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CN2
1
2
3
4
5
AUDIOJACK
AUDGND
P5VSW
13
23
DOA_MICMUT
1
U17F
74HCT04SS
R96
100k
2
ADVDD
ADVDD
26
P5VSW
26
P5VSW
ADVDD
1
R79
7.5K
2
1
R78
7.5K
2
FB12
ADA_MICINV
22
FB
*
C55
100pF
* : DO NOT POPULATE.
FB10
FB
C4
100pF
FB9
FB
C3
100pF
ADVDD
1
R6
20K
1
4
2
R99
2
12
1
2
1
Q1
S2N3906
20K
3
3
Q6
1
RN1424
2
AUDGND
C76
10uF_16V
AUDGND
C85
ADA_RIN
1uF_16V
C84
ADA_LIN
1uF_16V
ADA_MIC
31
31
31
CONFIDENTIAL
ACER ADVANCED LABS
Title
PROJECT MARS
Size
Document Number
A3
MIC INPUT CIRCUIT
Date:
June 11, 1996
Sheet
30
of
33
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