CN205622603U - High dynamic range proruption mode transimpedance amplifier - Google Patents
High dynamic range proruption mode transimpedance amplifier Download PDFInfo
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- CN205622603U CN205622603U CN201620511694.XU CN201620511694U CN205622603U CN 205622603 U CN205622603 U CN 205622603U CN 201620511694 U CN201620511694 U CN 201620511694U CN 205622603 U CN205622603 U CN 205622603U
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Abstract
High dynamic range proruption mode transimpedance amplifier. A transimpedance amplifier that four kinds of proruption modes that have high dynamic range of is related to. There is the problem that the low frequency is less by frequency and dynamic, sensitivity is low in order to solve current transimpedance amplifier. The power of collecting electrode and passive optical network local side receiver of no. Four triodes link to each other, the projecting pole of no. Four triodes connects gradually the collecting electrode of no. Four resistance, a triode, the projecting pole of no. Two triodes links to each other with no. Six resistance and no. Two resistance simultaneously, no. Two resistance links to each other with the anodal of an electric current source and no. Three resistance simultaneously, the base and the collecting electrode of no. Three triodes are continuous with the base of a triode simultaneously, projecting pole and no. Three resistance of no. Three triodes link to each other, and no. Two resistance links to each other with the anodal of an electric current source and no. Three resistance simultaneously. Beneficial effect by the frequency, has sufficient phase margin for there not being the low frequency, and response speed is fast, and the sensitivity is higher. Be applicable to passive optical network local side receiver.
Description
Technical field
The utility model relates to four kinds of trans-impedance amplifiers with the burst mode of HDR.
Background technology
In the application of passive optical network PON, local side receiver OLT needs timesharing to receive user side signal, due to each use
Family end and the distance difference of local side, the signal amplitude causing local side to receive has larger difference in different time sections, and this requires
Local side operation of receiver is at burst mode；And in order to improve efficiency of transmission, burst is all subject to stabilization time in various agreements
Strict restriction.Burst mode trans-impedance amplifier Burst mode TIA is an important component part of PON OLT, it
Design needs to weigh between the parameters such as noise, bandwidth, gain, sensitivity, dynamic range and response time, to setting
Meter teacher proposes stern challenge.
As it is shown in figure 1, conventional trans-impedance amplifier is by triode Q1, triode Q2, resistance R1, resistance RF, voltage
Source VDC1With current source IDC1Composition.Resistance R1One end be connected with the power end of PON OLT；Resistance R1The other end
Simultaneously with triode Q1Colelctor electrode, triode Q2Base stage photoelectricity be connected with voltage output end VOUT；Diode is
External photodiode, it is converted to current signal optical signal, the negative electrode of photodiode and photodiode cathode voltage
Input terminal is connected；The anode of photodiode simultaneously with triode Q1Base stage and resistance RFOne end be connected；Triode
Q2Colelctor electrode be connected with the power end of PON OLT；Triode Q2Emitter stage simultaneously with resistance RFThe other end and electricity
Stream source IDC1Positive pole be connected；Current source IDC1Negative pole be connected with the earth terminal of PON OLT；Triode Q1Transmitting
Pole and voltage source VDC1Positive pole be connected；Voltage source VDC1Negative pole be connected with the earth terminal of PON OLT；Triode Q2
Emitter stage and resistance RFThe other end, current source IDC1Positive pole intersect node be VS1.The electricity of this trans-impedance amplifier
Stream signal feeds back to resistance R by all flowing throughFOn, and at node VS1Produce voltage signal with voltage output end VOUT；
So current signal is bigger, node VS1Voltage lower, as node VS1Brownout when can cause current source
IDC1Saturated, and then cause the dynamic range of this trans-impedance amplifier less.
Existing technology, in order to increase the dynamic range of conventional trans-impedance amplifier, uses the method that direct current recovers, as in figure 2 it is shown,
By amplifier AMP1, resistance R0, electric capacity C0With triode Q2Extract the DC component of input current；Conventional across resistance
On the basis of amplifier, amplifier AMP1Electrode input end simultaneously anode, the resistance R with photodiodeFOne end,
Triode Q1Base stage and triode Q3Colelctor electrode be connected；Amplifier AMP1Negative input be connected to node VS1
With triode Q2Emitter stage between；Amplifier AMP1Output and resistance R0One end be connected；Resistance R0Another
With electric capacity C while end0One end and triode Q3Base stage be connected；Electric capacity C0The earth terminal of the other end and PON OLT
It is connected；Triode Q3Emitter stage be connected with the earth terminal of PON OLT.The trans-impedance amplifier that this band direct current recovers exists
Low frequency by frequency as it is shown on figure 3, so the joined mark number in signal pattern not can exceed that certain value, and due to R0And C0
There is certain discharge and recharge time in the low-pass network of composition, causes the insufficient sensitivity of the trans-impedance amplifier that this band direct current recovers.
