CN206272571U - A kind of broad band low frequency amplitude limit low noise amplification device assembly - Google Patents
A kind of broad band low frequency amplitude limit low noise amplification device assembly Download PDFInfo
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- CN206272571U CN206272571U CN201621273489.0U CN201621273489U CN206272571U CN 206272571 U CN206272571 U CN 206272571U CN 201621273489 U CN201621273489 U CN 201621273489U CN 206272571 U CN206272571 U CN 206272571U
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Abstract
The utility model belongs to microwave technical field, more particularly to a kind of broad band low frequency amplitude limit low noise amplification device assembly.The utility model includes amplitude limiter circuit, first amplifying circuit, filter circuit, attenuator circuit, second amplifying circuit, termination power and detection circuit, the signal output part of amplitude limiter circuit connects the signal input part of the first amplifying circuit, the signal output part of first amplifying circuit connects the signal input part of filter circuit, the signal output part of the filter circuit connects the signal input part of attenuator circuit, the signal output part of the attenuator circuit connects the signal input part of the second amplifying circuit, the signal output part of second amplifying circuit connects the signal input part of termination power, the signal input part of the coupled end connection detection circuit of the termination power.Small volume of the present utility model, integrated level are high, reliability is high, be adapted to batch production.
Description
Technical field
The utility model belongs to microwave technical field, more particularly to a kind of broad band low frequency amplitude limit low noise amplification device assembly.
Background technology
With the rapid development of electronic technology, solid state microwave power amplifier finds broad application, the big work(particularly in T/R systems
Rate microwave component is just increasingly widely applied.It is essential Connectors for Active Phased Array Radar that HIGH-POWERED MICROWAVES opens limiter
Critical component, has obtained great attention and has obtained rapidly development in recent years.The noise coefficient of microwave system substantially takes
Certainly in the noise coefficient of prime low-noise amplifier, so low-noise amplifier is considerable part in reception system, its
Noiseproof feature directly affects the sensitivity of receiver, and magnitude-phase characteristics directly determines the magnitude-phase characteristics of receiver, either radar and
Communication receiving system will use low-noise amplifier.
The technical difficulty of large power microwave amplitude limiter is mainly reflected in microwave circuit structure, design, realization and heat dissipation problem
Etc. aspect, especially broadband difficulty is bigger.It is traditional as microwave device miniaturization and integrated development trend grow in intensity
The design of amplitude limit low-noise amplifier is separately to design limiter and low-noise amplifier, therefore amplitude limit of the prior art is low
Noise amplifier cannot meet the demand of microwave system miniaturization integration, need improvement badly.
Utility model content
The utility model is in order to overcome the above-mentioned deficiencies of the prior art, there is provided a kind of broad band low frequency amplitude limit low noise amplification
Device assembly, small volume of the present utility model, integrated level are high, reliability is high, be adapted to batch production.
To achieve the above object, the utility model employs following technical measures：
A kind of broad band low frequency amplitude limit low noise amplification device assembly includes amplitude limiter circuit, the first amplifying circuit, filter circuit, declines
Powered down road, the second amplifying circuit, termination power and detection circuit, the signal input part of the amplitude limiter circuit is used as this amplifier
The signal input part of component, the signal output part of amplitude limiter circuit connects the signal input part of the first amplifying circuit, and described first puts
The signal output part of big circuit connects the signal input part of filter circuit, the signal output part connection decay electricity of the filter circuit
The signal input part on road, the signal output part of the attenuator circuit connects the signal input part of the second amplifying circuit, described second
The signal output part of amplifying circuit connects the signal input part of termination power, the coupled end connection detection circuit of the termination power
Signal input part, the signal output part of the detection circuit as this amplifier block detection output, the coupling electricity
The signal output part on road as this amplifier block signal output part.
The utility model can also further be realized by following technical measures.
Preferably, the amplitude limiter circuit includes the first electric capacity, the first diode, the second diode, the 3rd diode, the 4th
Diode, one end of first electric capacity as this amplifier block signal input part, the other end of the first electric capacity connects respectively
Connect positive pole, the positive pole of the second diode, the positive pole of the 3rd diode, the negative pole and first of the 4th diode of the first diode
The signal input part of amplifying circuit, the negative pole of first diode, the negative pole of the second diode, the negative pole of the 3rd diode,
The positive pole of the 4th diode is grounded.
