CN207427124U - A kind of general local vibration source of receiver - Google Patents
A kind of general local vibration source of receiver Download PDFInfo
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- CN207427124U CN207427124U CN201721850723.6U CN201721850723U CN207427124U CN 207427124 U CN207427124 U CN 207427124U CN 201721850723 U CN201721850723 U CN 201721850723U CN 207427124 U CN207427124 U CN 207427124U
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Abstract
The utility model discloses a kind of general local vibration source of receiver, including reference clock circuit, electric power management circuit, output frequency control circuit, communication control circuit.Reference clock circuit can be realized according to practical application inside and outside clock reference switching, external clock reference input support 10MHz and 100MH, overcome external clock input unicity, and realize in External Reference it is homologous；The single power supply of power supply is realized in the setting of electric power management circuit, and adaptation voltage range is wide, avoids multi-group power while the unfavorable factor powered with input voltage limitation；The setting of phase-locked loop circuit can improve the spurious reduction for improving reference frequency, so as to ensure the spurious reduction of local vibration source output frequency, spuious difference that traditional approach can be overcome to be brought with DDS directly as reference frequency；Output frequency is covered from L-band to Ku wave bands, frequency resolution 1Hz, has the advantages that covering frequence is wide, frequency hopping stepping is small；The communication modes such as RS232, RS422, RS485, SPI are adapted to, realize communication mode diversity.
Description
Technical field
The utility model is related to the communications fields, particularly a kind of general local vibration source of receiver.
Background technology
Frequency source provides baseband signal source for electronic system, is the heart of modern radio-frequency and microwave electron system, property
Entire electronic system can be directly affected.There is the deficiencies of following aspect for traditional frequency source：External clock input mode is single,
Affect the applicability of frequency source；Multiple power sources is needed to power simultaneously, each power supply has input voltage limitation again, there is power supply
Complexity affects the reliability of power supply；Output frequency is narrow, and frequency coverage is small, affects the application range of communication equipment；
Communication mode is single, is not easy to host computer and controls it and monitor.
Utility model content
To solve the above-mentioned problems, the utility model proposes a kind of general local vibration source of receiver, output frequency is covered from L
Wave band is to Ku wave bands, frequency resolution 1Hz, has the advantages that covering frequence is wide, frequency hopping stepping is small, overcomes existing frequency source and supply
Electrically complicated, output frequency is narrow, communication mode and the single deficiency of external clock input mode, improves the performance of frequency source
Stability, function applicability and ease for use.
Specifically, the utility model proposes a kind of general local vibration sources of receiver, it is characterised in that：Including reference clock electricity
Road, electric power management circuit, output frequency control circuit, communication control circuit；
The output terminal of the reference clock circuit is connected with the input terminal of the output frequency control circuit, for providing ginseng
Examine clock signal；
The electric power management circuit is used to provide power supply for local vibration source；
The output frequency control circuit includes phaselocked loop and frequency divider, for controlling local vibration source output frequency；
The communication control circuit is connected with PERCOM peripheral communication circuit, and local vibration source is controlled for receiving signal of communication
System.
As an improvement the reference clock circuit includes：First coupler, the first attenuator, the first amplifier, inspection
Ripple device, comparator, phase discriminator, microcontroller, low-pass filter, low pressure difference linear voltage regulator, switch, constant-temperature crystal oscillator, the second coupling
Device, the second attenuator, the second amplifier, the 3rd attenuator；
External reference clock is inputted by the input terminal of first coupler；
First output terminal of first coupler connects the input terminal of first attenuator, second output terminal connection institute
State the signal input part of phase discriminator；
The first attenuator output terminal is connected to the input terminal of the wave detector, the inspection by first amplifier
The output terminal of ripple device is connected to the first input end of the comparator, and the second input terminal of the comparator connects a fixed electricity
Pressure, the output terminal of the comparator are connected to the control terminal of the switch, are achieved in the voltage for coming out detection and one solid
Constant voltage compares one level of output and goes to control the on-state of the switch；
The phase discriminator is controlled by the microcontroller, and the output terminal of the phase discriminator is connected to by the low-pass filter
The first input end of the switch, the output terminal of the low pressure difference linear voltage regulator are connected to the second input terminal of the switch,
The output terminal of the switch is connected to the input terminal of second coupler by the constant-temperature crystal oscillator, second coupler
First output terminal declines to follow-up circuit output reference clock signal, the second output terminal of second coupler by described second
Subtract the feedback input end that device, second amplifier, the 3rd attenuator are connected to the phase discriminator.
