1. The specification
Test conditions :VS = 2.0V RL = 2.2K; BW = 100 Hz ~ 20 KHZ; Ta = +20±2℃, room temperature = 60±5%
2. Measuring circuit
Test conditions Vs=2.0V RL=2.2K Ta=20±2℃ R H =60±5%
3. Dimension drawing unit :mm
4. Frequency Response Curve
5. Environment
Working condition Storage Range
Ambient temperature :-25℃~+70℃ Relative humidity :≤85%
6. Reliability test
Note: The sensitivity of the microphone should not change more than ±3dB from the initial value after performing any of the following tests. The microphone should be operated and displayed as before the test. Non-ambient temperature required tests or post-test measurements shall be performed at room temperature for 2 hours (approx. 2 hours). 20 ° C).
Vibration test: After 2 hours of vibration on each of the three axes (X, Y, z), the microphone will operate within the published specification with vibration frequency of 10Hz to 55Hz, 1 minute and full amplitude of 1.52mm.
Fall test: Tests carried out in the transport box: the microphone will operate within the published specifications from a height of 1 m to 12 concrete surfaces (2 times per surface).
High temperature test: The microphone will operate within the published specification after 96 hours of operation at +70±3°C.
Isothermal and isothermal tests: After 96 hours of storage at 60±3°C and 95±3% relative humidity, the microphone will operate within the published specification
Low temperature test: The microphone will operate within the published specifications after 96 hours of operation at -25±3°C.
Temperature cycle test: The microphone will run five cycles within the published specifications :-25±3℃ for 30 minutes, 20±3℃ for 10 minutes, 70±3℃ for 30 minutes, and 20±3℃ for 10 minutes
Temperature shock test: The microphone will run 32 cycles within the published specification, at 70±3 ° C for 30 minutes, then at -25±3 ° C for 30 minutes (change time 20 seconds)
7. Reflux profiles (to ensure maximum reflux conditions)
8. Packing details
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