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Bestar, Environment test, Bestar electronics industry co.,ltd – BeStar BCM9750-47U User Manual

Page 4: Microphone

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3.Environment Test

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Bestar Electronics

DRG NO

BS/TEM01.044A

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BCM9750-47U

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3.1 High temp.life test

Temperature +70 C
Duration 200hrs

3.2 Low temp.life test

Temperature -25 C
Duration 200hrs

3.3 Temperature cycle test

Cycles 5

3.4 Humidity Test

Temperature +40 C
Relative Humidity 90~95%
Duration 200hrs
Tests above should be measured after leaving normal temperature for 2hrs.

3.5 Vibration Test

Vibration Frequency 10~55Hz
Amplitude 1.52mm/min
Direction 3(x.y&z)
Duration 2hrs each cycle(total 6 hrs)

3.6 Drop test

Height 100cm
(Dropped to concrete floor in state of packing.)
Direction 3

3.7 Soldering Heat Shock .

Temperature 260 5 C
Duration 3 1 sec

Notice:
All specifications must be satisfied in this condition.
Sensitivity :Allowable deviation within 3dB from initial sensitivity.

+70 C

-25 C

+20 C

+20 C

TianAn Industry Park 4/F,Site B ChangZhou New District

BESTAR ELECTRONICS INDUSTRY CO.,LTD

E-Mail:bestarco@ pub.cz.jsinfo.net Http:www.be-star.com

BCM9750-47U

10min

30min

10min

30min