User's Manual

盟訊實業股份有限公司
Unication CO., LTD.
機密等級：□極機密 ■機密 □普通
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Figure 6 – UART2 typical application circuit 1
3.6 Analogy Audio
GM601 provide 4 audio channels: one for handset microphone, one for handset receiver, one for headset
earphone, one for headset microphone.
3.6.1 Interface define
Figure7 – Analogy audio interface
Audio pin define as follow (not include GND):
BGA BALL Name I/O Function Pull up/down Type
H9 EAR_MT- O Headset single end right channel audio
G10 EAR_MT+ O Headset single end left channel audio
H10 EAR_HF+ O Handset ear output, phase+ audio
J10 EAR_HF- O Handset ear output, phase- audio