Receiver And Speaker Interface Design - Quectel M50 Hardware Design

M50 Hardware Design
MICxP
Module
MICxN
Figure 27: Reference design for

3.10.3. Receiver and speaker interface design

SPK1P
Module
SPK1N
M50_HD_V2.0
Differential layout
Differential layout
Figure 28: Reference design for
Close to Microphone
GND GND GND
10pF 33pF
0603
0603
10pF 33pF
0603 0603
33pF
10pF
0603
0603
GND
GND GND
AIN1&AIN2
Close to Speaker
GND
33pF
10pF
0603
0603
10pF 33pF
0603 0603
10pF 33pF
0603
0603
GND
AOUT1
ESD
Electret
Microphone
ESD
ESD
ESD
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