足目标速率，即均衡控制器不需要调节均衡补偿因子，则执行步骤
511；若否，则执行步骤508。
If yes, the equalization compensation factor can make the output signal of the equalizer full.
The target rate, that is, the equalization controller does not need to adjust the equalization compensation factor, then the steps are performed.
511; if no, step 508 is performed.
508、均衡控制器判断该差值是否大于预设区间的最大值。
508. The equalization controller determines whether the difference is greater than a maximum value of the preset interval.
若是，则执行步骤509；若否，则执行步骤510。
If yes, go to step 509; if no, go to step 510.
可选的，步骤508还可以用以下步骤替换：均衡控制器判断该
差值是否小于预设区间的最小值。
Optionally, step 508 can also be replaced by the following steps: the equalization controller determines the
Whether the difference is less than the minimum value of the preset interval.
若是，则执行步骤510；若否，则执行步骤509。
If yes, go to step 510; if no, go to step 509.
509、均衡控制器减小均衡补偿因子。
509. The equalization controller reduces the equalization compensation factor.
执行步骤509之后，执行步骤511。
After step 509 is performed, step 511 is performed.
510、均衡控制器增大均衡补偿因子。
510. The equalization controller increases the equalization compensation factor.
511、均衡控制器向均衡器输出调节后的均衡补偿因子，以使
得均衡器根据该调节后的均衡补偿因子对其输入信号进行频率补
偿。
511. The equalization controller outputs the adjusted equalization compensation factor to the equalizer, so that
The equalizer performs frequency compensation on the input signal according to the adjusted equalization compensation factor.
Reimbursement.
执行步骤511之后，执行步骤501。
After step 511 is performed, step 501 is performed.
需要说明的是，执行上述步骤509或步骤510之后得到的均衡
补偿因子，即为调节后的均衡补偿因子。
It should be noted that the equalization obtained after performing step 509 or step 510 above is performed.
The compensation factor is the adjusted equalization compensation factor.
本实施例提供的均衡器的控制方法能够自动调节均衡器的均
衡补偿因子，使得均衡器的实际输出信号的速率趋近于目标速率。
与现有技术中相比，提高了均衡器的灵活性和精确度，进而使得均
衡器对输入信号达到最优的均衡补偿效果。
The equalizer control method provided in this embodiment can automatically adjust the equalizer
The compensation factor is such that the rate of the actual output signal of the equalizer approaches the target rate.
Compared with the prior art, the flexibility and accuracy of the equalizer are improved, thereby making both
The instrument achieves an optimal equalization compensation effect on the input signal.
本发明实施例还提供了一种均衡器，如图6所示，该均衡器包
括：输入端601、输出端602和控制端603。
The embodiment of the invention further provides an equalizer, as shown in FIG. 6, the equalizer package
The input terminal 601, the output terminal 602 and the control terminal 603 are included.
输入端601，用于接收输入信号。
The input terminal 601 is configured to receive an input signal.
输出端602，用于输出信号；其中，该输出信号为均衡器按照
均衡补偿因子均衡补偿后的信号。
The output end 602 is configured to output a signal; wherein the output signal is an equalizer according to
The equalization compensation factor equalizes the compensated signal.
控制端603，用于接收控制电路输出的调节后的均衡补偿因
子。
The control terminal 603 is configured to receive the adjusted equalization compensation factor of the output of the control circuit
child.
其中，控制电路为上述实施例中任一种均衡器的控制电路。
The control circuit is the control circuit of any of the equalizers in the above embodiments.
可选的，该均衡器还可以包括各种电阻、电容、电感等器件，
本发明对此和各器件之间的连接方式不做限制。
Optionally, the equalizer can also include various resistors, capacitors, inductors, and the like.
The present invention does not limit the connection between this device and each device.
本发明实施例提供的均衡器包括：输入端、输出端和控制端，
由于均衡器增加了控制端，可以接收控制电路自动调节的均衡补偿
因子，因此均衡器可以根据该均衡补偿因子对输入信号进行频率补
偿，使得均衡器的输出信号的速率趋近于目标速率。与现有技术中
相比，提高了均衡器的灵活性和精确度，进而使得均衡器对输入信
号达到最优的均衡补偿效果。
The equalizer provided by the embodiment of the present invention includes: an input end, an output end, and a control end.
