UMTS/HSPA+/LTE Standard Module Series
Mini PCIe-C EVB User Guide
Mini_PCIe-C_EVB_User_Guide 20 / 39
The figure and table below illustrate the pin assignment and pin definition of the earphone interface J401.
6
4
2
5
3
1
Figure 13: Pin Assignments of Earphone Interface J401
Table 5: Pin Definition of J401
Pin No.
Pin Name
Function
1
MIC
Microphone input
2
AGND
Dedicated GND for audio
3
SPK_R
Right channel of stereo audio output
4
SPK_L
Left channel of stereo audio output
5, 6
NC
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