Preferably, first amplifying circuit includes the first integrated circuit, and the chip model of first integrated circuit is
The WHM0003AE chips of WanTcom companies of U.S. production, the pin 1 of the WHM0003AE chips connects the one of the second electric capacity
End, the other end of second electric capacity connects the other end of the first electric capacity, and the pin 2 of WHM0003AE chips connects the first inductance
One end, the other end of first inductance connects one end of first resistor and one end of the 3rd electric capacity, described first respectively
The other end of resistance, the other end of the 3rd electric capacity are grounded, and the pin 4 of WHM0003AE chips connects one end of the second inductance, institute
The other end for stating the second inductance connects one end of second resistance and one end of the 5th electric capacity respectively, the second resistance it is another
End respectively connect the 6th electric capacity one end, one end of the 7th electric capacity, one end of the 3rd inductance, the other end of the 5th electric capacity,
The other end of the 6th electric capacity, the other end of the 7th electric capacity are grounded, the other end connection power supply of the 3rd inductance,
The pin 5 of WHM0003AE chips connects one end of the 4th electric capacity, and the other end of the 4th electric capacity connects the signal of filter circuit
Input.
Preferably, the filter circuit includes wave filter, and the signal input part of the wave filter connects the another of the 4th electric capacity
One end, the signal output part of wave filter connects the signal input part of attenuator circuit.
Preferably, the attenuator circuit includes the tenth resistance, the 11st resistance, the 12nd resistance, the tenth resistance
One end, one end of the 11st resistance are all connected with the signal output part of wave filter, the other end connection the tenth of the 11st resistance
One end of two resistance and the signal input part of the second amplifying circuit, the other end of the tenth resistance, the 12nd resistance it is another
One end is grounded.
Further, second amplifying circuit includes the second integrated circuit, the chip model of second integrated circuit
Be SBF4089 chips, the signal input part of the SBF4089 chips connects one end of the 8th electric capacity, the 8th electric capacity it is another
One end connects the other end of the 11st resistance, and the signal output part of SBF4089 chips connects one end of the 5th inductance, the described 5th
The other end of inductance connects one end of the 12nd electric capacity, one end of the 6th inductance, the other end difference of the 6th inductance respectively
Connect one end, one end of the tenth electric capacity, one end of the 11st electric capacity, one end of the 4th inductance of the 9th electric capacity, the 9th electricity
The other end of appearance, the other end of the tenth electric capacity, the other end of the 11st electric capacity are grounded, the other end connection electricity of the 4th inductance
Source, the other end of the 12nd electric capacity connects the signal input part of termination power.
Further, the termination power includes the 3rd integrated circuit, and the chip model of the 3rd integrated circuit is
ADC-15-4 chips, the pin 1 of the ADC-15-4 chips connects the other end of the 12nd electric capacity, the pin of ADC-15-4 chips
One end of 3 the 17th electric capacity of connection, the signal input part of the other end connection detection circuit of the 17th electric capacity, ADC-15-4
The pin 4 of chip connects one end of 3rd resistor, and the other end ground connection of the 3rd resistor, the pin 6 of ADC-15-4 chips connects
Connect one end of the 13rd electric capacity, the other end of the 13rd electric capacity as this amplifier block signal output part.
Further, the detection circuit includes the 4th integrated circuit and the 5th integrated circuit, the 4th integrated electricity
The chip model on road is AD8310 chips, and the chip model of the 5th integrated circuit is LM2904 chips, the AD8310 cores
The pin 1 of piece connects one end of the 14th electric capacity, and the other end of the 14th electric capacity connects one end of the 4th resistance and is grounded,
The other end of the 4th resistance connects the other end of the 17th electric capacity, one end of the 15th electric capacity, the 15th electricity respectively
The other end of appearance connects the pin 8 of AD8310 chips, the pin 5 of AD8310 chips, pin 7 be all connected with the 5th resistance one end,
One end of 16th electric capacity, the other end connection power supply of the 5th resistance, the pin 4 of AD8310 chips connects the 6th resistance
One end, one end of the 18th electric capacity, the other end of the 6th resistance connect the positive signal input of LM2904 chips,
The negative signal input of LM2904 chips connects one end of the 7th resistance, one end of the 8th resistance, the 8th resistance respectively
The other end connect one end, one end of the 19th electric capacity, the cathode power supply end of LM2904 chips and the electricity of the 9th resistance respectively
Source, the other end of the 16th electric capacity, the other end of the 18th electric capacity, the other end of the 7th resistance, the 19th electric capacity it is another
One end is grounded, and the signal output part of the LM2904 chips is connected with the other end of the 9th resistance, the signal of LM2904 chips
Output end as this amplifier block detection output.
