CN207866969U - A kind of crystal oscillator high temperature aging equipment - Google Patents
A kind of crystal oscillator high temperature aging equipment Download PDFInfo
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- CN207866969U CN207866969U CN201820238552.XU CN201820238552U CN207866969U CN 207866969 U CN207866969 U CN 207866969U CN 201820238552 U CN201820238552 U CN 201820238552U CN 207866969 U CN207866969 U CN 207866969U
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- 239000013078 crystal Substances 0.000 title claims abstract description 53
- 230000032683 aging Effects 0.000 title claims abstract description 12
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 230000002452 interceptive effect Effects 0.000 abstract description 2
- 238000005259 measurement Methods 0.000 abstract description 2
- 230000005611 electricity Effects 0.000 description 5
- 238000012360 testing method Methods 0.000 description 3
- 230000009514 concussion Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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Abstract
The utility model is related to electronic product aging equipments, and in particular to a kind of crystal oscillator high-temperature burn-in apparatus.A kind of crystal oscillator high temperature aging equipment in the utility model, including the match circuit, operational amplifier, electronic switch, host computer and the secondary power supply that are sequentially connected, crystal oscillator side is connected with secondary power supply, the other side is connected with match circuit；Crystal oscillator working power, enable signal are provided by secondary power supply；Match circuit includes amplifier U2, the first capacitance C1,3rd resistor R3, the 5th resistance R5, the 9th resistance R9, thirteenth resistor R13 and the 7th capacitance C7.The beneficial effects of the utility model：Can measure simultaneously different type, different size crystal oscillator, frequency change rate under the high temperature conditions and stability between different crystal oscillators independently of each other avoid interfering, quantity is at most up to 1024 pieces, and the accuracy of measurement is within 2 PPM.
Description
Technical field
The utility model is related to electronic product aging equipments, and in particular to a kind of crystal oscillator high-temperature burn-in apparatus.
Background technology
In order to exclude electronic product initial failure, need to carry out electronic product in research and development of products and production process seasoned
Test, crystal oscillator is as accurate timing element, and progress aged test is essential before dispatching from the factory, existing crystal oscillator aging equipment
The crystal oscillator being easy between different model, specification in testing interferes with each other.
Utility model content
In order to solve the shortcomings of the prior art, the utility model provides the crystal oscillator that a kind of stability is good, interference is few
High-temperature burn-in apparatus.
A kind of crystal oscillator high temperature aging equipment in the utility model, including be sequentially connected match circuit, operational amplifier,
Electronic switch, host computer and secondary power supply, crystal oscillator side is connected with secondary power supply, the other side is connected with match circuit；Crystal oscillator work
Make power supply, enable signal is provided by secondary power supply；Match circuit includes amplifier U2, the first capacitance C1,3rd resistor R3, the 5th
Resistance R5, the 9th resistance R9, thirteenth resistor R13 and the 7th capacitance C7, the 9th one end resistance R9 ground connection, the other end and fuse
Resistance R11 and the 4th crystal oscillator pin P4 Plug is connected, the eleventh resistor R11 other ends and the 5th capacitance C5, the 8th resistance R8,
Twelfth resistor R12, the 4th resistance R4 and the 5th crystal oscillator pin P5 Plug are connected, the twelfth resistor R12 other ends and the first crystalline substance
Vibration tube foot P1 Plug are connected, and the 8th resistance R8 other ends are connected with the 6th resistance R6, and the 6th resistance R6 other ends work with crystal oscillator
Power supply GVCC is connected, the 4th resistance R4 other ends and second resistance R2, the 4th capacitance C4, the 7th resistance R7 and the second crystal oscillator pin
P2 Plug are connected, and the 4th capacitance C4 other ends ground connection, the 7th resistance R7 other ends are connected with third crystal oscillator pin P3 Plug, put
It is big that device U2 output pins OUT passes sequentially through thirteenth resistor R13, the 7th capacitance C7 is connected with frequency meter, the VCC on amplifier U2
Pin is connected with power supply VCC, VCC pins by being grounded after the 6th capacitance C6, the tenth three-prongs of amplifier U2 and first resistor R1,
5th resistance R5 and the second capacitance C2 is connected, second capacitance C2 other ends ground connection, another termination powers of first resistor R1, the 5th electricity
The resistance R5 other ends are connected with third capacitance C3, the 15th pins of amplifier U2, the third capacitance C3 other ends and the first capacitance C1, the
Three resistance R3 are connected, and the first capacitance C1 other ends, the 3rd resistor R3 other ends are connected with the first crystal oscillator pin P1 Plug, and first
The one end diode D1 is connected with the VSS pins on amplifier U2, the other end is connected with the tenth resistance R10, and the tenth resistance R10 is another
End is connected with the 16th pins of amplifier U2, electronic switch.Send instructions under host computer, generates secondary power supply and power to crystal oscillator, two
Ranging from 1V ~ 20V of level power supply can also issue enable signal simultaneously for enabled crystal oscillator is needed according to crystal oscillator type, old
After the crystal oscillator concussion of refining generates frequency, pass through match circuit, operational amplifier and electronic switch in burn-in board etc. work
After making circuit, host computer is returned to the frequency values examined are returned, host computer calculates frequency change rate and stability etc., then basis
The error amount bound of setting can accurately and effectively judge to show failure stations.
