CN109391334A - Room temperature for radio integration test module calibrates circuit - Google Patents
Room temperature for radio integration test module calibrates circuit Download PDFInfo
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- CN109391334A CN109391334A CN201811551129.6A CN201811551129A CN109391334A CN 109391334 A CN109391334 A CN 109391334A CN 201811551129 A CN201811551129 A CN 201811551129A CN 109391334 A CN109391334 A CN 109391334A
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- 238000012360 testing method Methods 0.000 title claims abstract description 24
- 230000010354 integration Effects 0.000 title claims abstract description 13
- 230000003321 amplification Effects 0.000 claims abstract description 19
- 238000003199 nucleic acid amplification method Methods 0.000 claims abstract description 19
- 239000013078 crystal Substances 0.000 claims abstract description 11
- 230000005611 electricity Effects 0.000 claims description 2
- 238000005259 measurement Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 102220486294 Mannose-1-phosphate guanyltransferase beta_N20A_mutation Human genes 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011990 functional testing Methods 0.000 description 1
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- 238000012986 modification Methods 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
Abstract
The present invention relates to testing radio fields, and in particular to a kind of room temperature calibration circuit for radio integration test module, including digital analog converter, the first operational amplifier circuit, second operational amplifier circuit, crystal oscillator, clock buffer circuit, trigger, filter circuit, filter amplification circuit；The input terminal that signal enters the digital analog converter is controlled, the signal of the first output end output of the digital analog converter generates required amplitude control signal as output after first operational amplifier circuit amplification；For the signal of the second output terminal output of the digital analog converter after second operational amplifier circuit amplification, output frequency controls signal；The Frequency and Amplitude for providing the operation is stable to radio integration test module calibrates circuit, realizes and calibrates on a point frequency to complete machine, to achieve the purpose that the signal in the qualified target zone of output.
Description
Technical field
The present invention relates to a kind of testing radio device, in particular to a kind of room temperature for radio comprehensive test device
Calibrate circuit.
Background technique
Electronic product is very flourishing now, and demand is also comparable big.It is usually big by factory when manufacturing electronic product
After amount manufacture, then via the various functions of test organization's test electronic product.Only pass through the electronic product of all test items
It can dispatch from the factory and send to client, to ensure that dispatched from the factory electronic product maintains certain level.However, existing in communication device at present
Field test equipment uses single test, and an instrument only measures a few functions, can not achieve the measurement of multiple functions.Cause
This, needs to study the testing radio device of one kind of multiple functional tests, while realizing multiple functions measurement, it is necessary to set
Count a kind of Frequency and Amplitude calibration circuit that can make test device the operation is stable.
Summary of the invention
Goal of the invention of the invention is: in order to solution must not on same instrument to the measurement of multiple functions the problem of,
A kind of room temperature calibration circuit for radio comprehensive measurement instrument is provided.
In order to achieve the above-mentioned object of the invention, the present invention provides following technical schemes:
A kind of room temperature calibration circuit for radio integration test module, including digital analog converter, the first operational amplifier circuit,
Second operational amplifier circuit, crystal oscillator, clock buffer circuit, trigger, filter circuit, filter amplification circuit；
Control the input terminal that signal enters the digital analog converter, the letter of the first output end output of the digital analog converter
Number after first operational amplifier circuit amplification, required amplitude control signal is generated as output；
The signal of the second output terminal output of the digital analog converter is after second operational amplifier circuit amplification, output frequency
Rate controls signal；Frequency control signal enters the crystal oscillator, and the crystal oscillator provides original clock signal to the clock buffer
With the filter amplification circuit；First output end of clock buffer connects the trigger, the letter of the trigger output
2 sub-frequency clock signals of 40M are generated number after filter circuit filters；The second output terminal of the clock buffer exports
The clock signal of 80M；The first output end of filter amplification circuit output signal 1, second output terminal output signal 2；
First operational amplifier circuit includes the first transport and placing device, the non-inverting input terminal and digital analog converter of first transport and placing device
Output end connection；Meanwhile the non-inverting input terminal of first transport and placing device also passes through resistance eutral grounding；The reverse phase of first transport and placing device is defeated
Enter end by resistance eutral grounding, while also connecting by resistance with itself output end.