Since the equalizer adds the control terminal, it can receive the equalization compensation automatically adjusted by the control circuit.
Factor, so the equalizer can frequency compensate the input signal according to the equalization compensation factor
The compensation is such that the rate of the output signal of the equalizer approaches the target rate. With prior art
In comparison, the flexibility and accuracy of the equalizer are improved, which in turn causes the equalizer to input the signal.
The number achieves the optimal balance compensation effect.
基于上述实施例提供的均衡器的控制电路和均衡器，本发明实
施例还提供了一种光接收机，如图7所示，该光接收机包括光接收
模块(Receiver Optical Subassembly，简称ROSA)701、均衡器702、
控制均衡器的控制电路703以及限幅放大器(Limiting Amplifier，
简称LA)704；其中，ROSA701、均衡器702、控制均衡器的控制
电路703、LA704可以统称为光接收机模拟前端。
The present invention is based on the control circuit and equalizer of the equalizer provided by the above embodiments.
The embodiment also provides an optical receiver, as shown in FIG. 7, the optical receiver includes light receiving
Module (Receiver Optical Subassembly, ROSA for short) 701, equalizer 702,
Control circuit 703 for controlling the equalizer and limiting amplifier (Limiting Amplifier,
Referred to as LA) 704; wherein, ROSA701, equalizer 702, control equalizer control
The circuits 703 and LA704 may be collectively referred to as an optical receiver analog front end.
ROSA701包括：输入端、输出端；均衡器702包括：输入端、
输出端、控制端；控制均衡器的控制电路703包括：输入端和输出
端；LA704包括：输入端和输出端。
The ROSA 701 includes: an input end and an output end; the equalizer 702 includes: an input end,
Output terminal, control terminal; control circuit 703 for controlling equalizer includes: input terminal and output
The LA704 includes: an input end and an output end.
ROSA701的输出端与均衡器702的输入端连接；均衡器702
的输出端分别与控制均衡器的控制电路703的输入端和LA704的
输入端连接；均衡器702的控制端与控制均衡器的控制电路703
的输出端连接。
An output of the ROSA 701 is coupled to an input of the equalizer 702; an equalizer 702
The output ends are respectively connected to the input of the control circuit 703 of the control equalizer and the LA704
Input terminal connection; control terminal of equalizer 702 and control circuit 703 for controlling equalizer
The output is connected.
ROSA701，用于将接收的光信号转换为电信号。示例性的，
ROSA701可以由雪崩光电二极管(Avalanche Photodiode，简称
APD)和跨阻放大器(Trans-impedance Amplifier，简称TIA)组成。
The ROSA 701 is configured to convert the received optical signal into an electrical signal. Illustrative,
ROSA701 can be avalanche photodiode (Avalanche Photodiode, abbreviated
APD) and Trans-impedance Amplifier (TIA).
均衡器702，用于根据均衡补偿因子产生增益补偿峰，对输入
信号进行频率补偿，得到输出信号。
The equalizer 702 is configured to generate a gain compensation peak according to the equalization compensation factor, and input the
The signal is frequency compensated to obtain an output signal.
控制均衡器的控制电路703，用于输出调节后的均衡补偿因
子；其中，控制均衡器的控制电路(以下简称为“控制电路”)703
可以为上述实施例中任一种均衡器的控制电路。
Control circuit 703 for controlling the equalizer for outputting the adjusted equalization compensation factor
a control circuit for controlling the equalizer (hereinafter simply referred to as "control circuit") 703
It may be the control circuit of any of the above embodiments.
限幅放大器LA704，用于将均衡器702的输出信号幅度放大并
限制在一定范围内，以使得光接收机数字后端可以对该信号进行时
钟数据恢复。
A limiting amplifier LA704 for amplifying the output signal amplitude of the equalizer 702 and
Limited to a range so that the optical receiver's digital back end can time the signal
Clock data recovery.