As an improvement the fixed frequency of the constant-temperature crystal oscillator is 100MHz, 10MHz or 100MHz external references are supported
Clock inputs.
As an improvement the electric power management circuit include the first power switch, second source switch, toggle switch,
Booster, reducing transformer, the first voltage-stablizer, the negative converter of rotating forward, the second voltage-stablizer；
The input terminal connection external voltage input of first power switch, the first output terminal of first power switch
The first input end of the second source switch is connected to, the second output terminal of first power switch passes through the booster
The second input terminal of the second source switch is connected to, the 3rd output terminal of first power switch passes through the reducing transformer
It is connected to the 3rd input terminal of the second source switch；
The toggle switch connects the control terminal of first power switch and second source switch respectively, passes through institute
Toggle switch output level is stated to control the on-state that first power switch and the second source switch, the dial-up
Switch is inputted by the external voltage and provides power supply；
The output terminal of the second source switch provides power supply positive electricity output by first voltage-stablizer for local vibration source；
The input terminal connection external voltage input for rotating forward negative converter, output terminal is this by second voltage-stablizer
Vibration source provides the output of power supply negative electricity.
As an improvement first power switch and described of being controlled by the toggle switch output level
The on-state of second source switch, specially：
When external input voltage is higher than+6V, by the toggle switch external voltage input is selected to pass through the decompression
Device, first voltage-stablizer are powered for local vibration source；
When external input voltage is between+5~+6V, external voltage input is selected by institute by the toggle switch
The first voltage-stablizer is stated to power for local vibration source；
When external input voltage is less than+5V, by the toggle switch external voltage input is selected to pass through the boosting
Device, first voltage-stablizer are powered for local vibration source.
As an improvement the output frequency control circuit includes phase-locked loop circuit, voltage controlled oscillator, the 3rd amplification
Device, the first RF switch, 1/2 frequency divider, the second RF switch, 1/4 frequency divider, the 3rd RF switch, 1/8 frequency divider, the 4th
RF switch, the 4th amplifier, numerical-control attenuator；
The input terminal of the phase-locked loop circuit connects the input of the reference clock signal, and output terminal voltage-controlled shakes by described
Swing device, the 3rd amplifier is connected to the input terminal of first RF switch, the voltage controlled oscillator is to the phaselocked loop
Circuit output feedback control signal；
First output terminal of first RF switch is connected to second RF switch by 1/2 frequency divider
First input end, the second output terminal of first RF switch is connected to the second input terminal of second RF switch, described
First output terminal of the second RF switch is connected to the first input end of the 3rd RF switch by 1/4 frequency divider,
The second output terminal of second RF switch is connected to the second input terminal of the 3rd RF switch, and the 3rd radio frequency is opened
The first output terminal closed is connected to the first input end of the 4th RF switch by 1/8 frequency divider, and the described 3rd penetrates
The second output terminal of frequency switch is connected to the second input terminal of the 4th RF switch；
The output terminal of 4th RF switch is carried by the 4th amplifier, the numerical-control attenuator for external circuit
For local frequency source signal.
As an improvement the phase-locked loop circuit uses Direct Digital Synthesizer+harmonic oscillator+lock phase
The mode of ring realizes that reference frequency is generated by the output frequency of the Direct Digital Synthesizer with the harmonic oscillator
Frequency by frequency mixer and wave filter frequency divider is being added to generate.
As an improvement the reference frequency output as obtained by controlling the voltage controlled oscillator is 10GHz~20GHz；
Further the reference frequency output as obtained by controlling each frequency divider is 1GHz~10GHz；The covering of local vibration source output frequency
From L-band to Ku wave bands.
As an improvement the communication control circuit includes FPGA module；The FPGA module by communication interface with
PERCOM peripheral communication circuit connects, and passes through logic level output port and local vibration source is controlled.
As an improvement the communication interface includes one or more communications in RS232, RS422, RS485, SPI
Interface, the type of the communication interface match with selected communication mode.