Utility model content
The purpose of this utility model be in order to solve existing trans-impedance amplifier exist low frequency less by frequency and dynamic range,
The low problem of sensitivity, proposes four kinds of HDR burst mode trans-impedance amplifiers.
The utility model provide the first HDR burst mode trans-impedance amplifier, it include a triode, No. two
Triode, resistance, No. six resistance, photodiode, photodiode cathode voltage input-terminal, voltage sources and
Number current source；One end of a number resistance is connected with the power end of passive optical network local side receiver；The other end of a number resistance is same
The base stage of the colelctor electrode of Shi Yuyi triode and No. two triodes connects, and tie point is as voltage output end；Photodiode
Negative electrode be connected with photodiode cathode voltage input-terminal；The anode of the photodiode base stage with a triode simultaneously
It is connected with one end of No. six resistance；The colelctor electrode of No. two triodes is connected with the power end of passive optical network local side receiver；One
The negative pole of number current source is connected with the earth terminal of passive optical network local side receiver；The emitter stage of a number triode and voltage source
Positive pole is connected；The negative pole of voltage source is connected with the earth terminal of passive optical network local side receiver；
It also includes that loop phase nargin compensates circuit and dynamic auto gain control circuit；
Described loop phase nargin compensates circuit and includes No. four triodes and No. four resistance；
The base stage of No. four triodes is No. two nodes, and the voltage of No. two nodes is used for ensureing that loop phase nargin compensates circuit work
When be in stable state；The colelctor electrode of No. four triodes is connected with the power end of passive optical network local side receiver；No. four three poles
One end of the emitter stage of pipe and No. four resistance is connected；The colelctor electrode of the other end of No. four resistance and a triode is connected；
Described dynamic auto gain control circuit includes No. three triodes, No. two resistance and No. three resistance；
The emitter stage of No. two triodes is connected with the other end of No. six resistance and one end of No. two resistance simultaneously, connects node conduct
A number node；The other end of No. two resistance is connected with the positive pole of a current source and one end of No. three resistance simultaneously；
The base stage of No. three triodes is connected with the base stage of a triode with colelctor electrode simultaneously；The emitter stage of No. three triodes and three
The other end of number resistance is connected.
The utility model additionally provides the second HDR burst mode trans-impedance amplifier, and the second HDR happens suddenly
Pattern trans-impedance amplifier is on the basis of the first HDR burst mode trans-impedance amplifier, uses a metal-oxide-semiconductor
Replace No. four triodes；No. two metal-oxide-semiconductors are used to replace No. three triodes；
The grid of a number metal-oxide-semiconductor is No. two nodes, the electricity of the source electrode of a metal-oxide-semiconductor and passive optical network local side receiver
Source is connected；The drain electrode of a number metal-oxide-semiconductor is connected with one end of No. four resistance；
The grid of No. two metal-oxide-semiconductors is connected with the base stage of a triode with source electrode simultaneously；The drain electrode of No. two metal-oxide-semiconductors and three
The other end of number resistance is connected.
The utility model additionally provides the third HDR burst mode trans-impedance amplifier, it include a triode, two
Number triode, resistance, No. six resistance, photodiode, photodiode cathode voltage input-terminal and voltage source；
One end of a number resistance is connected with the power end of passive optical network local side receiver；The other end of a number resistance simultaneously with No. one three
The base stage of the colelctor electrode of pole pipe and No. two triodes connects, and tie point is as voltage output end；The negative electrode of photodiode and light
Electric diode cathode voltage input terminal is connected；The anode of photodiode base stage and No. six resistance with a triode simultaneously
One end be connected；The colelctor electrode of No. two triodes is connected with the power end of passive optical network local side receiver；A number triode
Emitter stage is connected with the positive pole of voltage source；The negative pole of voltage source is connected with the earth terminal of passive optical network local side receiver；
It also includes that loop phase nargin compensates circuit, dynamic auto gain control circuit and biasing circuit；
Described loop phase nargin compensates circuit and includes No. four triodes and No. four resistance；
Described dynamic auto gain control circuit includes No. three triodes, No. two resistance and No. three resistance；
Described biasing circuit include No. five triodes, No. six triodes, No. seven triodes, No. eight triodes, No. nine triodes,
No. ten triodes, ride on Bus No. 11 triode, ten No. two triodes, a current source and No. five resistance；
The base stage of No. four triodes is No. two nodes, and the voltage of No. two nodes is used for ensureing that loop phase nargin compensates circuit work
When be in stable state；The colelctor electrode of No. four triodes is connected with the power end of passive optical network local side receiver；No. four three poles
One end of the emitter stage of pipe and No. four resistance is connected；The colelctor electrode of the other end of No. four resistance and a triode is connected；
