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3. TECHNICAL BRIEF
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LGE Property
3.12.2 Microphone circuit
Figure 16 Microphone circuit
00
3
BF
02
1
10
3
R
I
N
D
C302
27pF
C303
1uF
VA300
C307
47pF
0.1uH
L302
27pF
C310
VA302
MIC300
6
5
4
3
2
1
OUT
G1
G2
G3
PWR
G4
22n
C338
22n
C339
02
1
40
3
BF
VMIC_P
VMIC_N
MAIN_MIC_P
MAIN_MIC_N
MIC