The beneficial effects of the utility model are：
1. reference clock circuit can provide 100MHz reference signals, can be realized according to practical application inside and outside clock reference
Switching, external clock reference input support 10MHz and 100MH, overcome the unicity of external clock input, and realize inside and outside
With reference to homologous；
2. the setting of electric power management circuit realizes the single power supply of power supply, adaptation voltage range is wide, avoids multi-group power
Power supply simultaneously and the unfavorable factor of input voltage limitation；
3. the setting of phase-locked loop circuit can improve the spurious reduction for improving reference frequency, so as to ensure that local vibration source exports
The spurious reduction of frequency, the spuious difference that traditional approach can be overcome to be brought with DDS directly as reference frequency；
4. output frequency is covered from L-band to Ku wave bands, frequency resolution 1Hz, have that covering frequence is wide, frequency hopping stepping is small
The advantages of；
5. being adapted to the communication modes such as RS232, RS422, RS485, SPI, communication mode diversity is realized.
Description of the drawings
Fig. 1 is the reference clock circuit diagram of the utility model.
Fig. 2 is the electric power management circuit schematic diagram of the utility model.
Fig. 3 is the output frequency control circuit schematic diagram of the utility model.
Fig. 4 is the communication control circuit schematic diagram of the utility model.
Specific embodiment
For a clearer understanding of the technical features, objectives and effects of the utility model, existing control description of the drawings
Specific embodiment of the present utility model.
A kind of general local vibration source of receiver, including reference clock circuit, electric power management circuit, output frequency control circuit,
Communication control circuit.
Reference clock circuit is as shown in Figure 1, including constant-temperature crystal oscillator, phase discriminator, wave detector, amplifier, LDO, coupler, ratio
Compared with device, low-pass filter, switch, microcontroller.External Reference clock is divided into two by the first coupler, all the way into phase discriminator, one
Road inputs detector after attenuator, amplifier, can change input detection by adjusting the size of attenuator pad value
So as to change the voltage value for coming out detection, the voltage that detection comes out compares defeated the power of the signal of device with a fixed voltage
Going out a low and high level goes control to switch.When no External Reference clock inputs, comparator output voltage is low control switch choosing
Select LDO（Low pressure difference linear voltage regulator）Output voltage；When there is the input of External Reference clock, comparator output voltage is opened for high control
Close selection phase discriminator CP ends output voltage.Constant-temperature crystal oscillator signal is divided into two by the second coupler, and output all the way is locked for next stage
Phase loop circuit provides reference clock, is passing through attenuator to phase discriminator by amplifier by attenuator all the way.So as to reach
Interior External Reference is homologous.
Wherein, the fixed frequency of constant-temperature crystal oscillator is 100MHz, and reference clock circuit can provide 100MHz reference signals, can be with
According to practical application realize inside and outside clock reference switching, external clock reference input support 10MHz and 100MH, overcome outside
The unicity of clock input.
Electric power management circuit as shown in Fig. 2, including two-stage power switch, toggle switch, booster, reducing transformer, voltage-stablizer,
Rotate forward negative converter.Input voltage is divided into three tunnels, and the first via is powered for toggle switch, and the second tunnel is by controlling toggle switch to export
Level controls the power switch selection is gone to be input to the circuit passed through among positive electricity output from external voltage, and the 3rd tunnel is by rotating forward
Negative converter, voltage-stablizer provide negative electricity for general local vibration source.When external input voltage is higher than+6V, selected by toggle switch
External voltage input is powered by reducing transformer, voltage-stablizer for local vibration source；When external input voltage is between+5~+6V, pass through
Toggle switch selects external voltage input to power by voltage-stablizer for local vibration source；When external input voltage is less than+5V, by dialling
Code switch selects external voltage input to power by booster, voltage-stablizer for local vibration source.It is thus achieved that the single power supply of power supply, is fitted
It answers voltage range wide, avoids multi-group power while the unfavorable factor powered with input voltage limitation.