The beneficial effects of the utility model are：
1), the utility model includes that amplitude limiter circuit, the first amplifying circuit, filter circuit, attenuator circuit, second amplify electricity
Road, termination power and detection circuit, it is without damage in high-power signal lower amplitude limiter circuit protection amplifying circuit below, small
The fast quick-recovery low-loss of power signal lower amplitude limiter circuit is straight-through and amplifies to meet below that system is being just by the first amplifying circuit
Often work, therefore small volume of the present utility model, integrated level are high, reliability is high, be adapted to batch production.
Be worth it is emphasized that：The utility model only protect by above-mentioned physical unit and connect each physical unit it
Between the circuit device or physical platform that are constituted, without regard to software section therein.
2), the chip model of first integrated circuit is the WHM0003AE chips of WanTcom companies of U.S. production, institute
The chip model of the second integrated circuit is stated for SBF4089 chips, the chip model of the 3rd integrated circuit is ADC-15-4 cores
Piece, the chip model of the 4th integrated circuit is AD8310 chips, and the part of above-mentioned multiple specific models is worked in coordination, and is realized
Optimal design of the present utility model.
Brief description of the drawings
Fig. 1 is that circuit of the present utility model constitutes structured flowchart；
Fig. 2 is circuit theory diagrams of the present utility model.
Reference implication in figure is as follows：
10-amplitude limiter circuit 20-the first, 30-filter circuit of amplifying circuit
40-attenuator circuit 50-the second, 60-termination power of amplifying circuit
70-detection circuit
R1~R12-first resistor~the 12nd resistance
C1~C19-the first electric capacity~the 19th electric capacity
V1~V4-the first diode~the 4th diode
Specific embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is carried out
Clearly and completely describe, it is clear that described embodiment is only a part of embodiment of the utility model, rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made
The every other embodiment for being obtained, belongs to the scope of the utility model protection.
As shown in figure 1, a kind of broad band low frequency amplitude limit low noise amplification device assembly includes amplitude limiter circuit 10, the first amplifying circuit
20th, filter circuit 30, attenuator circuit 40, the second amplifying circuit 50, termination power 60 and detection circuit 70, the amplitude limiter circuit
10 signal input part as this amplifier block signal input part, amplitude limiter circuit 10 signal output part connection first amplify
The signal input part of circuit 20, the signal output part of first amplifying circuit 20 connects the signal input part of filter circuit 30,
The signal output part of the filter circuit 30 connects the signal input part of attenuator circuit 40, the signal output of the attenuator circuit 40
The signal input part of the second amplifying circuit 50 of end connection, the signal output part connection termination power 60 of second amplifying circuit 50
Signal input part, the signal input part of the coupled end connection detection circuit 70 of the termination power 60, the detection circuit 70
Signal output part as this amplifier block detection output, the signal output part of the termination power 60 is used as this amplification
The signal output part of device assembly.
As shown in Fig. 2 the amplitude limiter circuit 10 includes the first electric capacity C1, the first diode V1, the second diode V2, the 3rd
Diode V3, the 4th diode V4, one end of the first electric capacity C1 as this amplifier block signal input part, the first electricity
Hold C1 the other end connect respectively the positive pole of the first diode V1, the positive pole of the second diode V2, the positive pole of the 3rd diode V3,
The signal input part of the negative pole of the 4th diode V4 and the first amplifying circuit 20, negative pole, second of the first diode V1
The negative pole of diode V2, the negative pole of the 3rd diode V3, the positive pole of the 4th diode V4 are grounded, the first diode V1,
Second diode V2, the 3rd diode V3, the 4th diode V4 select bare die, can reduce volume of the present utility model.