由于均衡器702具有控制端，可以接收控制电路703输出的调
节后的均衡补偿因子；因此均衡器702可以根据该均衡补偿因子对
均衡器702的输入信号进行频率补偿，使得均衡器702的输出信号
的速率趋近于目标速率，从而提高ROSA701的输出信号的速率，
即提高ROSA701的带宽。也就是说，可以利用低带宽的ROSA、
均衡器和控制电路的组合提高低宽带的ROSA的带宽，达到或接近
高带宽的ROSA的带宽。
Since the equalizer 702 has a control terminal, the output of the control circuit 703 can be received.
The equalization compensation factor after the node; therefore, the equalizer 702 can be based on the equalization compensation factor pair
The input signal of the equalizer 702 is frequency compensated such that the output signal of the equalizer 702
The rate approaches the target rate, thereby increasing the rate of the output signal of the ROSA 701,
That is to increase the bandwidth of the ROSA701. In other words, you can take advantage of low bandwidth ROSA,
The combination of equalizer and control circuitry increases the bandwidth of low-bandwidth ROSA, at or near
High bandwidth ROSA bandwidth.
下面以利用传输速率为2.5G比特的ROSA(简称2.5G ROSA)、
均衡器和控制电路的组合达到或接近传输速率为10G比特的
ROSA(简称10G ROSA)的带宽为例，来说明利用低带宽的ROSA、
均衡器和控制电路的组合达到或接近高带宽的ROSA的带宽的原
理：
The following uses a ROSA with a transmission rate of 2.5 Gbits (referred to as 2.5G ROSA).
The combination of the equalizer and the control circuit achieves or approaches a transmission rate of 10 Gbits.
The bandwidth of ROSA (referred to as 10G ROSA) is taken as an example to illustrate the use of low bandwidth ROSA,
The combination of the equalizer and the control circuit reaches or approaches the original bandwidth of the high bandwidth ROSA
Reason:
10G ROSA的带宽一般为7～8GHz中的任一值，利用10G
ROSA组成的传输速率为10G比特的光接收机(简称10G光接收
机)的模拟前端的频率响应曲线如图8所示。其中，频率响应曲线
体现了频率响应特性；图8中的横坐标表示10G ROSA的输入信号
的频率F，其单位为赫兹(HZ)；纵坐标表示10G ROSA的输出信
号的电平V，其单位为分贝(dB)。
The bandwidth of 10G ROSA is generally any value from 7 to 8 GHz, using 10G.
Optical receiver composed of ROSA with a transmission rate of 10G bits (referred to as 10G optical reception)
The frequency response curve of the analog front end of the machine is shown in Fig. 8. Among them, the frequency response curve
Reflects the frequency response characteristics; the abscissa in Figure 8 represents the input signal of 10G ROSA
Frequency F, in Hertz (HZ); ordinate indicates the output of 10G ROSA
The level V of the number is in decibels (dB).
2.5G ROSA的带宽一般为2～4GHz中的任一值，2.5G ROSA
的频率响应曲线如图9中(1)所示。均衡器根据控制电路输出的
均衡补偿因子调节均衡器的频率响应曲线；当均衡器的频率响应曲
线如图9中(2)所示时，利用2.5G ROSA、均衡器和控制电路的
组合组成的光接收机的模拟前端的频率响应曲线如图9中(3)所
示；此时，图9中(3)所示的频率响应曲线与如图8所示的频率
响应曲线相同或接近，也就是说，该组合的带宽可以达到或接近
10G ROSA的带宽。
2.5G ROSA bandwidth is generally any value from 2 to 4GHz, 2.5G ROSA
The frequency response curve is shown in (1) of Fig. 9. The equalizer is output according to the control circuit
The equalization compensation factor adjusts the frequency response curve of the equalizer; when the frequency response of the equalizer
The line is shown in Figure 2 (2), using 2.5G ROSA, equalizer and control circuit
The frequency response curve of the analog front end of the combined optical receiver is shown in Fig. 9 (3).