The emitter stage of No. two triodes is connected with the other end of No. six resistance and one end of No. two resistance simultaneously, connects node conduct
A number node；
The base stage of No. three triodes is connected with the base stage of a triode with colelctor electrode simultaneously；The emitter stage of No. three triodes and three
One end of number resistance is connected；The other end of the other end of No. three resistance and No. two resistance connects；
The common port of the colelctor electrode of No. five triodes and No. three resistance and No. two resistance is connected；The emitter stage of No. five triodes and nothing
The earth terminal of source optical network local side receiver is connected；
The positive pole of a number current source is connected with the power end of passive optical network local side receiver；The negative pole of a number current source simultaneously with
The base stage of No. five triodes, the base stage of No. six triodes, the base stage of No. seven triodes are connected with the colelctor electrode of No. seven triodes；
The earth terminal phase all with passive optical network local side receiver for the emitter stage of the emitter stage of No. six triodes and No. seven triodes
Even；The colelctor electrode of No. six triodes simultaneously with the colelctor electrode of No. eight triodes, the base stage of No. eight triodes and No. nine triodes
Base stage is connected；
The power end phase all with passive optical network local side receiver for the emitter stage of the emitter stage of No. eight triodes and No. nine triodes
Even；
The colelctor electrode of No. nine triodes is connected with one end of No. two nodes and No. five resistance simultaneously；
The base stage that the other end of No. five resistance is simultaneously connected with ten No. two triodes is connected with the colelctor electrode of ten No. two triodes；
The emitter stage of ten No. two triodes is connected with the base stage of ride on Bus No. 11 triode and the colelctor electrode of ride on Bus No. 11 triode simultaneously；
The emitter stage of ride on Bus No. 11 triode is connected with the base stage of No. ten triodes and the colelctor electrode of No. ten triodes simultaneously；
The emitter stage of No. ten triodes is connected with the earth terminal of passive optical network local side receiver.
The utility model additionally provides the 4th kind of HDR burst mode trans-impedance amplifier, the 4th kind of HDR burst
Pattern trans-impedance amplifier is on the basis of the third HDR burst mode trans-impedance amplifier, use No. two current sources and
Ten No. three triodes replace voltage source；
The positive pole of No. two current sources is connected with the power end of passive optical network local side receiver；
The negative pole of No. two current sources is connected with the colelctor electrode of ten No. three transistor bases and ten No. three triodes simultaneously；
The emitter stage of the colelctor electrode of ten No. three triodes and a triode is connected；
The emitter stage of ten No. three triodes is connected with the earth terminal of passive optical network local side receiver；
Described ten No. three triodes are NPN type triode.
The beneficial effects of the utility model are in four kinds of HDR burst mode trans-impedance amplifiers that the utility model provides
Dynamic auto gain control circuit all ensure that the small-signal gain of this trans-impedance amplifier, there is not low frequency by frequency；Increase
The overload current of this trans-impedance amplifier, it is achieved that the HDR of this trans-impedance amplifier, loop phase nargin compensates circuit
Achieve and loop compensation is carried out to dynamic auto gain control circuit, maintain the enough phase margins of this trans-impedance amplifier；And
And this trans-impedance amplifier does not needs DC restoration circuit, so having very fast response speed, sensitivity is higher；The third
The biasing circuit of HDR burst mode trans-impedance amplifier ensure that under different process, compensates loop phase nargin
Circuit is biased.
The utility model is applicable to passive optical network local side receiver.
Brief description
Fig. 1 is the circuit connection diagram of trans-impedance amplifier conventional in background technology；
Fig. 2 is the circuit connection diagram across conventional trans-impedance amplifier using DC restoration circuit in background technology；
Fig. 3 is the amplitude versus frequency characte schematic diagram of the trans-impedance amplifier using DC restoration circuit in background technology；
Fig. 4 is the HDR burst mode trans-impedance amplifier connection diagram described in detailed description of the invention one；
Fig. 5 is the HDR burst mode trans-impedance amplifier connection diagram described in detailed description of the invention three；
Fig. 6 is the HDR burst mode trans-impedance amplifier connection diagram described in detailed description of the invention five；
Fig. 7 is the HDR burst mode trans-impedance amplifier connection diagram described in detailed description of the invention seven；
Fig. 8 is the HDR burst mode trans-impedance amplifier amplitude versus frequency characte schematic diagram described in detailed description of the invention one；
Fig. 9 be the HDR burst mode trans-impedance amplifier described in detailed description of the invention one output voltage and across resistance with
The curve of input current change；
Figure 10 is the loop phase when 25 DEG C for the HDR burst mode trans-impedance amplifier described in detailed description of the invention five
The curve map that nargin changes with input current；
Figure 11 is the loop phase when 110 DEG C for the HDR burst mode trans-impedance amplifier described in detailed description of the invention five
The curve map that position nargin changes with input current.
