CN106452434B - Synthesis system of low-noise low-power consumption point frequency source - Google Patents
Synthesis system of low-noise low-power consumption point frequency source Download PDFInfo
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03L—AUTOMATIC CONTROL, STARTING, SYNCHRONISATION OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
- H03L7/00—Automatic control of frequency or phase; Synchronisation
- H03L7/06—Automatic control of frequency or phase; Synchronisation using a reference signal applied to a frequency- or phase-locked loop
- H03L7/16—Indirect frequency synthesis, i.e. generating a desired one of a number of predetermined frequencies using a frequency- or phase-locked loop
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- H—ELECTRICITY
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- H03K4/00—Generating pulses having essentially a finite slope or stepped portions
- H03K4/06—Generating pulses having essentially a finite slope or stepped portions having triangular shape
- H03K4/08—Generating pulses having essentially a finite slope or stepped portions having triangular shape having sawtooth shape
- H03K4/48—Generating pulses having essentially a finite slope or stepped portions having triangular shape having sawtooth shape using as active elements semiconductor devices
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- H—ELECTRICITY
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- H03L—AUTOMATIC CONTROL, STARTING, SYNCHRONISATION OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
- H03L7/00—Automatic control of frequency or phase; Synchronisation
- H03L7/06—Automatic control of frequency or phase; Synchronisation using a reference signal applied to a frequency- or phase-locked loop
- H03L7/08—Details of the phase-locked loop
- H03L7/085—Details of the phase-locked loop concerning mainly the frequency- or phase-detection arrangement including the filtering or amplification of its output signal
- H03L7/089—Details of the phase-locked loop concerning mainly the frequency- or phase-detection arrangement including the filtering or amplification of its output signal the phase or frequency detector generating up-down pulses
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Abstract
The invention belongs to the technical field of microwave low-noise frequency synthesizers, and particularly relates to a synthesis system of a low-noise low-power-consumption point frequency source. The invention comprises an interface matching circuit, a sampling phase discrimination circuit, a loop filter circuit, a dielectric medium oscillation circuit, an isolator output circuit, a voltage integral comparison circuit and an auxiliary oscillation triangular wave circuit, wherein the output end of the interface matching circuit and the output end of the dielectric medium oscillation circuit are both connected with the input end of the sampling phase discrimination circuit, the output end of the sampling phase discrimination circuit is connected with the input end of the loop filter circuit, the output end of the loop filter circuit is connected with the input end of the dielectric medium oscillation circuit and the input end of the voltage integral comparison circuit, the output end of the dielectric medium oscillation circuit is connected with the input end of the isolator output circuit, and one output end of the auxiliary oscillation triangular wave circuit is connected with the input end of the loop filter circuit. The invention can generate the 8GHz point frequency source with low noise and low power consumption, and has simple structure and stable performance.
Description
Technical Field
The invention belongs to the technical field of microwave low-noise frequency synthesizers, and particularly relates to a synthesis system of a low-noise low-power-consumption point frequency source.
Background
The microwave high-frequency band point frequency signal source is widely applied to the fields of radar, countermeasure, communication, test instruments and meters and the like, and mainly plays roles of a frequency mixing local oscillator function of an up-down converter and a quadrature modem of a microwave system and a synthesis frequency standard function of a broadband frequency synthesizer.
The point frequency source in the prior art can be realized by methods of microwave direct oscillation, frequency multiplication filtering amplification, comprehensive direct synthesis, frequency division lock phase combination and the like from the forming way, and the different realization methods have application limitations of different degrees, and the circuit structure of the microwave direct oscillation method is simple, but has poor stability, and can not meet the use requirements of a radar and a high stability test system; the synthesis system of the frequency multiplication filter amplification method and the synthesis direct synthesis method has the defects of large equipment quantity and large power consumption, and the frequency division phase-locked synthesis method also has the defect of overlarge additional noise of a circuit, so that the synthesis system which has simple structure and stable performance and can generate low-noise and low-power consumption point frequency sources is needed to be provided.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides a synthesis system of a low-noise low-power-consumption point frequency source, which can generate a low-noise low-power-consumption 8GHz point frequency source, and has the advantages of simple structure and stable performance.