At this time, the frequency response curve shown in (3) of FIG. 9 and the frequency as shown in FIG.
The response curves are the same or close, that is, the bandwidth of the combination can be reached or close
10G ROSA bandwidth.
本发明实施例提供的光接收机，由于能够利用低带宽的
ROSA、均衡器和控制电路的组合达到或接近高带宽的ROSA的带
宽，所以该光接收机的性能可以达到由高带宽的ROSA组成的光接
收机的性能。由于低带宽的ROSA、均衡器和控制电路的组合的成
本低于高带宽的ROSA的成本，因此相对现有技术中利用高带宽的
ROSA组成的光接收机，本发明实施例提供的光接收机能够节省成
本。
The optical receiver provided by the embodiment of the present invention can utilize low bandwidth
The combination of ROSA, equalizer and control circuit reaches or approaches the band of high bandwidth ROSA
Wide, so the performance of the optical receiver can reach the optical connection consisting of high bandwidth ROSA
The performance of the receiver. Due to the combination of low bandwidth ROSA, equalizer and control circuitry
This is lower than the cost of high bandwidth ROSA, so it uses high bandwidth compared to the prior art.
The optical receiver composed of the ROSA can save the optical receiver provided by the embodiment of the invention.
this.
在本申请所提供的几个实施例中，应该理解到，所揭露的系统，
装置和方法，可以通过其它的方式实现。例如，以上所描述的装置
实施例仅仅是示意性的，例如，所述单元的划分，仅仅为一种逻辑
功能划分，实际实现时可以有另外的划分方式，例如多个单元或组
件可以结合或者可以集成到另一个系统，或一些特征可以忽略，或
不执行。另一点，所显示或讨论的相互之间的耦合或直接耦合或通
信连接可以是通过一些接口，装置或单元的间接耦合或通信连接，
可以是电性，机械或其它的形式。
In the several embodiments provided by the present application, it should be understood that the disclosed system,
The apparatus and method can be implemented in other ways. For example, the device described above
The embodiment is merely illustrative, for example, the division of the unit is only one logic
Functional division, there may be additional divisions in actual implementation, such as multiple units or groups
Pieces can be combined or integrated into another system, or some features can be ignored, or
Not executed. Another point, the mutual coupling or direct coupling or communication shown or discussed
A letter connection can be an indirect coupling or communication connection through some interface, device or unit.
It can be electrical, mechanical or other form.
所述作为分离部件说明的单元可以是或者也可以不是物理上
分开的，作为单元显示的部件可以是或者也可以不是物理单元，即
可以位于一个地方，或者也可以分布到多个网络单元上。可以根据
实际的需要选择其中的部分或者全部单元来实现本实施例方案的
目的。
The unit described as a separate component may or may not be physically
Separate, the components displayed as units may or may not be physical units, ie
It can be located in one place or it can be distributed to multiple network units. Can be based on
Actually, some or all of the units need to be selected to implement the solution of the embodiment.
purpose.
另外，在本发明各个实施例中的各功能单元可以集成在一个处
理单元中，也可以是各个单元单独物理包括，也可以两个或两个以
上单元集成在一个单元中。上述集成的单元既可以采用硬件的形式
实现，也可以采用硬件加软件功能单元的形式实现。
In addition, each functional unit in various embodiments of the present invention can be integrated in one place
In the unit, it may be that each unit is physically included, or two or two
The upper unit is integrated in one unit. The above integrated unit can be in the form of hardware
Implementation can also be implemented in the form of hardware plus software functional units.
而且，本实施例中涉及的用词“连接”可以是间接相连，其既
可以表示单元或部件之间的直接通过导线相连，也可以表示通过其
他模块或部件相连。
Moreover, the term "connected" as used in this embodiment may be indirectly connected,
It can mean that the unit or component is directly connected by a wire, or can be represented by
His modules or components are connected.
