Protocol Frame Description

5.5Custom Command

AUDIO_SET_GAIN Set Audio Gain:

„Line out (default value: 02h, -3 dB).

„Power Amplifier (default value: 07h, +2 dB).

„Line in (default value: 08h, -9 dB).

„Auxiliary in (default value: 07h, -6 dB).

„Dac Master Gain (default value: 0Ch, -6 dB).

Refer to AT83SND2CMP3 datasheet (chapter DAC and PA Interface) for audio gain description and register value.

Table 5-52 .AUDIO_SET_GAIN command

 

 

Protocol

 

 

 

Frame Start

Channel

Command

Data Length

Data

CheckSum

 

 

 

 

 

 

7Eh

If not used,

91h

02h

Byte 0: Gain Selector

Yes

FFh

Byte 1: Gain Value

 

 

 

 

 

 

 

 

 

 

AT83SND2CMP3 User Guide

5-45

7525A–MP3–07/05