Second operational amplifier circuit includes the second transport and placing device, and the non-inverting input terminal and the digital-to-analogue of second transport and placing device turn
The output end of parallel operation connects, and the inverting input terminal of second transport and placing device is connect with itself output end.
The clock buffer circuit includes amplifier and clock buffer, and original clock signal enters amplifier in,
Amplifier out connects clock buffer, and amplifier out is connect with input terminal by resistance；The clock buffer
One output end connects resistance, exports the clock signal of 80M；
The trigger is D flip-flop, and the clock buffer second output terminal connects the port of the trigger
CLK, the port Q output of trigger export the signal of 40M, the port one of trigger by filter circuit
The port D of Q connection trigger.
Compared with prior art, beneficial effects of the present invention: the present invention provides a kind of for radio integration test module
Room temperature calibrate circuit, amplitude control signal and frequency control signal are generated according to control signal with digital analog converter, to wireless
Electric integration test module provides the Frequency and Amplitude calibration circuit of the operation is stable, realizes and calibrates on a point frequency to complete machine,
To achieve the purpose that the signal in the qualified target zone of output.
Detailed description of the invention:
Fig. 1 is the principle of the present invention block diagram
Fig. 2 is the circuit connection diagram of digital analog converter, the first operational amplifier circuit and the second operational amplifier circuit.
Fig. 3 is the circuit connection diagram of crystal oscillator, clock buffer circuit, trigger, filter circuit and filter amplification circuit.
Specific embodiment
Below with reference to test example and specific embodiment, the present invention is described in further detail.But this should not be understood
It is all that this is belonged to based on the technology that the content of present invention is realized for the scope of the above subject matter of the present invention is limited to the following embodiments
The range of invention.
A kind of room temperature calibration circuit for radio integration test module, including digital analog converter, the first operational amplifier circuit,
Second operational amplifier circuit, crystal oscillator, clock buffer circuit, trigger, filter circuit, filter amplification circuit；
If Fig. 2, the port clk of the digital analog converter D6 receive clock control signal, port Din receives control instruction letter
Number, port/cs receiving sheet selected control signal；The signal of the port Voutb output of the digital analog converter D6 passes through described first
Required amplitude control signal is exported after operational amplifier circuit amplification；The signal warp of the port Vouta output of the digital analog converter D6
After crossing the second operational amplifier circuit amplification, output frequency controls signal.
First operational amplifier circuit includes the first transport and placing device N20A, the homophase input port 3 of the first transport and placing device N20A
It is connect with the output port Voutb of digital analog converter D6；Meanwhile the homophase input port 3 of first transport and placing device also passes through electricity
Hinder R93 ground connection；The anti-phase input port 2 of first transport and placing device is grounded by resistance R94, while also defeated with itself by resistance R99
Exit port 1 connects.
Second operational amplifier circuit includes the second transport and placing device N20B, the homophase input port 5 of the second transport and placing device N20B
It is connect with the output port 5 of the digital analog converter, the anti-phase input port 6 of second transport and placing device and itself output port 7
Connection.
Such as Fig. 3, frequency control signal enters the port Vc of the crystal oscillator N17, and the port Vout of the crystal oscillator N17 exports former
Beginning clock signal is supplied to the clock buffer circuit and the filter amplification circuit；The clock buffer circuit includes amplifier
N18 and clock buffer N16, original clock signal enter amplifier N18 input terminal, and it is slow that amplifier N18 output end connects clock
The port CLKIN of device N16 is rushed, amplifier N18 output end is connect with input terminal by resistance R91；The clock buffer N16's
1Y0 output in port exports the signal of 80M by resistance R81；The port 1Y1 connection trigger N19's of the clock buffer N16
The port Q output of port CLK, trigger N19 export the signal of 40M, the port Q connection triggering of one device of triggering by filter circuit
The port D of device；The first output end of filter amplification circuit output signal 1, second output terminal output signal 2.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Made any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within mind and principle.