In order to achieve the above object, the present invention adopts the following technical measures:
the utility model provides a synthesizing system of low noise low-power consumption point frequency source, includes interface matching circuit, sample phase discrimination circuit, loop filter circuit, electric tuning medium oscillating circuit, isolator output circuit, voltage integral comparison circuit and supplementary oscillation triangle wave circuit, the input of interface matching circuit connects the input signal, and the output of interface matching circuit, electric tuning medium oscillating circuit all connect the input of sample phase discrimination circuit, the input of loop filter circuit is connected to the output of sample phase discrimination circuit, the input of electric tuning medium oscillating circuit, the input of voltage integral comparison circuit is connected to the output of loop filter circuit, the input of isolator output circuit is connected to the output of electric tuning medium oscillating circuit, the input of loop filter circuit is connected to one output of supplementary oscillation triangle wave circuit, and another output of supplementary oscillation triangle wave circuit is used for outputting fault detection's BITE level, the output of voltage integral comparison circuit outputs the state indication signal.
Preferably, the sampling phase detection circuit comprises a first capacitor, one end of the first capacitor is connected with the output end of the interface matching circuit, the other end of the first capacitor is connected with the input end of the first amplifier, the output end of the first amplifier is respectively connected with one end of the first inductor and one end of the second capacitor, the other end of the first inductor is respectively connected with one end of the first resistor and one end of the third capacitor, the other end of the first resistor is respectively connected with one end of the fourth capacitor, one end of the fifth capacitor and one end of the second inductor, the other end of the second inductor is connected with a power supply, the other end of the third capacitor, the other end of the fourth capacitor and the other end of the fifth capacitor are all grounded, the other end of the second capacitor is connected with the input end of the first filter, the output end of the first filter is connected with the input end of the second filter, the output end of the second filter is respectively connected with one end of a second resistor and one input end of a first transformer, the other end of the second resistor and the other input end of the first transformer are grounded, one output end of the first transformer is connected with one end of a sixth capacitor and one end of a seventh capacitor, the other output end of the first transformer is connected with one end of an eighth capacitor and the other end of the seventh capacitor, the tap end of the first transformer is connected with one end of a third resistor, the other end of the sixth capacitor is respectively connected with one end of a fourth resistor and the first input end of a phase detector, the other end of the eighth capacitor is connected with one end of a fifth resistor and the second input end of the phase detector, the other end of the third resistor, the other end of the fourth resistor and the other end of the fifth resistor are grounded, the first output end of the phase detector is connected with one end of an eleventh resistor, the other end of the eleventh resistor is connected with one end of the fifteenth capacitor, one end of the twelfth resistor, one end of the eleventh capacitor, one end of the tenth resistor and the input end of the loop filter circuit, the other end of the tenth resistor is connected with the second output end of the phase discriminator, the third input end of the phase discriminator is connected with one end of the seventh resistor and one end of the thirteenth capacitor, the other end of the seventh resistor is respectively connected with one end of the ninth capacitor, one end of the tenth capacitor, one end of the sixth resistor, one end of the eighth resistor and the power supply, the other end of the sixth resistor is connected with one end of the fifth inductor, the other end of the fifth inductor is connected with one end of the twelfth capacitor and the output end of the voltage stabilizer, the other end of the sixteenth capacitor, the other end of the twelfth capacitor, the other end of the ninth capacitor, the other end of the eighth resistor and the other end of the eighth resistor are all grounded; the other end of the thirteenth capacitor is connected with one end of a ninth resistor, the other end of the ninth resistor is connected with one end of a fourteenth capacitor, the other end of the fourteenth capacitor is respectively connected with one end of a third inductor and the output end of a second amplifier, the input end of the second amplifier is connected with one end of the nineteenth capacitor, the other end of the nineteenth capacitor is connected with the output end of a dielectric oscillating circuit, the other end of the third inductor is connected with one end of the thirteenth resistor, the other end of the thirteenth resistor is respectively connected with one end of a seventeenth capacitor, one end of an eighteenth capacitor and one end of a fourth inductor, the other ends of the seventeenth capacitor and the eighteenth capacitor are grounded, and the other end of the fourth inductor is connected with a power supply.