Output frequency control circuit including phase-locked loop circuit, voltage controlled oscillator, amplifier, 4 radio frequencies as shown in figure 3, open
Pass, 4 set of division devices, numerical-control attenuator.Phase-locked loop circuit is realized by the way of DDS+ harmonic oscillators+phaselocked loop.With reference to
Frequency is by frequency mixer and wave filter frequency divider to be added to be produced with the frequency that the harmonic oscillator generates by DDS output frequencies
It is raw.Thus the spurious reduction of reference frequency is improved, so as to ensure the spurious reduction of local vibration source output frequency, tradition side can be overcome
The spuious difference that formula is brought with DDS directly as reference frequency.
By VCO in output frequency control circuit（Voltage controlled oscillator）Reference frequency output obtained by controlling for 10GHz~
20GHz；Reference frequency output obtained by further as each frequency divider except 2, except 4, except 8, except 16 is 1GHz~10GHz, from
And make the covering of local frequency source of secondary output frequency from L-band to Ku wave bands.
Communication control circuit as shown in figure 4, communication control circuit include FPGA module, pass through communication interface and PERCOM peripheral communication
Connection, and pass through logic level output port and local vibration source is controlled.Wherein, communication interface include RS232, RS422,
RS485, SPI it is possible thereby to adapt to the communication modes such as RS232, RS422, RS485, SPI, realize communication mode diversity.
Above disclosed is only the utility model preferred embodiment, cannot limit the utility model with this certainly
Interest field, therefore equivalent variations made according to the utility model claims still belong to the scope that the utility model is covered.
Claims (10)
1. a kind of general local vibration source of receiver, it is characterised in that：Including reference clock circuit, electric power management circuit, output frequency
Control circuit, communication control circuit；
The output terminal of the reference clock circuit is connected with the input terminal of the output frequency control circuit, during for providing reference
Clock signal；
The electric power management circuit is used to provide power supply for local vibration source；
The output frequency control circuit includes phaselocked loop and frequency divider, for controlling local vibration source output frequency；
The communication control circuit is connected with PERCOM peripheral communication circuit, and local vibration source is controlled for receiving signal of communication.
2. a kind of general local vibration source of receiver as described in claim 1, it is characterised in that：The reference clock circuit includes：
First coupler, the first attenuator, the first amplifier, wave detector, comparator, phase discriminator, microcontroller, low-pass filter, low pressure
Difference linear constant voltage regulator, switch, constant-temperature crystal oscillator, the second coupler, the second attenuator, the second amplifier, the 3rd attenuator；
External reference clock is inputted by the input terminal of first coupler；
First output terminal of first coupler connects the input terminal of first attenuator, and second output terminal connects the mirror
The signal input part of phase device；
The first attenuator output terminal is connected to the input terminal of the wave detector, the wave detector by first amplifier
Output terminal be connected to the first input end of the comparator, the second input terminal of the comparator connects a fixed voltage,
The output terminal of the comparator is connected to the control terminal of the switch, is achieved in the voltage for coming out detection and a fixed electricity
Pressure compares one level of output and goes to control the on-state of the switch；
The phase discriminator is controlled by the microcontroller, and the output terminal of the phase discriminator is connected to described by the low-pass filter
The first input end of switch, the output terminal of the low pressure difference linear voltage regulator is connected to the second input terminal of the switch, described
The output terminal of switch is connected to the input terminal of second coupler by the constant-temperature crystal oscillator, and the first of second coupler
Output terminal is to follow-up circuit output reference clock signal, and the second output terminal of second coupler is by the described second attenuation
Device, second amplifier, the 3rd attenuator are connected to the feedback input end of the phase discriminator.
3. a kind of general local vibration source of receiver as claimed in claim 2, it is characterised in that：The fixed frequency of the constant-temperature crystal oscillator
For 100MHz, the input of 10MHz or 100MHz external references clock is supported.
4. a kind of general local vibration source of receiver as described in claim 1, it is characterised in that：The electric power management circuit includes the
One power switch, second source switch, toggle switch, booster, reducing transformer, the first voltage-stablizer, the negative converter of rotating forward, second are surely
Depressor；
The input terminal connection external voltage input of first power switch, the first output terminal connection of first power switch
In the first input end of second source switch, the second output terminal of first power switch is connected by the booster
In the second input terminal of second source switch, the 3rd output terminal of first power switch is connected by the reducing transformer
In the 3rd input terminal of second source switch；
The toggle switch connects the control terminal of first power switch and second source switch respectively, passes through described group
Code switch output level controls the on-state that first power switch and the second source switch, the toggle switch
It is inputted by the external voltage and power supply is provided；
The output terminal of the second source switch provides power supply positive electricity output by first voltage-stablizer for local vibration source；
The input terminal connection external voltage input for rotating forward negative converter, output terminal is local vibration source by second voltage-stablizer
The output of power supply negative electricity is provided.