Claims (5)
1. a kind of room temperature for radio integration test module calibrates circuit, which is characterized in that including digital analog converter, first
Operational amplifier circuit, the second operational amplifier circuit, crystal oscillator, clock buffer circuit, trigger, filter circuit, filter amplification circuit；
Control the input terminal that signal enters the digital analog converter, the signal warp of the first output end output of the digital analog converter
After crossing the first operational amplifier circuit amplification, required amplitude control signal is generated as output；
The signal of the second output terminal output of the digital analog converter is after second operational amplifier circuit amplification, output frequency control
Signal processed；Frequency control signal enters the crystal oscillator, and the crystal oscillator provides original clock signal to the clock buffer and institute
State filter amplification circuit；First output end of clock buffer connects the trigger, the signal warp of the trigger output
Cross the clock signal that 40M is generated after filter circuit filters；The clock letter of the second output terminal output 80M of the clock buffer
Number；The first output end of filter amplification circuit output signal 1, second output terminal output signal 2.
2. the room temperature according to claim 1 for radio integration test module calibrates circuit, which is characterized in that described
First operational amplifier circuit includes the first transport and placing device, and the non-inverting input terminal of first transport and placing device and the output end of digital analog converter connect
It connects；Meanwhile the non-inverting input terminal of first transport and placing device also passes through resistance eutral grounding；The inverting input terminal of first transport and placing device passes through electricity
Resistance ground connection, while also being connect by resistance with itself output end.
3. the room temperature according to claim 1 for radio integration test module calibrates circuit, which is characterized in that described
Second operational amplifier circuit includes the second transport and placing device, the non-inverting input terminal of second transport and placing device and the output end of the digital analog converter
Connection, the inverting input terminal of second transport and placing device are connect with itself output end.
4. the room temperature according to claim 1 for radio integration test module calibrates circuit, which is characterized in that described
Clock buffer circuit includes amplifier and clock buffer, and original clock signal enters amplifier in, amplifier out
Clock buffer is connected, amplifier out is connect with input terminal by resistance；The first output end of clock buffer connection
Resistance exports the clock signal of 80M.
5. the room temperature according to claim 4 for radio integration test module calibrates circuit, which is characterized in that described
Trigger is D flip-flop, and the clock buffer second output terminal connects the port CLK of the trigger, the end of trigger
Mouth Q output exports the signal of 40M, the port of trigger by filter circuitConnect the port D of trigger.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811551129.6A CN109391334A (en) | 2018-12-18 | 2018-12-18 | Room temperature for radio integration test module calibrates circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811551129.6A CN109391334A (en) | 2018-12-18 | 2018-12-18 | Room temperature for radio integration test module calibrates circuit |
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| Publication Number | Publication Date |
|---|---|
| CN109391334A true CN109391334A (en) | 2019-02-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811551129.6A Pending CN109391334A (en) | 2018-12-18 | 2018-12-18 | Room temperature for radio integration test module calibrates circuit |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1773855A (en) * | 2004-11-12 | 2006-05-17 | 鸿富锦精密工业（深圳）有限公司 | Clock signal generator |
| CN105306091A (en) * | 2015-11-13 | 2016-02-03 | 成都前锋电子仪器有限责任公司 | Crystal oscillation frequency dividing circuit for radio comprehensive measurement instrument radio-frequency local oscillation circuit |
| CN107769773A (en) * | 2017-12-08 | 2018-03-06 | 成都前锋电子仪器有限责任公司 | A kind of clock distribution circuit |
| CN207475514U (en) * | 2017-12-08 | 2018-06-08 | 成都前锋电子仪器有限责任公司 | A kind of Frequency and Amplitude calibrates circuit |
-
2018
- 2018-12-18 CN CN201811551129.6A patent/CN109391334A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1773855A (en) * | 2004-11-12 | 2006-05-17 | 鸿富锦精密工业（深圳）有限公司 | Clock signal generator |
| CN105306091A (en) * | 2015-11-13 | 2016-02-03 | 成都前锋电子仪器有限责任公司 | Crystal oscillation frequency dividing circuit for radio comprehensive measurement instrument radio-frequency local oscillation circuit |
| CN107769773A (en) * | 2017-12-08 | 2018-03-06 | 成都前锋电子仪器有限责任公司 | A kind of clock distribution circuit |
| CN207475514U (en) * | 2017-12-08 | 2018-06-08 | 成都前锋电子仪器有限责任公司 | A kind of Frequency and Amplitude calibrates circuit |
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