Detailed description of the invention
Detailed description of the invention one: combine Fig. 4, Fig. 8 and Fig. 9 and present embodiment is described, the height described in present embodiment moves
State scope burst mode trans-impedance amplifier, in the present embodiment, it includes a triode Q1, No. two triode Q2、
A number resistance R1, No. six resistance R6, photodiode the 3rd, photodiode cathode voltage input-terminal the 4th, voltage source VDC1
With a current source IDC1；A number resistance R1One end be connected with the power end VDD of passive optical network local side receiver；One
Number resistance R1The other end simultaneously with a triode Q1Colelctor electrode and No. two triode Q2Base stage connect, tie point
As voltage output end VOUT；The negative electrode of photodiode 3 is connected with photodiode cathode voltage input-terminal 4；
The anode of photodiode 3 simultaneously with a triode Q1Base stage and No. six resistance R6One end be connected；No. two triodes
Q2Colelctor electrode be connected with the power end VDD of passive optical network local side receiver；A number current source IDC1Negative pole with passive
The earth terminal GND of optical network local side receiver is connected；A number triode Q1Emitter stage and voltage source VDC1Positive pole phase
Even；Voltage source VDC1Negative pole be connected with the earth terminal GND of passive optical network local side receiver；
It also includes that loop phase nargin compensates circuit 1 and dynamic auto gain control circuit 2；
Described loop phase nargin compensates circuit 1 and includes No. four triode Q4With No. four resistance R4；Loop phase nargin compensates
Circuit 1 is for realizing carrying out loop compensation to dynamic auto gain control circuit 2；
No. four triode Q4Base stage be No. two node VB1, No. two node VB1Voltage be used for ensureing loop phase nargin
Compensate when circuit 1 works and be in stable state；No. four triode Q4The electricity of colelctor electrode and passive optical network local side receiver
Source VDD is connected；No. four triode Q4Emitter stage and No. four resistance R4One end be connected；No. four resistance R4Another
End and a triode Q1Colelctor electrode be connected；
Described dynamic auto gain control circuit 2 includes No. three triode Q3, No. two resistance R2With No. three resistance R3；Dynamically
Automatic gain control circuit 2 is for realizing the HDR of this trans-impedance amplifier；
No. two triode Q2Emitter stage simultaneously with No. six resistance R6The other end and No. two resistance R2One end connect, even
Contact is as a node VS1；No. two resistance R2The other end simultaneously with a current source IDC1Positive pole and No. three resistance
R3One end be connected；No. two resistance R2For adjusting the firing current of dynamic auto gain control circuit 2；
No. three triode Q3Base stage and colelctor electrode simultaneously with a triode Q1Base stage be connected；No. three triode Q3's
Emitter stage and No. three resistance R3The other end be connected.
A kind of HDR burst mode trans-impedance amplifier described in present embodiment, arranges No. two resistance R2Both end voltage
Less than No. three triode Q3Cut-in voltage VTH, then when input current is zero, due to No. six resistance R6Both end voltage is
Zero, No. three triode Q3Conducting voltage VBEEqual to No. two resistance R2Both end voltage, No. three triode Q3With No. three electricity
Resistance R3Electric current is not had to flow through, when input current starts from scratch increase, No. six resistance R6Both end voltage increases, when No. six electricity
Resistance R6Both end voltage and No. two resistance R2Both end voltage sum is more than No. three triode Q3Cut-in voltage VTHWhen, by three
Number triode Q3With No. three resistance R3The dynamic of composition is started working across resistance unit, and equivalence reduces across resistance.
Employ the device with dynamic auto gain control circuit 2 same type owing to loop phase nargin compensates circuit 1, and
And after work, loop phase nargin compensation circuit 1 has similar impedance operator with dynamic auto gain control circuit 2, so energy
Enough ensure that this trans-impedance amplifier can have preferable phase margin in wide dynamic range.
According to carrying out amplitude versus frequency characte emulation to this trans-impedance amplifier, as shown in Figure 8, can determine that this trans-impedance amplifier does not exists
Low frequency is by frequency；
According to entering line output voltage to this trans-impedance amplifier and across resistance with input current change emulation, as it is shown in figure 9, can be true
Determining initially to be arranged on 850 Ω across resistance, when input current increases to 300 μ A, loop phase nargin compensates circuit 1 and moves
State automatic gain control circuit 2 is started working, and flows through No. three triode Q3With No. four triode Q4Electric current start increase,
Begin to decline across resistance resistance, when input current increases to 1mA, flow through No. three triode Q3With No. four triode Q4's
The impedance of current equivalence and No. three resistance R3With No. four resistance R4Resistance compare and be ignored, now do not declining across resistance, this
When across resistance resistance be No. two resistance R2With No. three resistance R3Sum.
Detailed description of the invention two: present embodiment is that the HDR burst mode described in detailed description of the invention one is across resistance
Amplifier further explains, in the present embodiment, and a described triode Q1, No. two triode Q2, No. three three
Pole pipe Q3With No. four triode Q4It is NPN type triode.