Preferably, the auxiliary oscillating triangle wave circuit comprises a first chip, the model of the first chip is OP47GS, the pin 1 and the pin 2 of the first chip are both connected with one end of a sixteenth resistor, the other end of the sixteenth resistor is connected with one end of a fifteenth resistor, the other end of the fifteenth resistor is connected with one end of the seventeenth resistor, one end of the twenty first resistor and the pin 10 of the first chip, the other end of the seventeenth resistor is connected with the pin 6 and the pin 7 of the first chip, the pin 3 of the first chip is connected with one end of a twenty first capacitor, two ends of the fourteenth resistor, one end of the twentieth capacitor, the pin 5 of the first chip and an input signal, the other end of the twentieth capacitor and the other end of the twentieth capacitor are grounded, the other end of the twentieth resistor is connected with one end of the twentieth resistor and the pin 11 of the first chip, the other end of the twenty-second resistor is connected with one end of the eighteenth resistor, one end of the nineteenth resistor and the pin 15 of the first chip, the other end of the eighteenth resistor is connected with one end of the twenty-second capacitor, the other ends of the twenty-second resistor and the nineteenth resistor are both connected with the pin 16 of the first chip and output BITE level for fault detection, the pin 14 of the first chip is connected with one end of the twenty-second resistor, one end of the twenty-third resistor and one end of the twenty-fifth capacitor, the other end of the twenty-fifth capacitor is connected with a power supply, the other end of the twenty-third resistor is connected with one end of the twenty-fourth capacitor and the other end of the twenty-second resistor, the other end of the twenty-fourth resistor is connected with one end of the twenty-third capacitor, the other end of the twenty-third capacitor is connected with the input end of the loop filter circuit, the pin 12 of the first chip is connected with one end of the twenty-fifth resistor and one end of the twenty-eighth resistor, the other end of the twenty-fifth resistor and the other end of the twenty-eighth resistor are respectively connected with one end of the twenty-sixth resistor and one end of the twenty-ninth resistor, the other end of the twenty-sixth resistor is connected with one end of the twenty-seventh resistor, the other end of the twenty-seventh resistor is connected with one end of the twenty-sixth capacitor and grounded, and the other end of the twenty-sixth capacitor is connected with the other end of the twenty-ninth resistor and connected with a power supply.
Further, the chip model of the first amplifier is SGA-4586 manufactured by Sirenza corporation of America, the chip model of the second amplifier is SNA-176 manufactured by Sirenza corporation of America, and the chip models of the first filter and the second filter are LFCN-105 manufactured by Mini-Circuits corporation of America.
Further, the voltage integration comparison circuit comprises an operational amplifier, and the chip model of the operational amplifier is OP27GS chip manufactured by Analog Devices of America.
The invention has the beneficial effects that:
1) The invention comprises an interface matching circuit, a sampling phase discrimination circuit, a loop filter circuit, a dielectric oscillation circuit, an isolator output circuit, a voltage integral comparison circuit and an auxiliary oscillation triangular wave circuit.
2) The auxiliary oscillation triangular wave circuit is used for generating triangular wave voltage and is matched with the loop filter circuit, so that an auxiliary capturing function after power is applied or after the loop is out of lock is realized; the loop filter circuit is used for outputting error voltage to the dielectric oscillating circuit, and further improves the stability of the phase-locked loop.
3) The chip model of the first amplifier is SGA-4586 manufactured by Sirenza corporation in U.S. and the chip model of the second amplifier is SNA-176 manufactured by Sirenza corporation in U.S. and the chip models of the first filter and the second filter are LFCN-105 manufactured by Mini-Circuits corporation in U.S. respectively, and the components of the specific models are mutually matched, so that the optimal design of the invention is realized.
Drawings
FIG. 1 is a block diagram of a circuit configuration of the present invention;
FIG. 2 is a schematic circuit diagram of a sampling phase demodulation circuit according to the present invention;
fig. 3 is a schematic circuit diagram of an auxiliary oscillating triangular wave circuit of the present invention.