As shown in Fig. 2 first amplifying circuit 20 include the first integrated circuit, first integrated circuit it is chip-shaped
Number it is the WHM0003AE chips of WanTcom companies of U.S. production, the pin 1 of the WHM0003AE chips connects the second electric capacity C2
One end, the other end of the second electric capacity C2 connects the other end of the first electric capacity C1, and the pin 2 of WHM0003AE chips is connected
One end of first inductance L1, the other end of the first inductance L1 connects one end and the 3rd electric capacity C3 of first resistor R1 respectively
One end, the other end of the first resistor R1, the other end of the 3rd electric capacity C3 be grounded, and the pin 4 of WHM0003AE chips connects
One end of the second inductance L2 is connect, the other end of the second inductance L2 connects one end and the 5th electric capacity of second resistance R2 respectively
One end of C5, the other end of the second resistance R2 connects one end of the 6th electric capacity C6, one end, the 3rd of the 7th electric capacity C7 respectively
One end of inductance L3, the other end of the 5th electric capacity C5, the other end of the 6th electric capacity C6, the other end of the 7th electric capacity C7 connect
Ground, the other end connection power supply of the 3rd inductance L3, the pin 5 of WHM0003AE chips connects one end of the 4th electric capacity C4, institute
The other end for stating the 4th electric capacity C4 connects the signal input part of filter circuit 30；The pin 3 of the WHM0003AE chips, pin 6
It is grounded.
As shown in Fig. 2 the filter circuit 30 includes wave filter, the signal input part of the wave filter connects the 4th electric capacity
The other end of C4, the signal output part of wave filter connects the signal input part of attenuator circuit 40.
As shown in Fig. 2 the attenuator circuit 40 includes the tenth resistance R10, the 11st resistance R11, the 12nd resistance R12,
One end of the tenth resistance R10, one end of the 11st resistance R11 are all connected with the signal output part of wave filter, the described 11st
The other end of resistance R11 connects one end of the 12nd resistance R12 and the signal input part of the second amplifying circuit 50, the described tenth
The other end of resistance R10, the other end of the 12nd resistance R12 are grounded；The tenth resistance R10, the 11st resistance R11,
12 resistance R12 constitute π type attenuators.
As shown in Fig. 2 second amplifying circuit 50 include the second integrated circuit, second integrated circuit it is chip-shaped
Number it is SBF4089 chips, the signal input part of the SBF4089 chips connects one end of the 8th electric capacity C8, the 8th electric capacity
The other end of C8 connects the other end of the 11st resistance R11, and the signal output part of SBF4089 chips connects the one of the 5th inductance L5
End, the other end of the 5th inductance L5 connects one end of the 12nd electric capacity C12, one end of the 6th inductance L6 respectively, and described the
The other end of six inductance L6 connects one end, one end of the tenth electric capacity C10, the one of the 11st electric capacity C11 of the 9th electric capacity C9 respectively
End, one end of the 4th inductance L4, the other end, the other end of the tenth electric capacity C10, the 11st electric capacity C11 of the 9th electric capacity C9
The other end be grounded, the other end of the 4th inductance L4 connection power supply, the other end connection coupling electricity of the 12nd electric capacity C12
The signal input part on road 60；The cathode power supply end of the SBF4089 chips and negative electricity source are grounded.
As shown in Fig. 2 the termination power 60 includes the 3rd integrated circuit, the chip model of the 3rd integrated circuit is
ADC-15-4 chips, the pin 1 of the ADC-15-4 chips connects the other end of the 12nd electric capacity C12, ADC-15-4 chips
Pin 3 connects one end of the 17th electric capacity C17, and the signal of the other end connection detection circuit 70 of the 17th electric capacity C17 is defeated
Enter end, one end of the connection 3rd resistor of pin 4 R3 of ADC-15-4 chips, the other end ground connection of the 3rd resistor R3, ADC-
The pin 6 of 15-4 chips connects one end of the 13rd electric capacity C13, and the other end of the 13rd electric capacity C13 is used as this amplifier
The signal output part of component, the pin 2 of the ADC-15-4 chips is grounded, and the pin 5 of ADC-15-4 chips is vacantly placed.
