BeStar BCM9745NC-W82PLUG - Manual (Page 4)

Cautions:
1.The soldering copper of a smaller type of less than 20W shall be applied.
2.The temperature of the working surface of the soldering copper shall be below 270 C
3.ECM shall be soldered fixed on the metal block (heat sink)which has the higher
radiation effects said heat sink shall contact with each of ECM.
4.The soldering time for each terminal shall be 1~2 seconds.
5.The pin hole after soldering shall be avoided.
6.ECM may easily destroyed by the static electricity.and the countermeasure for elimination
the static electricity (the ground or soldering copper,for worktable and for human body) shall
be executed.
7.After soldering ECM keeps 2 hours ,SPL shall be tested .
8.Environment Test Condition: temperature :20 2 C humidity max 65%
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BESTAR ELECTRONICS INDUSTRY CO.,LTD
6 5 4
www.be-star.com [email protected]
3 1
Page:3 of 5 DRG NO: BS/TEM01.074A
2
王丽娟
Drawn
06/06/06
Date
A A
Rev.
B
C
Drawn by:
Checked by:
Approved by: Note
Date:
程久生
郭 敏
王丽娟
06/06/06
BCM9745NC-W82Plug
Microphone A
B
C
- Earth
MIC.CASE
D
E
F
D
Terminal 2
E
F
ECM unit
Measurement Circuit:
BCM9745NC-W82Plug
G
H
6
PEF
RL:2.2K Ω
Terminal 1 C:1μF
G
Power Supply Vs
Output
5 4 3
H
1 2