Detailed description of the invention three: combine Fig. 5 and present embodiment is described, present embodiment is described in detailed description of the invention one
HDR burst mode trans-impedance amplifier on the basis of be replaced, in the present embodiment, use a metal-oxide-semiconductor
M1Replace No. four triode Q4；Use No. two metal-oxide-semiconductor M2Replace No. three triode Q3；
A number metal-oxide-semiconductor M1Grid be No. two node VB1, a metal-oxide-semiconductor M1Source electrode and passive optical network local side
The power end VDD of receiver is connected；A number metal-oxide-semiconductor M1Drain electrode and No. four resistance R4One end be connected；
No. two metal-oxide-semiconductor M2Grid and source electrode simultaneously with a triode Q1Base stage be connected；No. two metal-oxide-semiconductor M2
Drain electrode and No. three resistance R3The other end be connected.
As long as ensureing that loop phase nargin compensates circuit 1 and has similar impedance operator with dynamic auto gain control circuit 2, should
Trans-impedance amplifier just can normally work.
Detailed description of the invention four: present embodiment is that the HDR burst mode described in detailed description of the invention three is across resistance
Amplifier limits further, in the present embodiment, and a described metal-oxide-semiconductor M1With No. two metal-oxide-semiconductor M2It is N-type
Metal-oxide-semiconductor.
Detailed description of the invention five: combine Fig. 6, Figure 10 and Figure 11 and present embodiment is described, the height described in present embodiment moves
State scope burst mode trans-impedance amplifier, it includes a triode Q1, No. two triode Q2, a resistance R1, No. six
Resistance R6, photodiode the 3rd, photodiode cathode voltage input-terminal 4 and voltage source VDC1；A number resistance R1's
One end is connected with the power end VDD of passive optical network local side receiver；A number resistance R1The other end simultaneously with No. one three
Pole pipe Q1Colelctor electrode and No. two triode Q2Base stage connect, tie point is as voltage output end VOUT；Photoelectricity two pole
The negative electrode of pipe 3 is connected with photodiode cathode voltage input-terminal 4；The anode of photodiode 3 simultaneously with three poles
Pipe Q1Base stage and No. six resistance R6One end be connected；No. two triode Q2Colelctor electrode and passive optical network local side receive
The power end VDD of machine is connected；A number triode Q1Emitter stage and voltage source VDC1Positive pole be connected；Voltage source VDC1
Negative pole be connected with the earth terminal GND of passive optical network local side receiver；
It also includes that loop phase nargin compensates circuit the 1st, dynamic auto gain control circuit 2 and biasing circuit 5；
Described loop phase nargin compensates circuit 1 and includes No. four triode Q4With No. four resistance R4；
Described dynamic auto gain control circuit 2 includes No. three triode Q3, No. two resistance R2With No. three resistance R3；
Described biasing circuit 5 includes No. five triode Q5, No. six triode Q6, No. seven triode Q7, No. eight triodes
Q8, No. nine triode Q9, No. ten triode Q10, ride on Bus No. 11 triode Q11, ten No. two triode Q12, an electric current
Source IDC1With No. five resistance R5；
No. four triode Q4Base stage be No. two node VB1, No. two node VB1Voltage be used for ensureing loop phase nargin
Compensate when circuit 1 works and be in stable state；No. four triode Q4The electricity of colelctor electrode and passive optical network local side receiver
Source VDD is connected；No. four triode Q4Emitter stage and No. four resistance R4One end be connected；No. four resistance R4Another
End and a triode Q1Colelctor electrode be connected；
No. two triode Q2Emitter stage simultaneously with No. six resistance R6The other end and No. two resistance R2One end connect, even
Connect node as a node VS1；
No. three triode Q3Base stage and colelctor electrode simultaneously with a triode Q1Base stage be connected；No. three triode Q3's
Emitter stage and No. three resistance R3One end be connected；No. three resistance R3The other end and No. two resistance R2The other end connect；
No. five triode Q5Colelctor electrode and No. three resistance R3With No. two resistance R2Common port be connected；No. five triode Q5
Emitter stage be connected with the earth terminal GND of passive optical network local side receiver；
A number current source IDC1Positive pole be connected with the power end VDD of passive optical network local side receiver；A number current source IDC1
Negative pole simultaneously with No. five triode Q5Base stage, No. six triode Q6Base stage, No. seven triode Q7Base stage and seven
Number triode Q7Colelctor electrode be connected；
No. six triode Q6Emitter stage and No. seven triode Q7Emitter stage all with the connecing of passive optical network local side receiver
Ground end GND is connected；No. six triode Q6Colelctor electrode simultaneously with No. eight triode Q8Colelctor electrode, No. eight triodes
Q8Base stage and No. nine triode Q9Base stage be connected；
No. eight triode Q8Emitter stage and No. nine triode Q9The electricity all with passive optical network local side receiver for the emitter stage
Source VDD is connected；
No. nine triode Q9Colelctor electrode simultaneously with No. two node VB1With No. five resistance R5One end be connected；
No. five resistance R5The other end be simultaneously connected with ten No. two triode Q12Base stage and ten No. two triode Q12Current collection
Extremely connected；
Ten No. two triode Q12Emitter stage simultaneously with ride on Bus No. 11 triode Q11Base stage and ride on Bus No. 11 triode Q11Collection
Electrode is connected；
Ride on Bus No. 11 triode Q11Emitter stage simultaneously with No. ten triode Q10Base stage and No. ten triode Q10Colelctor electrode
It is connected；
No. ten triode Q10Emitter stage be connected with the earth terminal GND of passive optical network local side receiver.
