Quectel Smart EVB G5 - Headset Interface

Smart Module Series
Smart_EVB_G5_User_Guide 44 / 66
4.7.2. Headset Interface
The following figure shows a reference circuit design for headset interface.
MIC2_P
HPH_R
HS_DET
HPH_L
HPH_REF
Module
F3
F2
F1
F4
J1202
2
6
5
3
4
1
100 pF
20K
33pF
33pF 33pF
C2
C3 C4
R4
D1 D2 D3
D4
D5
R1
R2
R3
R5
R6
0R
33 R
33 R
10 K
10 K
C1
Figure 25: Reference Design for Headset Interface
The following figure shows the pin assignment of headset interface.
12
3
4
5
6
Figure 26: Pin Assignment of Headset Interface