The reference numerals in the figures have the following meanings:
10-interface matching circuit 20-sampling phase-discrimination circuit 30-loop filter circuit
40-dielectric oscillating circuit 50-isolator output circuit 60-voltage integrating comparator circuit
70-auxiliary oscillation triangular wave circuit
C1 to C26, first to twenty-sixth capacitances
R1-R29-first resistance-twenty-ninth resistance
L1-L5-first to fifth inductances
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
As shown in fig. 1, a synthesizing system of a low-noise low-power consumption point frequency source includes an interface matching circuit 10, a sampling phase-discrimination circuit 20, a loop filter circuit 30, a dielectric oscillating circuit 40, an isolator output circuit 50, a voltage integral comparison circuit 60 and an auxiliary oscillating triangular wave circuit 70, wherein an input end of the interface matching circuit 10 is connected with an input signal, an output end of the interface matching circuit 10 and an output end of the dielectric oscillating circuit 40 are both connected with an input end of the sampling phase-discrimination circuit 20, an output end of the sampling phase-discrimination circuit 20 is connected with an input end of the loop filter circuit 30, an output end of the loop filter circuit 30 is connected with an input end of the dielectric oscillating circuit 40 and an input end of the voltage integral comparison circuit 60, an output end of the dielectric oscillating circuit 40 is connected with an input end of the isolator output circuit 50, one output end of the auxiliary oscillating triangular wave circuit 70 is connected with an input end of the loop filter circuit 30, another output end of the auxiliary oscillating triangular wave circuit 70 is used for outputting a te level of fault detection, and an output end of the voltage integral comparison circuit 60 outputs a state signal.
The sampling phase-discrimination circuit 20, the loop filter circuit 30 and the dielectric oscillation circuit 40 form a phase-locked loop to realize low additional noise performance of output signals, and greatly improve the stability of the system;
the dielectric oscillating circuit 40 achieves low noise performance in the middle and far frequency regions of 8GHz signal output and low power consumption performance of the circuit, an auxiliary oscillating triangular wave circuit 70 is adopted to achieve a reliable capturing function of an auxiliary loop, and a voltage integral comparison circuit 60 is adopted to achieve a state indicating function of locking the loop output frequency and the reference input frequency.
As shown in fig. 2, the sampling phase detection circuit 20 includes a first capacitor C1, one end of the first capacitor C1 is connected to the output end of the interface matching circuit 10, the other end of the first capacitor C1 is connected to the input end of the first amplifier, the output end of the first amplifier is connected to one end of the first inductor L1 and one end of the second capacitor C2, the other end of the first inductor L1 is connected to one end of the first resistor R1 and one end of the third capacitor C3, the other end of the first resistor R1 is connected to one end of the fourth capacitor C4, one end of the fifth capacitor C5 and one end of the second inductor L2, the other end of the second inductor L2 is connected to the power supply, the other end of the third capacitor C3, the other end of the fourth capacitor C4 and the other end of the fifth capacitor C5 are all grounded, the other end of the second capacitor C2 is connected to the input end of the first filter, the output end of the first filter is connected to the input end of the second filter, the output end of the second filter is respectively connected with one end of a second resistor R2 and one input end of a first transformer, the other end of the second resistor R2 and the other input end of the first transformer are grounded, one output end of the first transformer is connected with one end of a sixth capacitor C6 and one end of a seventh capacitor C7, the other output end of the first transformer is connected with one end of an eighth capacitor C8 and the other end of the seventh capacitor C7, the tap end of the first transformer is connected with one end of a third resistor R3, the other end of the sixth capacitor C6 is respectively connected with one end of a fourth resistor R4 and the first input end of the phase discriminator, the other end of the eighth capacitor C8 is connected with one end of a fifth resistor R5 and the second input end of the phase discriminator, the other end of the third resistor R3, the other end of the fourth resistor R4 and the other end of the fifth resistor R5 are grounded, the first output end of the phase detector is connected with one end of an eleventh resistor R11, the other end of the eleventh resistor R11 is connected with one end of a fifteenth capacitor C15, one end of a twelfth resistor R12, one end of the eleventh capacitor C11, one end of a tenth resistor R10 and an input end of a loop filter circuit 30, the other end of the tenth resistor R10 is connected with the second output end of the phase detector, the third input end of the phase detector is connected with one end of a seventh resistor R7 and one end of a thirteenth capacitor C13, the other end of the seventh resistor R7 is respectively connected with one end of a ninth capacitor C9, one end of a tenth capacitor C10, one end of a sixth resistor R6, one end of an eighth resistor R8 and a power supply, the other end of the sixth resistor R6 is connected with one end of a fifth inductor L5, the other end of the fifth inductor L5 is connected with one end of the twelfth capacitor C12 and the output end of a voltage stabilizer, the input end of the voltage stabilizer is connected with one end of a sixteenth capacitor C16 and the power supply, and the other ends of the sixteenth capacitor C16, the twelfth capacitor C12, the other ends of the eighth capacitor C8 and the eighth capacitor C8 are all connected with the ground; the other end of the thirteenth capacitor C13 is connected with one end of a ninth resistor R9, the other end of the ninth resistor R9 is connected with one end of a fourteenth capacitor C14, the other end of the fourteenth capacitor C14 is respectively connected with one end of a third inductor L3 and the output end of a second amplifier, the input end of the second amplifier is connected with one end of a nineteenth capacitor C19, the other end of the nineteenth capacitor C19 is connected with the output end of the dielectric oscillating circuit 40, the other end of the third inductor L3 is connected with one end of the thirteenth resistor R13, the other end of the thirteenth resistor R13 is respectively connected with one end of a seventeenth capacitor C17, one end of an eighteenth capacitor C18 and one end of a fourth inductor L4, the other end of the seventeenth capacitor C17 and the other end of the eighteenth capacitor C18 are grounded, and the other end of the fourth inductor L4 is connected with a power supply.
