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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CHEC.
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DATE
DATE
DATE
Bestar Electronics
DRG NO
BS/TEM01.044A
3
2
1
3rd angle
projection
Microphone
A
BCM9750-47U
Page:2 of 2
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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