Environment test, Microphone – BeStar BCM9745P-44 User Manual
Page 4

3.1 High temp.life test
Temperature +70 ℃
Duration 200hrs
3.2 Low temp.life test
Temperature -25 ℃
Duration 200hrs
3.3 Temperature cycle test
Cycles 5
3.4 Humidity Test
Temperature +40 ℃
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
Duration 3
±1 sec
3.8 Terminal Mechanical Strength
Strength 1kg
Duration 1 min
Notice:
All specifications must be satisfied in this condition.
Sensitivity :Allowable deviation within
±3dB from initial sensitivity.
3.Environment Test
徐金国
08/05/17
A
H
G
F
E
D
2
H
BCM9745P-44
G
F
E
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C
B
A
C
B
BCM9745P-44
徐金国
08/05/17
Microphone
DRG NO: BS/TEM01.061A
李毕佳
张秀琴
Date:
Note
A
Rev.
Date
Drawn
Drawn by:
Checked by:
Approved by:
2
1
Page:3 of 4
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