Reference Circuit Design For Microphone Interfaces - Quectel SC600Y-EM Series Hardware Design

3.23.1. Reference Circuit Design for Microphone Interfaces

MIC1_P
MIC1_N
Module
Figure 27: Reference Circuit Design for Analog ECM-type Microphone
MIC_ BIAS
MIC_ GND
MIC3_P
Module
Figure 28: Reference Circuit Design for MEMS-type Microphone
SC600Y&SC600T_Hardware_Design
R1
0R
R2
0R
R1
0R
C1
33pF R2
0R
C2
33pF
Smart LTE Module Series
SC600Y&SC600T Hardware Design
D1
R3
C1
33pF
0R
C4
F1
100nF
D1
ECM-MIC
1
2
VDD
GND
3
GND
OUT
4
MEMS-MIC
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