The beneficial effects of the utility model：Can measure simultaneously different type, different size crystal oscillator, under the high temperature conditions
Frequency change rate and stability between different crystal oscillators independently of each other avoid interfering, quantity at most up to 1024 pieces, measurement
Accuracy is within 2 PPM.
Description of the drawings
Fig. 1 is a kind of crystal oscillator high temperature aging equipment principle schematic diagram.
Fig. 2 is a kind of crystal oscillator high temperature aging circuitry schematic diagram.
Specific implementation mode
The utility model is described in further detail below in conjunction with the accompanying drawings, but this should not be interpreted as the utility model
The range of above-mentioned theme is only limitted to above-described embodiment.
As shown in Figs. 1-2, a kind of crystal oscillator high temperature aging equipment, including the match circuit, operational amplifier, the electricity that are sequentially connected
Sub switch, host computer and secondary power supply, crystal oscillator side is connected with secondary power supply, the other side is connected with match circuit；Crystal oscillator works
Power supply, enable signal are provided by secondary power supply；Match circuit includes amplifier U2, the first capacitance C1,3rd resistor R3, the 5th electricity
Hinder R5, the 9th resistance R9, thirteenth resistor R13 and the 7th capacitance C7, the 9th one end resistance R9 ground connection, the other end and fuse electricity
It hinders R11 and the 4th crystal oscillator pin P4 Plug to be connected, the eleventh resistor R11 other ends and the 5th capacitance C5, the 8th resistance R8, the
12 resistance R12, the 4th resistance R4 and the 5th crystal oscillator pin P5 Plug are connected, the twelfth resistor R12 other ends and the first crystal oscillator
Pin P1 Plug are connected, and the 8th resistance R8 other ends are connected with the 6th resistance R6, the 6th resistance R6 other ends and crystal oscillator work electricity
Source GVCC is connected, the 4th resistance R4 other ends and second resistance R2, the 4th capacitance C4, the 7th resistance R7 and the second crystal oscillator pin P2
Plug is connected, and the 4th capacitance C4 other ends ground connection, the 7th resistance R7 other ends are connected with third crystal oscillator pin P3 Plug, amplify
Device U2 output pins OUT passes sequentially through thirteenth resistor R13, the 7th capacitance C7 is connected with frequency meter, the VCC pipes on amplifier U2
Foot is connected with power supply VCC, and VCC pins after the 6th capacitance C6 by being grounded, the tenth three-prongs of amplifier U2 and first resistor R1, the
Five resistance R5 and the second capacitance C2 are connected, second capacitance C2 other ends ground connection, another termination powers of first resistor R1, the 5th resistance
The R5 other ends are connected with third capacitance C3, the 15th pins of amplifier U2, the third capacitance C3 other ends and the first capacitance C1, third
Resistance R3 is connected, and the first capacitance C1 other ends, the 3rd resistor R3 other ends are connected with the first crystal oscillator pin P1 Plug, and the one or two
The one end pole pipe D1 is connected with the VSS pins on amplifier U2, the other end is connected with the tenth resistance R10, the tenth resistance R10 other ends
It is connected with the 16th pins of amplifier U2, electronic switch.Send instructions under host computer, generates secondary power supply and power to crystal oscillator, two level
Ranging from 1V ~ 20V of power supply also can issue enable signal, by ageing simultaneously for enabled crystal oscillator is needed according to crystal oscillator type
Crystal oscillator concussion generate frequency after, pass through match circuit, operational amplifier and electronic switch in burn-in board etc. work
Behind circuit, host computer is returned to the frequency values examined are returned, host computer calculates frequency change rate and stability etc., and then basis is set
Fixed error amount bound can accurately and effectively judge to show failure stations.
