Quectel SC200R Series

Smart Module Series
SC200R&SC262R_Series_Hardware_Design 72 / 124
MIC3_P
33 pF
MEMS MIC
R2
R1
C2
Module
MIC_GND
0R
C1
MIC_BIAS1
1
2
3
4
F1
D1
OUT
GND
GND
VDD
100nF
C4
0R
33pF
Figure 24: Reference Circuit Design for MEMS Microphone Interface
3.22.2. Reference Circuit Design for Earpiece Interface
EAR_P
EAR_N
R2
33 pF
33 pF
33 pF
C2
C3
C1
R1
Module
D1
D2
0R
0R
Figure 25: Reference Circuit Design for Earpiece Interface