In biasing circuit 5, by No. five triode Q5, No. six triode Q6, No. seven triode Q7, No. eight triodes
Q8With No. nine triode Q9The current mirror of composition is No. two triode Q simultaneously2, No. two resistance R2With No. five resistance R5There is provided
Bias current, by ratio and No. two resistance R of each current mirror of adjustment2With No. five resistance R5Resistance so that No. two electricity
Resistance R2With No. five resistance R5The voltage at two ends is equal, and makes this magnitude of voltage be VSET, when input current is zero, No. three three
Pole pipe Q3With No. four triode Q4Conducting voltage VBEEqual to VSET, due to when input current increases, three poles
Pipe Q1Emitter voltage change, so No. three triode Q3With No. four triode Q4Beat when same input current
Open；Owing to biasing circuit 5 only relies on a current source IDC1It is biased, it is possible to realize No. two node VB1Electricity
Enter Mobile state according to different temperature at all to adjust；
According to the loop phase nargin when 25 DEG C for this trans-impedance amplifier with input current change emulation, as shown in Figure 10,
Be capable of determining that input current in the working range of 6 μ A-2mA, phase margin is maintained at more than 50 degree.
According to the loop phase nargin when 110 DEG C for this trans-impedance amplifier with input current change emulation, as shown in figure 11,
Be capable of determining that input current in the working range of 6 μ A-2mA, phase margin is maintained at more than 50 degree.
Therefore, the shadow that a kind of HDR burst mode trans-impedance amplifier described in present embodiment can not be changed by temperature
Ring, it is ensured that under different process, this trans-impedance amplifier can normally work.
Detailed description of the invention six: present embodiment is that the HDR burst mode described in detailed description of the invention five is across resistance
Amplifier limits further, in the present embodiment, and described No. five triode Q5, No. six triode Q6, No. seven triodes
Q7, No. ten triode Q10, ride on Bus No. 11 triode Q11With ten No. two triode Q12It is NPN type triode；
Described No. eight triode Q8With No. nine triode Q9It is PNP type triode.
Detailed description of the invention seven: combine Fig. 7 and present embodiment is described, present embodiment is described in detailed description of the invention five
HDR burst mode trans-impedance amplifier on the basis of be replaced, in the present embodiment, use No. two current sources
IDC2With ten No. three triode Q13Replace voltage source VDC1；
No. two current source IDC2Positive pole be connected with the power end VDD of passive optical network local side receiver；No. two current source IDC2
For reducing input impedance；
No. two current source IDC2Negative pole simultaneously with ten No. three triode Q13Base stage and ten No. three triode Q13Colelctor electrode phase
Even；
Ten No. three triode Q13Colelctor electrode and a triode Q1Emitter stage be connected；
Ten No. three triode Q13Emitter stage be connected with the earth terminal GND of passive optical network local side receiver；
Described ten No. three triode Q13For NPN type triode.