Claims (1)
1. a kind of crystal oscillator high temperature aging equipment, including the match circuit, operational amplifier, electronic switch, the host computer that are sequentially connected
And secondary power supply, crystal oscillator side is connected with secondary power supply, the other side is connected with match circuit；Crystal oscillator working power, enable signal
It is provided by secondary power supply；Match circuit includes amplifier U2, the first capacitance C1,3rd resistor R3, the 5th resistance R5, the 9th resistance
R9, thirteenth resistor R13 and the 7th capacitance C7, the 9th one end resistance R9 ground connection, the other end and fuse resistance R11 and the 4th are brilliant
Vibration tube foot P4 Plug are connected, the eleventh resistor R11 other ends and the 5th capacitance C5, the 8th resistance R8, twelfth resistor R12, the
Four resistance R4 and the 5th crystal oscillator pin P5 Plug are connected, the twelfth resistor R12 other ends and the first crystal oscillator pin P1 Plug phases
Even, the 8th resistance R8 other ends are connected with the 6th resistance R6, and the 6th resistance R6 other ends are connected with crystal oscillator working power GVCC, the
The four resistance R4 other ends are connected with second resistance R2, the 4th capacitance C4, the 7th resistance R7 and the second crystal oscillator pin P2 Plug, the
The four capacitance C4 other ends are grounded, and the 7th resistance R7 other ends are connected with third crystal oscillator pin P3 Plug, amplifier U2 output pins
OUT passes sequentially through thirteenth resistor R13, the 7th capacitance C7 is connected with frequency meter, the VCC pins on amplifier U2 and power supply VCC
Be connected, VCC pins by being grounded after the 6th capacitance C6, the tenth three-prongs of amplifier U2 and first resistor R1, the 5th resistance R5 and
Second capacitance C2 be connected, the second capacitance C2 other ends ground connection, another termination powers of first resistor R1, the 5th resistance R5 other ends with
Third capacitance C3, the 15th pins of amplifier U2 are connected, the third capacitance C3 other ends and the first capacitance C1,3rd resistor R3 phases
Even, the first capacitance C1 other ends, the 3rd resistor R3 other ends are connected with the first crystal oscillator pin P1 Plug, the first diode D1 mono-
End is connected with the VSS pins on amplifier U2, the other end is connected with the tenth resistance R10, the tenth resistance R10 other ends and amplifier
The 16th pins of U2, electronic switch are connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820238552.XU CN207866969U (en) | 2018-02-10 | 2018-02-10 | A kind of crystal oscillator high temperature aging equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820238552.XU CN207866969U (en) | 2018-02-10 | 2018-02-10 | A kind of crystal oscillator high temperature aging equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207866969U true CN207866969U (en) | 2018-09-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820238552.XU Active CN207866969U (en) | 2018-02-10 | 2018-02-10 | A kind of crystal oscillator high temperature aging equipment |
Country Status (1)
| Country | Link |
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| CN (1) | CN207866969U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110658443A (en) * | 2019-10-21 | 2020-01-07 | 浙江大学 | Aging system for radio frequency front-end device |
-
2018
- 2018-02-10 CN CN201820238552.XU patent/CN207866969U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110658443A (en) * | 2019-10-21 | 2020-01-07 | 浙江大学 | Aging system for radio frequency front-end device |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: No.3888 Yuanjiang Road, Minhang District, Shanghai 201109 Patentee after: SHANGHAI PRECISION METROLOGY AND TEST Research Institute Patentee after: Hangzhou Sanhai Electronic Technology Co.,Ltd. Address before: No.3888 Yuanjiang Road, Minhang District, Shanghai 201109 Patentee before: SHANGHAI PRECISION METROLOGY AND TEST Research Institute Patentee before: HANGZHOU SANHAI ELECTRONICS Co.,Ltd. |