As shown in fig. 3, the auxiliary oscillating triangular wave circuit 70 includes a first chip, the type of the first chip is OP47GS, the pin 1 and the pin 2 of the first chip are connected to one end of a sixteenth resistor R16, the other end of the sixteenth resistor R16 is connected to one end of a fifteenth resistor R15, the other end of the fifteenth resistor R15 is connected to one end of the seventeenth resistor R17, one end of the twenty first resistor R21 and the pin 10 of the first chip, the other end of the seventeenth resistor R17 is connected to the pin 6 and the pin 7 of the first chip, the pin 3 of the first chip is connected to one end of a first capacitor C21, the pin 5 of the first chip and the input signal, the frequency of the input signal is 100MHz, the amplitude is 0dBm, the other end of the first capacitor C21 and the other end of the twenty capacitor C20 are all grounded, the other end of the twenty first resistor R21 is connected to one end of the twenty first resistor R20 and the pin 11 of the first chip, the other end of the twenty first resistor R20 is connected to the twenty fourth resistor R25, the twenty fourth resistor R23 is connected to the other end of the twenty capacitor C22 and the twenty capacitor C23, the twenty fourth resistor R23 is connected to the twenty capacitor C23, the twenty capacitor C is connected to the twenty capacitor C23, and the twenty capacitor C23 is connected to the twenty capacitor C23, and the twenty capacitor is connected to the twenty capacitor R23, the other end of the twenty-fourth capacitor C24 is connected to one end of the twenty-fourth resistor R24 and the other end of the twenty-second resistor R22, the other end of the twenty-fourth resistor R24 is connected to one end of the twenty-third capacitor C23, the other end of the twenty-third capacitor C23 is connected to the input end of the loop filter circuit 30, the pin 12 of the first chip is connected to one end of the twenty-fifth resistor R25 and one end of the twenty-eighth resistor R28, the other end of the twenty-fifth resistor R25 and the other end of the twenty-eighth resistor R28 are respectively connected to one end of the twenty-sixth resistor R26 and one end of the twenty-ninth resistor R29, the other end of the twenty-sixth resistor R26 is connected to one end of the twenty-seventh resistor R27, the other end of the twenty-seventh resistor R27 is connected to one end of the twenty-sixth capacitor C26 and grounded, and the other end of the twenty-sixth resistor C26 is connected to the other end of the twenty-ninth resistor R29 and to the power supply.
The chip model of the first amplifier is SGA-4586 manufactured by Sirenza corporation of America, the chip model of the second amplifier is SNA-176 manufactured by Sirenza corporation of America, and the chip models of the first filter and the second filter are LFCN-105 manufactured by Mini-Circuits corporation of America.
The voltage integral comparison circuit 60 includes an operational amplifier having a chip model of OP27GS chip manufactured by Analog Devices, inc.