最后应说明的是：以上实施例仅用以说明本发明的技术方案，
而非对其限制；尽管参照前述实施例对本发明进行了详细的说明，
本领域的普通技术人员应当理解：其依然可以对前述各实施例所记
载的技术方案进行修改，或者对其中部分技术特征进行等同替换；
而这些修改或者替换，并不使相应技术方案的本质脱离本发明各实
施例技术方案的精神和范围。
Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention.
Rather than limiting it; although the invention has been described in detail with reference to the foregoing embodiments,
It will be understood by one of ordinary skill in the art that it can still be recorded in the foregoing embodiments.
Modifications to the technical solutions contained, or equivalent replacement of some of the technical features;
And these modifications or substitutions do not detract from the essence of the corresponding technical solutions.
The spirit and scope of the technical solution.
以上所述，仅为本发明的具体实施方式，但本发明的保护范围
并不局限于此，任何熟悉本技术领域的技术人员在本发明揭露的技
术范围内，可轻易想到变化或替换，都应涵盖在本发明的保护范围
之内。因此，本发明的保护范围应以所述权利要求的保护范围为准。
The above description is only a specific embodiment of the present invention, but the scope of protection of the present invention
It is not limited thereto, and any skill familiar to those skilled in the art is disclosed in the present invention.
Changes or substitutions are easily conceivable within the scope of the invention and should be covered by the scope of protection of the present invention.
within. Therefore, the scope of the invention should be determined by the scope of the appended claims.
Claims (9)
- 一种均衡器的控制电路，其特征在于，均衡器包括：输入端、 输出端和控制端；所述控制电路包括：相对比例获取电路、比较电 路和均衡控制器；所述相对比例获取电路与所述均衡控制器均包括： 输入端和输出端；所述比较电路包括：第一输入端，第二输入端和 输出端； An equalizer control circuit, characterized in that the equalizer comprises: an input end, An output end and a control end; the control circuit comprises: a relative ratio acquisition circuit, and a comparison power a road and equalization controller; the relative ratio acquisition circuit and the equalization controller both include: An input end and an output end; the comparison circuit includes: a first input end, a second input end, and Output所述相对比例获取电路的输入端与所述均衡器的输出端连接； An input end of the relative ratio acquisition circuit is connected to an output end of the equalizer;所述相对比例获取电路的输出端与所述比较电路的第一输入端 连接； An output end of the relative ratio acquisition circuit and a first input end of the comparison circuit connection;所述比较电路的第二输入端，用于接收参考相对比例； a second input end of the comparison circuit, configured to receive a reference relative ratio;所述比较电路的输出端与所述均衡控制器的输入端连接； An output end of the comparison circuit is connected to an input end of the equalization controller;所述均衡控制器的输出端，用于输出均衡补偿因子； An output of the equalization controller is configured to output an equalization compensation factor;所述均衡控制器的输出端与所述均衡器的控制端连接； An output end of the equalization controller is connected to a control end of the equalizer;所述相对比例获取电路，用于获取所述均衡器的输出信号中的 高频信号成分的功率与中低频信号成分的功率的实际相对比例，或 获取所述均衡器的输出信号中的高频信号成分的功率与所述输出信 号的功率的实际相对比例； The relative ratio acquisition circuit is configured to acquire an output signal of the equalizer The actual relative ratio of the power of the high frequency signal component to the power of the medium and low frequency signal component, or Obtaining a power of the high frequency signal component in the output signal of the equalizer and the output signal The actual relative proportion of the power of the number;所述比较电路，用于比较所述实际相对比例与所述参考相对比 例，得到比较结果； The comparison circuit is configured to compare the actual relative ratio with the reference For example, the comparison result is obtained;所述均衡控制器，用于根据所述比较结果调节所述均衡器的均 衡补偿因子，以使得所述均衡器按照所述调节后的均衡补偿因子对 所述均衡器的输入信号进行频率补偿。 The equalization controller is configured to adjust the equalizer according to the comparison result Compensating the compensation factor such that the equalizer follows the adjusted equalization compensation factor pair The input signal of the equalizer is frequency compensated.