The detection circuit 70 includes the 4th integrated circuit and the 5th integrated circuit, the chip of the 4th integrated circuit
Model AD8310 chips, the chip model of the 5th integrated circuit is LM2904 chips, the pin 1 of the AD8310 chips
One end of the 14th electric capacity C14 is connected, the other end of the 14th electric capacity C14 connects one end of the 4th resistance R4 and is grounded,
The other end of the 4th resistance R4 connects the other end of the 17th electric capacity C17, one end of the 15th electric capacity C15 respectively, described
The other end of the 15th electric capacity C15 connects the pin 8 of AD8310 chips, and the pin 5 of AD8310 chips, pin 7 are all connected with the 5th
One end of resistance R5, one end of the 16th electric capacity C16, the other end connection power supply of the 5th resistance R5, AD8310 chips
Pin 4 connects one end, one end of the 18th electric capacity C18 of the 6th resistance R6, the other end connection of the 6th resistance R6
The positive signal input of LM2904 chips, the negative signal input of LM2904 chips connects the one of the 7th resistance R7 respectively
End, one end of the 8th resistance R8, the other end of the 8th resistance R8 connect one end of the 9th resistance R9, the 19th electric capacity respectively
One end of C19, the cathode power supply end of LM2904 chips and power supply, the other end, the 18th electric capacity of the 16th electric capacity C16
The other end of C18, the other end of the 7th resistance R7, the other end of the 19th electric capacity C19 are grounded, the letter of the LM2904 chips
Number output end is connected with the other end of the 9th resistance R9, the signal output part of LM2904 chips as this amplifier block detection
Output end, the pin 2 of the AD8310 chips is grounded, and pin 3, the pin 6 of AD8310 chips are hanging to be placed；LM2904 chips
Negative power supply end ground connection.
The utility model when in use, can coordinate to be used with software of the prior art.With reference to existing
Software in technology is described to operation principle of the present utility model, it must be noted that be：Match with the utility model
The software of conjunction is not innovative part of the present utility model, nor part of the present utility model.
The signal input part connection input signal of the amplitude limiter circuit 10, amplitude limiter circuit 10 possesses the function of amplitude limit, when defeated
Enter signal in the case of powerful, amplitude limiter circuit 10 protects amplifying circuit below without damage, when input signal is small work(
In the case of rate, the fast quick-recovery low-loss of amplitude limiter circuit 10 is led directly to, and signal is again after the first amplifying circuit 20 amplifies with satisfaction
The normal work of plane system, input signal is delivered to after the first amplifying circuit 20 carries out signal amplification and is sequentially fed into filter circuit again
30th, attenuator circuit 40, the filter circuit 30 and the selection useful signal of attenuator circuit 40 and filtering clutter and reduction gain, input
Signal delivers to the operation for realizing in the second amplifying circuit 50 being amplified useful signal by attenuator circuit 40 again, and second amplifies electricity
The signal output part on road 50 outputs signal to termination power 60, the signal output part output signal of termination power 60, termination power
60 coupled end outputs signal to the signal input part of detection circuit 70, and the detection circuit 70 is used for checking circuit working state
It is whether normal, if circuit is faulty, the detection output low level of circuit 70.
Claims (8)
1. a kind of broad band low frequency amplitude limit low noise amplification device assembly, it is characterised in that：Amplify electricity including amplitude limiter circuit (10), first
Road (20), filter circuit (30), attenuator circuit (40), the second amplifying circuit (50), termination power (60) and detection circuit
(70), the signal input part of the amplitude limiter circuit (10) as this amplifier block signal input part, amplitude limiter circuit (10)
Signal output part connects the signal input part of the first amplifying circuit (20), and the signal output part of first amplifying circuit (20) connects
Connect the signal input part of filter circuit (30), the signal of signal output part connection attenuator circuit (40) of the filter circuit (30)
Input, the signal output part of the attenuator circuit (40) connects the signal input part of the second amplifying circuit (50), described second
The signal input part of signal output part connection termination power (60) of amplifying circuit (50), the coupled end of the termination power (60)
The signal input part of connection detection circuit (70), the signal output part of the detection circuit (70) as this amplifier block inspection
Survey output end, the signal output part of the termination power (60) as this amplifier block signal output part.