Specifically, the invention takes a 100MHz constant temperature crystal oscillator signal as a reference input signal, the reference input signal carries out amplitude shaping, frequency spectrum shaping and interface unbalance to balance conversion treatment on the reference signal through the interface matching circuit 10, the circuit is allowed to normally work when the power change range of the external input signal is larger, the reference input signal is input into the sampling phase demodulation circuit 20 to realize the sampling operation of the microwave signal, the output voltage of the sampling phase demodulation circuit 20 is about 500mv, and the use requirement of the sampling frequency and the working bandwidth can be met. The sampling phase-discrimination circuit 20, the loop filter circuit 30 and the dielectric medium oscillation circuit 40 form a phase-locked loop, the dielectric medium oscillation circuit 40 adopts a parallel feedback high-Q dielectric medium resonance oscillation source based on the fine tuning of a varactor diode, the adjusting voltage range is about 10V, the frequency adjusting range is about 10MHz, the oscillation output end of the dielectric medium oscillation circuit is greatly improved by passing through the isolator output circuit 50, the load traction capacity of the oscillator is greatly improved, the output power of the dielectric medium oscillation circuit 40 is +13dBm, and a path of signal about 0dBm is coupled and output for the sampling phase-discrimination circuit 20, the loop filter circuit 30 receives the output signal from the sampling phase-discrimination circuit 20, the loop filter circuit 30 adopts the combination of an active low-pass filter and a passive low-pass filter, the output error voltage is sent to the voltage integral comparison circuit 60, the voltage integral comparison circuit 60 generates a locking state indication signal output of the loop, the loop circuit realizes the stable work, the auxiliary oscillation triangular wave circuit 70 generates a symmetrical triangular wave voltage with the period of 5ms and the amplitude of 12V, and the loop filter circuit 30 works together to realize the auxiliary function after the power-up or after the loop lock is lost.
In summary, the invention can generate the 8GHz point frequency source with low noise and low power consumption, the output frequency is 8GHz, and the frequency in the output 10MHz range can be tracked; the phase noise is less than or equal to-110 dBc/Hz@1KHz, less than or equal to-115 dBc/Hz@10KHz, less than or equal to-120 dBc/Hz@100KHz, less than or equal to-130 dBc/Hz@1MHz; clutter suppression is more than or equal to 75dBc; harmonic suppression is more than or equal to 20dBc; output power +12dBm+ -1 dB; the current is less than 200mA (+12V operation); the input adopts a 100MHz constant temperature crystal oscillator reference signal, the power is 0 dBm+/-5 dB, the phase noise is less than or equal to-155 dBc/Hz@1KHz, and the invention can be widely applied to the technical field of microwave low-noise frequency synthesizers.
Claims (3)
1. A synthesis system of a low-noise low-power consumption point frequency source is characterized in that: the device comprises an interface matching circuit (10), a sampling phase discrimination circuit (20), a loop filter circuit (30), a dielectric medium oscillation circuit (40), an isolator output circuit (50), a voltage integration comparison circuit (60) and an auxiliary oscillation triangular wave circuit (70), wherein the input end of the interface matching circuit (10) is connected with an input signal, the output end of the interface matching circuit (10) and the output end of the dielectric medium oscillation circuit (40) are both connected with the input end of the sampling phase discrimination circuit (20), the output end of the sampling phase discrimination circuit (20) is connected with the input end of the loop filter circuit (30), the output end of the loop filter circuit (30) is connected with the input end of the dielectric medium oscillation circuit (40) and the input end of the voltage integration comparison circuit (60), the output end of the dielectric medium oscillation circuit (40) is connected with the input end of the isolator output circuit (50), one output end of the auxiliary oscillation triangular wave circuit (70) is connected with the input end of the loop filter circuit (30), and the other output end of the auxiliary oscillation triangular wave circuit (70) is used for outputting a BITE level detection output signal indicating the output state of the integrated voltage comparison circuit (60);
