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M80 EVB User Guide

M80_EVB_User_Guide_V1.2 - 19 -

Figure 14: Test points of loud speaker

Table 5: Test points of loud speaker

Signal

I/O

Description

Note

LOUDSPKN

Negative loud speaker output

LOUDSPKP

Positive loud speaker output

3.3.4. PCM interface

M80 supports PCM interface. An audio codec, W681360, is used in the EVB board. The audio

codec transforms between analog signal and digital signal. For more information, please refer to

document [6].

Module

PCM

interface

Audio codec

PCM

interface

Analog

audio

RJ11

Figure 15: Block diagram of PCM

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