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Quectel M10

Quectel M10
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M10 Hardware Design
SPK2P
AGND
Differential layout
10pF
33pF
Close to speaker
GND
ESD
ANTI
MOUDLE
22uF
Figure 24: Speaker interface configuration of AOUT2
SPK2P
AGND
Differential layout
Amplifier
circuit
10pF
10pF
33pF
33pF
Close to speaker
GND
GND
ESD
ANTI
ESD
ANTI
MOUDLE
C2
C1
Figure 25: Speaker interface with amplifier configuration of AOUT2
Note: the value of C1 and C2 depends on the input impedance of audio amplifier.
M10_HD_V1.00 - 42 -
Quectel

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