Claims (7)
1. HDR burst mode trans-impedance amplifier, it includes a triode (Q1), No. two triode (Q2), one
Number resistance (R1), No. six resistance (R6), photodiode (3), photodiode cathode voltage input-terminal (4), electricity
Potential source (VDC1) and a current source (IDC1)；A number resistance (R1) the electricity of one end and passive optical network local side receiver
Source (VDD) is connected；A number resistance (R1) the other end simultaneously with a triode (Q1) colelctor electrode and No. two three
(Q is managed in pole2) base stage connect, tie point is as voltage output end (VOUT)；The negative electrode of photodiode (3) and light
Electric diode cathode voltage input terminal (4) is connected；The anode of photodiode (3) simultaneously with a triode (Q1)
Base stage and No. six resistance (R6) one end be connected；No. two triode (Q2) colelctor electrode and passive optical network local side receive
The power end (VDD) of machine is connected；A number current source (IDC1) the earth terminal of negative pole and passive optical network local side receiver
(GND) it is connected；A number triode (Q1) emitter stage and voltage source (VDC1) positive pole be connected；Voltage source (VDC1)
Negative pole be connected with the earth terminal (GND) of passive optical network local side receiver；
It is characterized in that, it also includes that loop phase nargin compensates circuit (1) and dynamic auto gain control circuit (2)；
Described loop phase nargin compensates circuit (1) and includes No. four triode (Q4) and No. four resistance (R4)；
No. four triode (Q4) base stage be No. two node (VB1), No. four triode (Q4) colelctor electrode and passive optical network
The power end (VDD) of network local side receiver is connected；No. four triode (Q4) emitter stage and No. four resistance (R4) one
End is connected；No. four resistance (R4) the other end and a triode (Q1) colelctor electrode be connected；
Described dynamic auto gain control circuit (2) includes No. three triode (Q3), No. two resistance (R2) and No. three resistance
(R3)；
No. two triode (Q2) emitter stage simultaneously with No. six resistance (R6) the other end and No. two resistance (R2) one end
Connect, connect node as a node (VS1)；No. two resistance (R2) the other end simultaneously with a current source (IDC1)
Positive pole and No. three resistance (R3) one end be connected；
No. three triode (Q3) base stage and colelctor electrode simultaneously with a triode (Q1) base stage be connected；No. three triodes
(Q3) emitter stage and No. three resistance (R3) the other end be connected.
2. HDR burst mode trans-impedance amplifier according to claim 1, it is characterised in that described No. one three
(Q is managed in pole1), No. two triode (Q2), No. three triode (Q3) and No. four triode (Q4) it is NPN type three pole
Pipe.
3. HDR burst mode trans-impedance amplifier according to claim 2, it is characterised in that use No.
Metal-oxide-semiconductor (M1) replace No. four triode (Q4)；Use No. two metal-oxide-semiconductor (M2) replace No. three triode (Q3)；
A number metal-oxide-semiconductor (M1) grid be No. two node (VB1), a metal-oxide-semiconductor (M1) source electrode and passive light
The power end (VDD) of linked office's end receiver is connected；A number metal-oxide-semiconductor (M1) drain electrode and No. four resistance (R4)
One end is connected；
No. two metal-oxide-semiconductor (M2) grid and source electrode simultaneously with a triode (Q1) base stage be connected；No. two metal-oxide-semiconductors
(M2) drain electrode and No. three resistance (R3) the other end be connected.
4. HDR burst mode trans-impedance amplifier according to claim 3, it is characterised in that described No.
Metal-oxide-semiconductor (M1) and No. two metal-oxide-semiconductor (M2) it is N-type metal-oxide-semiconductor.
5. HDR burst mode trans-impedance amplifier, it includes a triode (Q1), No. two triode (Q2), one
Number resistance (R1), No. six resistance (R6), photodiode (3), photodiode cathode voltage input-terminal (4) and electricity
Potential source (VDC1)；A number resistance (R1) one end be connected with the power end (VDD) of passive optical network local side receiver；One
Number resistance (R1) the other end simultaneously with a triode (Q1) colelctor electrode and No. two triode (Q2) base stage connect,
Tie point is as voltage output end (VOUT)；The negative electrode of photodiode (3) and photodiode cathode voltage input end
Son (4) is connected；The anode of photodiode (3) simultaneously with a triode (Q1) base stage and No. six resistance (R6)
One end be connected；No. two triode (Q2) colelctor electrode be connected with the power end (VDD) of passive optical network local side receiver；
A number triode (Q1) emitter stage and voltage source (VDC1) positive pole be connected；Voltage source (VDC1) negative pole with passive
The earth terminal (GND) of optical network local side receiver is connected；
It is characterized in that, it also includes that loop phase nargin compensates circuit (1), dynamic auto gain control circuit (2) and inclined
Circuits (5)；
Described loop phase nargin compensates circuit (1) and includes No. four triode (Q4) and No. four resistance (R4)；
Described dynamic auto gain control circuit (2) includes No. three triode (Q3), No. two resistance (R2) and No. three resistance
(R3)；
Described biasing circuit (5) includes No. five triode (Q5), No. six triode (Q6), No. seven triode (Q7), eight
Number triode (Q8), No. nine triode (Q9), No. ten triode (Q10), ride on Bus No. 11 triode (Q11), ten No. two three
(Q is managed in pole12), a current source (IDC1) and No. five resistance (R5)；