- 根据权利要求1所述的控制电路，其特征在于，所述相对比 例获取电路包括：第一滤波器、第二滤波器、第一功率探测器、第 二功率探测器和第一比值电路；所述第一比值电路包括：第一输入 端、第二输入端和输出端； The control circuit of claim 1 wherein said relative ratio The example obtaining circuit includes: a first filter, a second filter, a first power detector, and a first a second power detector and a first ratio circuit; the first ratio circuit comprising: a first input End, second input and output;所述第一滤波器的输入端、所述第二滤波器的输入端分别与所 述均衡器的输出端连接； An input end of the first filter and an input end of the second filter respectively Connecting the output of the equalizer;所述第一滤波器的输出端与所述第一功率探测器的输入端连 接； An output of the first filter is coupled to an input of the first power detector Connect所述第二滤波器的输出端与所述第二功率探测器的输入端连 接； An output of the second filter is coupled to an input of the second power detector Connect所述第一功率探测器的输出端与所述比较电路的第一输入端连 接；所述第二功率探测器的输出端与所述比较电路的第二输入端连 接； An output of the first power detector is coupled to a first input of the comparison circuit Connecting the output of the second power detector to the second input of the comparison circuit Connect所述第一比值电路的输出端与所述均衡控制器的输入端连接； An output of the first ratio circuit is coupled to an input of the equalization controller;所述第一滤波器，用于对所述均衡器的输出信号进行滤波，得 到高频信号成分； The first filter is configured to filter an output signal of the equalizer To high frequency signal components;所述第二滤波器，用于对所述均衡器的输出信号进行滤波，得 到中低频信号成分； The second filter is configured to filter an output signal of the equalizer To the medium and low frequency signal components;所述第一功率探测器，用于检测所述高频信号成分的功率； The first power detector is configured to detect power of the high frequency signal component;所述第二功率探测器，用于检测所述低频信号成分的功率； The second power detector is configured to detect power of the low frequency signal component;所述第一比值电路，用于获取所述高频信号成分的功率相对所 述中低频信号成分的功率的实际相对比例，或获取所述中低频信号 成分的功率相对所述高频信号成分的功率的实际相对比例。 The first ratio circuit is configured to acquire a power relative to the high frequency signal component Describe the actual relative ratio of the power of the low frequency signal component, or obtain the low frequency signal The actual relative ratio of the power of the component to the power of the high frequency signal component.
- 根据权利要求2所述的控制电路，其特征在于，所述第一比 值电路，用于获取所述高频信号成分的功率相对所述中低频信号成 分的功率的实际相对比例；所述均衡控制器具体用于： The control circuit of claim 2 wherein said first ratio a value circuit for obtaining power of the high frequency signal component relative to the medium and low frequency signal The actual relative proportion of the divided power; the equalization controller is specifically used to:当所述比较结果为所述实际相对比例大于参考相对比例时，减 小所述均衡器的均衡补偿因子；或， When the comparison result is that the actual relative ratio is greater than the reference relative ratio, Small equalization compensation factor of the equalizer; or当所述比较结果为所述实际相对比例小于参考相对比例时，增 大所述均衡器的均衡补偿因子。 When the comparison result is that the actual relative ratio is less than the reference relative ratio, increase The equalization compensation factor of the equalizer.
- 根据权利要求2所述的控制电路，其特征在于，所述第一比 值电路，用于获取所述高频信号成分的功率相对所述中低频信号成 分的功率的实际相对比例；所述均衡控制器具体用于： The control circuit of claim 2 wherein said first ratio a value circuit for obtaining power of the high frequency signal component relative to the medium and low frequency signal The actual relative proportion of the divided power; the equalization controller is specifically used to:当所述比较结果大于预设区间的最大值时，减小所述均衡控制 器输出的均衡补偿因子；或， Decreasing the equalization control when the comparison result is greater than a maximum value of the preset interval Equilibrium compensation factor for the output of the device; or,当所述比较结果小于预设区间的最小值时，增大所述均衡控制 器输出的均衡补偿因子。 Increasing the equalization control when the comparison result is less than the minimum value of the preset interval The equalization compensation factor of the output of the device.
