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M9767

1.ScopeThespecificationsshouldbeappliedtoelectretcondensermicrophoneofKCD-AH9767L-422G 2.StorageAndJudgementConditions TemperatureRange(°C)Rel.Humidity(%)StaticPressure(kPa)Judgement19~2145~6586~106St
Product Detail

1. Scope

The specifications should be applied to electret condenser microphone of KCD-AH9767L-422G

 

2.Storage And Judgement Conditions

  Temperature Range(°C) Rel. Humidity(%) Static Pressure(kPa)
Judgement 19~21 45~65 86~106
Storage -40~85 <60  
Operating -40~70    

 

3. Specifications

Test conditions(VS=3.0V  RL=2.2kΩ Temp=20±2℃  R.H=60±5%)

Item Symbol Test Conditions Min Standard Max Unit
Sensitivity S f=1kHz,Pin=1ubar -44 -42 -40 dB
(0dB=1V/ubar)
Impedance Z f=1kHz,Pin=1ubar     2.2
Directivity Omni-directional
Current Consumption I VS=3.0V  RL=2.2kΩ     500 μA
Operation Voltage Range U D.C 1.0 3.0 10 V
S/N Ratio S/N(A) f=1kHz,Pin=1ubar
A Curve
58     dB
Decreasing Voltage Characteristic ΔS f=1kHz,Pin=1ubar
VS=2.0-1.5V
    -3 dB
Max.Input Sound Level MISPL f=1kHz
Distortion<1%
    120 dB

 

4. Test Circuit

 

5. Test Setup Drawing

 

6. Frequency & Microphone Response Tolerance

 

7.Bill of Material

7.1Appearance Drawing

 

7.2 材料清单

Item Material name material Specification/model Qty Remark
1 P.C.B FR4 JST-XL-AM9767-02 1  
2 Recessed POM Plastic JST-BJ9767-01 1  
3 FET N-Channel Junction CSK596 1  
4 Metalization defines Brass、 JST-JB9767-07 1 本色
5 gaskets Polyester Film JST-DP9767-01 1  
6 Diaphragm FEP Plated Nickel JST-MP9767-01 1  
7 shell Aluminum alloy KCD-WK9767-01 1  
8 Dustproof nets non-woven JST-FC9767-01 1  

 

8.Soldering Condition.

8.1DianLaoTie actual temperature setting in 320 + 10 ℃

 

8.2The microphone when soldering good cooling measures

Brass cooling equipment (photo) (thermal conductive good metal tooling).  

 

8.3 time for each terminal shall be 1-~2 sec.

 

8.4After welding can't appear stomatal or a virtual welding

 

8.5Electrostatic easy to destroy the microphone measures must be taken to avoid

 

9. Reliability Test

All tests should be done after 2 hours of conditioning at 20℃, R.H65%, while the sensitivity is to be within ±3dB from the initial sensitivity after the following experiments.

 

9.1 HIGH TEMPERATURE TEST

High temperature: +70℃

Duration: 200 hours

 

9.2 LOW TEMPERATURE TEST

Low temperature: -25℃
Duration: 200 hours 

 

9.3TEMPERATURE CYCLE TEST (See in Fig.1)

Low temperature: -25℃
High temperature: +70℃
Changeover time: 10min
Duration: 30min
Cycle: 5

                   Fig.1  TEMPERATURE CYCLE TEST

 

9.4 STATICAL HUMIDITY TEST

Temperature: +60℃
Relative humidity: 90~95%
Duration: 200 hours 


9.5 VIBRATION TEST

Amplitude: 1.52mm
Duration: 1 minutes/plane
Freq.range: 10~55Hz
Total time: 2 hour


9.6 DROP TEST

Drop a unit unpacked onto a board of 20mm thick
Height: 1 m
Cycle: 6 (1 each plane)


9.7 ESD Test

The microphone under test must be discharged between each ESD exposure without ground.
(contact:±8Kv, air:±15Kv)There is no interference in operation after 10 times exposure.

 

10:packing:  100PCS   1000PCS   10000PCS

Corresponding parameter set not found, please add it in property template of background
暂未实现,敬请期待
暂未实现,敬请期待
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