the sampling phase discrimination circuit (20) comprises a first capacitor (C1), one end of the first capacitor (C1) is connected with the output end of the interface matching circuit (10), the other end of the first capacitor (C1) is connected with the input end of a first amplifier, the output end of the first amplifier is respectively connected with one end of a first inductor (L1) and one end of a second capacitor (C2), the other end of the first inductor (L1) is respectively connected with one end of a first resistor (R1) and one end of a third capacitor (C3), the other end of the first resistor (R1) is respectively connected with one end of a fourth capacitor (C4), one end of a fifth capacitor (C5) and one end of a second inductor (L2), the other end of the second inductor (L2) is connected with a power supply, the other end of the third capacitor (C3), the other end of the fourth capacitor (C4) and the other end of the fifth capacitor (C5) are grounded, the other end of the second capacitor (C2) is connected with the input end of the first filter, the output end of the first filter is connected with the input end of the second filter, the output end of the second filter is respectively connected with one end of the second resistor (R2) and one input end of the first transformer, the other end of the second resistor (R2) and the other input end of the first transformer are grounded, one output end of the first transformer is connected with one end of the sixth capacitor (C6) and one end of the seventh capacitor (C7), the other output end of the first transformer is connected with one end of an eighth capacitor (C8) and the other end of a seventh capacitor (C7), the tap end of the first transformer is connected with one end of a third resistor (R3), the other end of the sixth capacitor (C6) is respectively connected with one end of a fourth resistor (R4) and the first input end of a phase discriminator, the other end of the eighth capacitor (C8) is connected with one end of a fifth resistor (R5) and the second input end of a phase discriminator, the other end of the third resistor (R3), the other end of the fourth resistor (R4) and the other end of the fifth resistor (R5) are grounded, the first output end of the phase discriminator is connected with one end of an eleventh resistor (R11), the other end of the eleventh resistor (R11) is connected with one end of a fifteenth capacitor (C15), one end of a twelfth resistor (R12), one end of the eleventh resistor (C11), one end of the tenth resistor (R10) and the input end of a loop filter circuit (30), the other end of the tenth resistor (R10) is connected with the other end of the eighth resistor (R10), the other end of the eighth resistor (R10) is connected with the eighth resistor (R11), the other end of the eighth resistor (R10) is connected with the eighth resistor (R7), the eighth resistor (R7) is connected with the eighth end of the eighth resistor (R9, the other end of the sixth resistor (R6) is connected with one end of a fifth inductor (L5), the other end of the fifth inductor (L5) is connected with one end of a twelfth capacitor (C12) and the output end of the voltage stabilizer, the input end of the voltage stabilizer is connected with one end of a sixteenth capacitor (C16) and a power supply, and the other end of the sixteenth capacitor (C16), the other end of the twelfth capacitor (C12), the other end of a ninth capacitor (C9), the other end of a tenth capacitor (C10) and the other end of an eighth resistor (R8) are grounded; the other end of the thirteenth capacitor (C13) is connected with one end of a ninth resistor (R9), the other end of the ninth resistor (R9) is connected with one end of a fourteenth capacitor (C14), the other end of the fourteenth capacitor (C14) is respectively connected with one end of a third inductor (L3) and the output end of a second amplifier, the input end of the second amplifier is connected with one end of a nineteenth capacitor (C19), the other end of the nineteenth capacitor (C19) is connected with the output end of a dielectric oscillating circuit (40), the other end of the third inductor (L3) is connected with one end of a thirteenth resistor (R13), the other end of the thirteenth resistor (R13) is respectively connected with one end of a seventeenth capacitor (C17), one end of an eighteenth capacitor (C18) and one end of a fourth inductor (L4), the other end of the seventeenth capacitor (C17) and the other end of the eighteenth capacitor (C18) are grounded, and the other end of the fourth inductor (L4) is connected with a power supply;
