Quectel SC206E Series User Manual

Smart Module Series
SC206E_Series_Hardware_Design 64 / 115
⚫ The lineout interface uses differential output, lineout is used as audio PA input.
⚫ The headphone interface features stereo left and right channel output, and supports headphone
insertion detection.
3.22.1. Reference Circuit Design for Microphone Interfaces
MIC1_P
ECM MIC
Module
MIC1_M
C2 C3
MIC_BIAS1
R3
R1
C1
R4
2.2K
0R
0R
MIC1_P
ECM MIC
Module
MIC1_M
C2 C3
MIC_BIAS1
R3
R1
R2
C1
R4
2.2K
0R
0R
0R
100 nF
33 pF 33 pF
D1
Figure 23: Reference Circuit Design for ECM Microphone Interface
MIC3_P
MEMS MIC
R2
R1
C2
Module
C1
MIC_BIAS3
1
2
3
4
F1
OUT
GND
GND
VDD
MIC3_M
D1
C3
D2
33 pF
100 nF
0R
0R
33 pF
Figure 24: Reference Circuit Design for MEMS Microphone Interface

Quectel SC206E Series Specifications

General

Brand	Quectel
Model	SC206E Series
Category	Control Unit
Language	English