2. a kind of broad band low frequency amplitude limit low noise amplification device assembly as claimed in claim 1, it is characterised in that：The amplitude limit electricity
Road (10) includes the first electric capacity (C1), the first diode (V1), the second diode (V2), the 3rd diode (V3), the four or two pole
Pipe (V4), one end of first electric capacity (C1) as this amplifier block signal input part, the first electric capacity (C1) it is another
End connects positive pole, the positive pole of the second diode (V2), positive pole, the 4th of the 3rd diode (V3) of the first diode (V1) respectively
The negative pole of diode (V4) and the signal input part of the first amplifying circuit (20), the negative pole of first diode (V1),
The negative pole of two diodes (V2), the negative pole of the 3rd diode (V3), the positive pole of the 4th diode (V4) are grounded.
3. a kind of broad band low frequency amplitude limit low noise amplification device assembly as claimed in claim 2, it is characterised in that：Described first puts
Big circuit (20) includes the first integrated circuit, and the chip model of first integrated circuit is the production of WanTcom companies of the U.S.
WHM0003AE chips, the pin 1 of the WHM0003AE chips connects one end of the second electric capacity (C2), second electric capacity (C2)
The other end connect the other end of the first electric capacity (C1), the pin 2 of WHM0003AE chips connects one end of the first inductance (L1),
The other end of first inductance (L1) connects one end of first resistor (R1) and one end of the 3rd electric capacity (C3) respectively, described
The other end of first resistor (R1), the other end of the 3rd electric capacity (C3) are grounded, the connection of pin 4 second of WHM0003AE chips
One end of inductance (L2), the other end of second inductance (L2) connects one end and the 5th electric capacity of second resistance (R2) respectively
(C5) one end, the other end of the second resistance (R2) connects one end of the 6th electric capacity (C6), the 7th electric capacity (C7) respectively
One end, one end of the 3rd inductance (L3), the other end of the 5th electric capacity (C5), the other end of the 6th electric capacity (C6), the 7th electricity
The other end for holding (C7) is grounded, and the other end connection power supply of the 3rd inductance (L3), the pin 5 of WHM0003AE chips connects
Connect one end of the 4th electric capacity (C4), the signal input part of other end connection filter circuit (30) of the 4th electric capacity (C4).
4. a kind of broad band low frequency amplitude limit low noise amplification device assembly as claimed in claim 3, it is characterised in that：The filtered electrical
Road (30) includes wave filter, and the signal input part of the wave filter connects the other end of the 4th electric capacity (C4), the signal of wave filter
The signal input part of output end connection attenuator circuit (40).
5. a kind of broad band low frequency amplitude limit low noise amplification device assembly as claimed in claim 4, it is characterised in that：The decay electricity
Road (40) includes the tenth resistance (R10), the 11st resistance (R11), the 12nd resistance (R12), the one of the tenth resistance (R10)
End, one end of the 11st resistance (R11) are all connected with the signal output part of wave filter, the other end of the 11st resistance (R11)
One end of the 12nd resistance (R12) and the signal input part of the second amplifying circuit (50) are connected, the tenth resistance (R10)
The other end, the other end of the 12nd resistance (R12) are grounded.
6. a kind of broad band low frequency amplitude limit low noise amplification device assembly as claimed in claim 5, it is characterised in that：Described second puts
Big circuit (50) includes the second integrated circuit, and the chip model of second integrated circuit is SBF4089 chips, described
The signal input part of SBF4089 chips connects one end of the 8th electric capacity (C8), the other end connection of the 8th electric capacity (C8) the
The other end of 11 resistance (R11), the signal output part of SBF4089 chips connects one end of the 5th inductance (L5), the described 5th
The other end of inductance (L5) connects one end of the 12nd electric capacity (C12), one end of the 6th inductance (L6), the 6th inductance respectively
(L6) the other end connects one end of the 9th electric capacity (C9), one end of the tenth electric capacity (C10), the 11st electric capacity (C11) respectively
One end, one end of the 4th inductance (L4), the other end of the 9th electric capacity (C9), the other end, the 11st of the tenth electric capacity (C10)
The other end of electric capacity (C11) is grounded, the other end of the 4th inductance (L4) connection power supply, the 12nd electric capacity (C12) it is another
The signal input part of one end connection termination power (60).