No. four triode (Q4) base stage be No. two node (VB1), No. two node (VB1) voltage be used for ensureing loop
Phase margin is in stable state when compensating circuit (1) work；No. four triode (Q4) colelctor electrode and EPON office
The power end (VDD) of end receiver is connected；No. four triode (Q4) emitter stage and No. four resistance (R4) one end phase
Even；No. four resistance (R4) the other end and a triode (Q1) colelctor electrode be connected；
No. two triode (Q2) emitter stage simultaneously with No. six resistance (R6) the other end and No. two resistance (R2) one end
Connect, connect node as a node (VS1)；
No. three triode (Q3) base stage and colelctor electrode simultaneously with a triode (Q1) base stage be connected；No. three triodes
(Q3) emitter stage and No. three resistance (R3) one end be connected；No. three resistance (R3) the other end and No. two resistance (R2)
The other end connect；
No. five triode (Q5) colelctor electrode and No. three resistance (R3) and No. two resistance (R2) common port be connected；No. five
Triode (Q5) emitter stage be connected with the earth terminal (GND) of passive optical network local side receiver；
A number current source (IDC1) positive pole be connected with the power end (VDD) of passive optical network local side receiver；A number electricity
Stream source (IDC1) negative pole simultaneously with No. five triode (Q5) base stage, No. six triode (Q6) base stage, No. seven three poles
Pipe (Q7) base stage and No. seven triode (Q7) colelctor electrode be connected；
No. six triode (Q6) emitter stage and No. seven triode (Q7) emitter stage all with passive optical network local side receiver
Earth terminal (GND) be connected；No. six triode (Q6) colelctor electrode simultaneously with No. eight triode (Q8) colelctor electrode,
No. eight triode (Q8) base stage and No. nine triode (Q9) base stage be connected；
No. eight triode (Q8) emitter stage and No. nine triode (Q9) emitter stage all with passive optical network local side receiver
Power end (VDD) be connected；
No. nine triode (Q9) colelctor electrode simultaneously with No. two node (VB1) and No. five resistance (R5) one end be connected；
No. five resistance (R5) the other end be simultaneously connected with ten No. two triode (Q12) base stage and ten No. two triode (Q12)
Colelctor electrode be connected；
Ten No. two triode (Q12) emitter stage simultaneously with ride on Bus No. 11 triode (Q11) base stage and ride on Bus No. 11 triode (Q11)
Colelctor electrode be connected；
Ride on Bus No. 11 triode (Q11) emitter stage simultaneously with No. ten triode (Q10) base stage and No. ten triode (Q10)
Colelctor electrode be connected；
No. ten triode (Q10) emitter stage be connected with the earth terminal (GND) of passive optical network local side receiver.
6. HDR burst mode trans-impedance amplifier according to claim 5, it is characterised in that described No. five
Triode (Q5), No. six triode (Q6), No. seven triode (Q7), No. ten triode (Q10), ride on Bus No. 11 triode (Q11)
With ten No. two triode (Q12) it is NPN type triode；
Described No. eight triode (Q8) and No. nine triode (Q9) it is PNP type triode.
7. HDR burst mode trans-impedance amplifier according to claim 5, it is characterised in that use No. two electricity
Stream source (IDC2) and ten No. three triode (Q13) replace voltage source (VDC1)；
No. two current source (IDC2) positive pole be connected with the power end (VDD) of passive optical network local side receiver；
No. two current source (IDC2) negative pole simultaneously with ten No. three triode (Q13) base stage and ten No. three triode (Q13)
Colelctor electrode is connected；
Ten No. three triode (Q13) colelctor electrode and a triode (Q1) emitter stage be connected；
Ten No. three triode (Q13) emitter stage be connected with the earth terminal (GND) of passive optical network local side receiver；
Described ten No. three triode (Q13) it is NPN type triode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620511694.XU CN205622603U (en) | 2016-05-26 | 2016-05-26 | High dynamic range proruption mode transimpedance amplifier |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620511694.XU CN205622603U (en) | 2016-05-26 | 2016-05-26 | High dynamic range proruption mode transimpedance amplifier |
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| Publication Number | Publication Date |
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| CN205622603U true CN205622603U (en) | 2016-10-05 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105897195A (en) * | 2016-05-26 | 2016-08-24 | 千度芯通（厦门）微电子科技有限公司 | Burst mode trans-impedance amplifiers in high dynamic range |
-
2016
- 2016-05-26 CN CN201620511694.XU patent/CN205622603U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105897195A (en) * | 2016-05-26 | 2016-08-24 | 千度芯通（厦门）微电子科技有限公司 | Burst mode trans-impedance amplifiers in high dynamic range |
| CN105897195B (en) * | 2016-05-26 | 2018-12-28 | 千度芯通（厦门）微电子科技有限公司 | High dynamic range burst mode trans-impedance amplifier |
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Address after: 361011 Fujian Xiamen free trade trial area Xiamen area 1736 central 402 unit Patentee after: Xiamen Siayuan billion Semiconductor Technology Co. Ltd. Address before: Xiamen free trade trial area Xiamen area 1702 Hong Kong Road 205 unit Patentee before: (Xiamen) Microelectronics Technology Co., Ltd. |
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| CP03 | Change of name, title or address | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20161005 Effective date of abandoning: 20181228 |
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| AV01 | Patent right actively abandoned |