User guide

M80 EVB User Guide
M80_EVB_UGD_V1.2 - 14 -
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 could be designed in the handset. The block diagram of
AIN1/AOUT1 and AIN2/AOUT2 is shown as below and some details are concealed. For more
information, please refer to document [3].
Battery contact pins
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