Reference Design For Microphone Interfaces - Quectel SC606T Series Hardware Design

3.20.1. Reference Design for Microphone Interfaces

MIC1_P
MIC1_N
Module
Figure 24: Reference Design for Analog ECM-type Microphone
MIC_ BIAS
MIC_ GND
MIC3_P
Module
Figure 25: Reference Design for MEMS-type Microphone
SC606T_Series_Hardware_Design
R1
0R
R2
0R
R1
0R
C1
33 pF R2
0R
C2
33 pF
Smart Module Series
SC606T Series Hardware Design
D1
R3
C1
33 pF
0R
C4
F1
100 pF
D1
ECM-MIC
1
2
VDD
GND
3
GND
OUT
4
MEMS-MIC
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