UMTS/HSPA/LTE Module Series
Mini PCIe EVB User Guide
Mini_PCIe_EVB_User_Guide Confidential / Released 17 / 30
33pF
GND GND
Differential
layout
10pF
10pF 33pF
GND
GND
4.7uF
AGND
ESD
ESD
10pF
33pF ESD
J403
Audio Jack
2
4
5
3
1
AGND
AGND
J101
UC15 Mini PCIe-MIC_N
3
1
7
5
UC15 Mini PCIe-MIC_P
UC15 Mini PCIe-SPK_N
UC15 Mini PCIe-SPK_P
Figure 10: J403 Earphone Circuit
1
2
3
4
5
6
Figure 11: Pin Assignment of J401/J403
Table 5: Pin Assignment of J401/J403
J401/J403 Pin
Pin Name
Function
1
MIC
Microphone input
2
AGND
Dedicated GND for Audio
3
SPK_R
Right channel of stereo audio output
Quectel
Confidential