User guide

M80 EVB User Guide
M80_EVB_User_Guide_V1.2 - 15 -
Figure 8: Charging part
3.3. Audio
Five patterns of audio have been designed in M80 EVB for the customer choice. There are
AIN1/AOUT1, AIN2/AOUT2, earphone, loudspeaker and PCM interface. In this chapter, we will
introduce these audios in details.
3.3.1. Handset
AIN1/AOUT1, AIN2/AOUT2 are designed in the handset. The block diagram of AIN1/AOUT1
and AIN2/AOUT2 is shown as below and some details are concealed. If you want to get more
information, please refer to document [3].
Battery contact pins
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