GSM/GPRS Modules
GSM Module Audio Design Guide
GSM Module Audo Design Guide Confidential/Release 18 / 35
2.1.4.3. Headset Reference Circuit
1
2
4
3
Amphenol
9001-8905-050
SPK2P
MIC2N
MIC2P
22uF
68R
33pF
GND
AGND
Close to Socket
Differential
layout
33pF
AGND
33pF 10pF
GND
Module
4.7uF
ESD
ESD
Figure 15：Headset Reference Circuit
2.1.4.4. SPK Reference Circuit
LOUDSPKP
LOUDSPKN
Differential layout
10pF
10pF
33pF
33pF
Close to speaker
GND
100pF
ESD
Module
0R
0R
ESD
GND
Figure 16：SPK Reference Circuit
To Next Page
Loading...
Need help?
General