- 根据权利要求2所述的控制电路，其特征在于，所述第一滤 波器和/或所述第二滤波器为带通滤波器。 The control circuit of claim 2 wherein said first filter The waver and/or the second filter are band pass filters.
- 根据权利要求1所述的控制电路，其特征在于，所述相对比 例获取电路包括：第三滤波器、第三功率探测器、第四功率探测器 和第二比值电路；所述比值电路包括：第一输入端、第二输入端和 输出端； The control circuit of claim 1 wherein said relative ratio The example obtaining circuit includes: a third filter, a third power detector, and a fourth power detector And a second ratio circuit; the ratio circuit includes: a first input, a second input, and Output所述第三滤波器的输入端、所述第四功率探测器的输入端分别 与所述均衡器的输出端连接； An input end of the third filter and an input end of the fourth power detector respectively Connected to the output of the equalizer;所述第三滤波器的输出端与所述第三功率探测器的输入端连 接； An output of the third filter is coupled to an input of the third power detector Connect所述第三功率探测器的输出端与所述比较电路的第一输入端连 接；所述第四功率探测器的输出端与所述比较电路的第二输入端连 接； An output of the third power detector is coupled to the first input of the comparison circuit Connecting the output of the fourth power detector to the second input of the comparison circuit Connect所述第二比值电路的输出端与所述均衡控制器的输入端连接； An output of the second ratio circuit is coupled to an input of the equalization controller;所述第三滤波器，用于对所述均衡器的输出信号进行滤波，得 到高频信号成分； The third filter is configured to filter an output signal of the equalizer To high frequency signal components;所述第三功率探测器，用于检测所述高频信号成分的功率； The third power detector is configured to detect power of the high frequency signal component;所述第四功率探测器，用于检测所述均衡器的输出信号的功率； The fourth power detector is configured to detect a power of an output signal of the equalizer;所述第二比值电路，用于获取所述高频信号成分的功率相对所 述输出信号的功率的实际相对比例，或获取所述输出信号的功率相 对所述高频信号成分的功率的实际相对比例。 The second ratio circuit is configured to acquire a power relative to the high frequency signal component Describe the actual relative ratio of the power of the output signal, or obtain the power phase of the output signal The actual relative ratio of the power of the high frequency signal component.
- 根据权利要求1-6任一项所述的控制电路，其特征在于，所 述比较电路通过数字电路或模拟电路实现；和/或，所述均衡控制器 通过数字电路或模拟电路实现。 A control circuit according to any of claims 1-6, characterized in that The comparison circuit is implemented by a digital circuit or an analog circuit; and/or the equalization controller It is realized by digital circuits or analog circuits.
- 一种均衡器，其特征在于，包括：输入端、输出端和控制端； An equalizer, comprising: an input end, an output end, and a control end;所述输入端，用于接收输入信号； The input end is configured to receive an input signal;所述输出端，用于输出信号； The output terminal is configured to output a signal;所述控制端，用于接收控制电路输出的调节后的均衡补偿因子； 所述控制电路为上述权利要求1-7任一项所述的均衡器的控制电路。 The control end is configured to receive an adjusted equalization compensation factor output by the control circuit; The control circuit is a control circuit of the equalizer according to any one of claims 1 to 7.
- 一种光接收机，其特征在于，包括：光接收模块ROSA、均 衡器、控制所述均衡器的控制电路，以及限幅放大器LA；其中， An optical receiver, comprising: a light receiving module ROSA, both a weighing device, a control circuit for controlling the equalizer, and a limiting amplifier LA; wherein控制所述均衡器的控制电路为上述权利要求1-7任一项所述的 均衡器的控制电路； Control circuit for controlling the equalizer is according to any of the preceding claims 1-7 The control circuit of the equalizer;所述均衡器的输入端，用于接收所述ROSA的输出信号； An input end of the equalizer, configured to receive an output signal of the ROSA;所述均衡器的输出端与所述LA的输入端连接。 An output of the equalizer is coupled to an input of the LA.
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