the auxiliary oscillation triangular wave circuit (70) comprises a first chip, the model of the first chip is OP47GS, a pin 1 and a pin 2 of the first chip are both connected with one end of a sixteenth resistor (R16), the other end of the sixteenth resistor (R16) is connected with one end of a fifteenth resistor (R15), the other end of the fifteenth resistor (R15) is connected with one end of a seventeenth resistor (R17), one end of a twenty-first resistor (R21) and a pin 10 of the first chip, the other end of the seventeenth resistor (R17) is connected with a pin 6 and a pin 7 of the first chip, a pin 3 of the first chip is connected with one end of a twenty-first capacitor (C21), two ends of a fourteenth resistor (R14), one end of a twenty-eighth capacitor (C20), a pin 5 of the first chip and an input signal, the other end of the twenty-first capacitor (C21) and the other end of the twentieth capacitor (C20) are grounded, the other end of the twenty-first resistor (R21) is connected with one end of the twentieth resistor (R20) and the pin 11 of the first chip, the other end of the twentieth resistor (R20) is connected with one end of the eighteenth resistor (R18) and one end of the nineteenth resistor (R19) and the pin 15 of the first chip, the other end of the eighteenth resistor (R18) is connected with one end of the twenty-second capacitor (C22), the other end of the twenty-second capacitor (C22) and the other end of the nineteenth resistor (R19) are connected with the pin 16 of the first chip and output BITE level for fault detection, the pin 14 of the first chip is connected with one end of a twenty-second resistor (R22), one end of a twenty-third resistor (R23) and one end of a twenty-fifth capacitor (C25), the other end of the twenty-fifth capacitor (C25) is connected with a power supply, the other end of the twenty-third resistor (R23) is connected with one end of a twenty-fourth resistor (C24) and the other end of a twenty-second resistor (R22), the other end of the twenty-fourth resistor (R24) is connected with one end of a twenty-third capacitor (C23), the other end of the twenty-third capacitor (C23) is connected with the input end of a loop filter circuit (30), the pin 12 of the first chip is connected with one end of a twenty-fifth resistor (R25) and one end of a twenty-eighth resistor (R28), the other end of the twenty-fifth resistor (R25) is connected with one end of a twenty-sixth resistor (R26), the other end of the twenty-eighth resistor (R28) is respectively connected with one end of the twenty-sixth resistor (R26), the other end of the twenty-eighth resistor (R26) is connected with the twenty-eighth resistor (R26), and the other end of the twenty-sixth resistor (R26) is connected with the other end of the twenty-eighth resistor (R26) is connected with the twenty-eighth resistor (R26).
2. The system for synthesizing a low noise, low power point source of claim 1, wherein: the chip model of the first amplifier is SGA-4586 manufactured by Sirenza corporation of America, the chip model of the second amplifier is SNA-176 manufactured by Sirenza corporation of America, and the chip models of the first filter and the second filter are LFCN-105 manufactured by Mini-Circuits corporation of America.
3. The system for synthesizing a low noise, low power point source of claim 1, wherein: the voltage integral comparison circuit (60) includes an operational amplifier having a chip model of OP27GS chip manufactured by analog devices, usa.
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104702275A (en) * | 2015-04-01 | 2015-06-10 | 成都西蒙电子技术有限公司 | Low-phase-noise microwave frequency source circuit and equipment and method |
| CN105119599A (en) * | 2015-09-01 | 2015-12-02 | 安徽四创电子股份有限公司 | Broadband low-stepping high-speed frequency synthesizer based on DDS (Direct Digital Synthesizer) and PLL (Phase Locked Loop) |
| WO2016019642A1 (en) * | 2014-08-07 | 2016-02-11 | 中兴通讯股份有限公司 | Device for preventing current from flowing backward |
| CN205123709U (en) * | 2015-09-30 | 2016-03-30 | 安徽四创电子股份有限公司 | High -speed frequency hopping synthesizer of multiple ring way down coversion type phase locking |
| CN206272598U (en) * | 2016-11-24 | 2017-06-20 | 安徽四创电子股份有限公司 | A kind of synthesis system in low-noise low-power consumption point frequency source |
-
2016
- 2016-11-24 CN CN201611051365.2A patent/CN106452434B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016019642A1 (en) * | 2014-08-07 | 2016-02-11 | 中兴通讯股份有限公司 | Device for preventing current from flowing backward |
| CN104702275A (en) * | 2015-04-01 | 2015-06-10 | 成都西蒙电子技术有限公司 | Low-phase-noise microwave frequency source circuit and equipment and method |
| CN105119599A (en) * | 2015-09-01 | 2015-12-02 | 安徽四创电子股份有限公司 | Broadband low-stepping high-speed frequency synthesizer based on DDS (Direct Digital Synthesizer) and PLL (Phase Locked Loop) |
| CN205123709U (en) * | 2015-09-30 | 2016-03-30 | 安徽四创电子股份有限公司 | High -speed frequency hopping synthesizer of multiple ring way down coversion type phase locking |
| CN206272598U (en) * | 2016-11-24 | 2017-06-20 | 安徽四创电子股份有限公司 | A kind of synthesis system in low-noise low-power consumption point frequency source |
Non-Patent Citations (1)
| Title |
|---|
| 郭文胜 ; 袁彪 ; .小型化取样锁相介质振荡器的研制.半导体技术.2013,(07),全文. * |
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