5. a kind of general local vibration source of receiver as claimed in claim 4, it is characterised in that：It is described defeated by the toggle switch
Go out level to control the on-state that first power switch and the second source switch, be specially：
When external input voltage is higher than+6V, external voltage input is selected by the reducing transformer, institute by the toggle switch
The first voltage-stablizer is stated to power for local vibration source；
When external input voltage is between+5~+6V, external voltage input is selected by described the by the toggle switch
One voltage-stablizer is powered for local vibration source；
When external input voltage is less than+5V, external voltage input is selected by the booster, institute by the toggle switch
The first voltage-stablizer is stated to power for local vibration source.
6. a kind of general local vibration source of receiver as described in claim 1, it is characterised in that：The output frequency control circuit bag
Include phase-locked loop circuit, voltage controlled oscillator, the 3rd amplifier, the first RF switch, 1/2 frequency divider, the second RF switch, 1/4 point
Frequency device, the 3rd RF switch, 1/8 frequency divider, the 4th RF switch, the 4th amplifier, numerical-control attenuator；
The input terminal of the phase-locked loop circuit connects the input of the reference clock signal, and output terminal passes through the voltage controlled oscillation
Device, the 3rd amplifier are connected to the input terminal of first RF switch, and the voltage controlled oscillator is to phaselocked loop electricity
Road output feedback ontrol signal；
First output terminal of first RF switch is connected to the first of second RF switch by 1/2 frequency divider
Input terminal, the second output terminal of first RF switch are connected to the second input terminal of second RF switch, and described second
First output terminal of RF switch is connected to the first input end of the 3rd RF switch by 1/4 frequency divider, described
The second output terminal of second RF switch is connected to the second input terminal of the 3rd RF switch, the 3rd RF switch
First output terminal is connected to the first input end of the 4th RF switch by 1/8 frequency divider, and the 3rd radio frequency is opened
The second output terminal of pass is connected to the second input terminal of the 4th RF switch；
The output terminal of 4th RF switch provides this by the 4th amplifier, the numerical-control attenuator for external circuit
Vibration frequency source signal.
7. a kind of general local vibration source of receiver as described in claim 1, it is characterised in that：The phase-locked loop circuit is using straight
The mode for connecing digital frequency synthesizer+harmonic oscillator+phaselocked loop realizes that reference frequency is closed by the Direct Digital frequency
The frequency that the output frequency grown up to be a useful person is generated with the harmonic oscillator is by frequency mixer and wave filter produced by frequency divider is added.
8. a kind of general local vibration source of receiver as claimed in claim 6, it is characterised in that：It can by voltage controlled oscillator control
The reference frequency output of acquisition is 10GHz~20GHz；Further the reference frequency output as obtained by controlling each frequency divider is
1GHz~10GHz；The covering of local vibration source output frequency is from L-band to Ku wave bands.
9. a kind of general local vibration source of receiver as described in claim 1, it is characterised in that：The communication control circuit includes
FPGA module；The FPGA module is connected by communication interface with PERCOM peripheral communication circuit, and passes through logic level output port pair
Local vibration source is controlled.
10. a kind of general local vibration source of receiver as claimed in claim 9, it is characterised in that：The communication interface includes
One or more communication interfaces in RS232, RS422, RS485, SPI, the type of the communication interface and selected communication party
Formula matches.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721850723.6U CN207427124U (en) | 2017-12-26 | 2017-12-26 | A kind of general local vibration source of receiver |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721850723.6U CN207427124U (en) | 2017-12-26 | 2017-12-26 | A kind of general local vibration source of receiver |
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| Publication Number | Publication Date |
|---|---|
| CN207427124U true CN207427124U (en) | 2018-05-29 |
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| CN201721850723.6U Active CN207427124U (en) | 2017-12-26 | 2017-12-26 | A kind of general local vibration source of receiver |
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- 2017-12-26 CN CN201721850723.6U patent/CN207427124U/en active Active
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