7. a kind of broad band low frequency amplitude limit low noise amplification device assembly as claimed in claim 6, it is characterised in that：The coupling electricity
Road (60) includes the 3rd integrated circuit, and the chip model of the 3rd integrated circuit is ADC-15-4 chips, the ADC-15-4
The pin 1 of chip connects the other end of the 12nd electric capacity (C12), and the pin 3 of ADC-15-4 chips connects the 17th electric capacity (C17)
One end, the signal input part of the other end connection detection circuit (70) of the 17th electric capacity (C17), ADC-15-4 chips
One end of connection 3rd resistor of pin 4 (R3), the other end ground connection of the 3rd resistor (R3), the pin 6 of ADC-15-4 chips
One end of the 13rd electric capacity (C13) is connected, the other end of the 13rd electric capacity (C13) is defeated as the signal of this amplifier block
Go out end.
8. a kind of broad band low frequency amplitude limit low noise amplification device assembly as claimed in claim 7, it is characterised in that：The detection electricity
Road (70) includes the 4th integrated circuit and the 5th integrated circuit, and the chip model of the 4th integrated circuit is AD8310 cores
Piece, the chip model of the 5th integrated circuit is LM2904 chips, and the pin 1 of the AD8310 chips connects the 14th electric capacity
(C14) one end, the other end of the 14th electric capacity (C14) connects one end of the 4th resistance (R4) and is grounded, the described 4th
The other end of resistance (R4) connects the other end of the 17th electric capacity (C17), one end of the 15th electric capacity (C15), described respectively
The other end of 15 electric capacity (C15) connects the pin 8 of AD8310 chips, and the pin 5 of AD8310 chips, pin 7 are all connected with the 5th
One end of resistance (R5), one end of the 16th electric capacity (C16), the other end connection power supply of the 5th resistance (R5), AD8310
The pin 4 of chip connects one end, one end of the 18th electric capacity (C18) of the 6th resistance (R6), the 6th resistance (R6) it is another
One end connects the positive signal input of LM2904 chips, and the negative signal input of LM2904 chips connects the 7th resistance respectively
(R7) one end, one end of the 8th resistance (R8), the other end of the 8th resistance (R8) connect the 9th resistance (R9) respectively
One end, one end of the 19th electric capacity (C19), the cathode power supply end of LM2904 chips and power supply, the 16th electric capacity (C16)
The other end, the other end of the 18th electric capacity (C18), the other end of the 7th resistance (R7), the other end of the 19th electric capacity (C19)
It is grounded, the signal output part of the LM2904 chips is connected with the other end of the 9th resistance (R9), the signal of LM2904 chips
Output end as this amplifier block detection output.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621273489.0U CN206272571U (en) | 2016-11-24 | 2016-11-24 | A kind of broad band low frequency amplitude limit low noise amplification device assembly |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621273489.0U CN206272571U (en) | 2016-11-24 | 2016-11-24 | A kind of broad band low frequency amplitude limit low noise amplification device assembly |
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| Publication Number | Publication Date |
|---|---|
| CN206272571U true CN206272571U (en) | 2017-06-20 |
Family
ID=59040641
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| CN201621273489.0U Active CN206272571U (en) | 2016-11-24 | 2016-11-24 | A kind of broad band low frequency amplitude limit low noise amplification device assembly |
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| CN (1) | CN206272571U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108075795A (en) * | 2017-12-26 | 2018-05-25 | 深圳市强军科技有限公司 | Multifrequency receiver radio frequency front-end device |
| CN110098844A (en) * | 2019-05-14 | 2019-08-06 | 广东宽普科技股份有限公司 | A kind of C-band simple two-way signal reception device |
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2016
- 2016-11-24 CN CN201621273489.0U patent/CN206272571U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108075795A (en) * | 2017-12-26 | 2018-05-25 | 深圳市强军科技有限公司 | Multifrequency receiver radio frequency front-end device |
| CN108075795B (en) * | 2017-12-26 | 2023-11-28 | 深圳市强军科技有限公司 | Radio frequency front-end device of multi-frequency receiver |
| CN110098844A (en) * | 2019-05-14 | 2019-08-06 | 广东宽普科技股份有限公司 | A kind of C-band simple two-way signal reception device |
| CN110098844B (en) * | 2019-05-14 | 2024-04-16 | 广东宽普科技股份有限公司 | C-band two-way signal receiving device |
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