Datasheet

AD1939 Data Sheet
Rev. E | Page 26 of 32
Table 20. DAC Control 2 Register
Bit Value Function Description
0 0 Unmute Master mute
1 Mute
2:1 00 Flat De-emphasis (32 kHz/44.1 kHz/48 kHz mode only)
01 48 kHz curve
10 44.1 kHz curve
11 32 kHz curve
4:3 00 24 Word width
01 20
10 Reserved
11
16
5 0 Noninverted DAC output polarity
1 Inverted
7:6 00 Reserved
Table 21. DAC Individual Channel Mutes
Bit Value Function Description
0 0 Unmute DAC 1 left mute
1 Mute
1 0 Unmute DAC 1 right mute
1 Mute
2 0 Unmute DAC 2 left mute
1 Mute
3 0 Unmute DAC 2 right mute
1 Mute
4 0 Unmute DAC 3 left mute
1 Mute
5 0 Unmute DAC 3 right mute
1 Mute
6 0 Unmute DAC 4 left mute
1 Mute
7 0 Unmute DAC 4 right mute
1 Mute
Table 22. DAC Volume Controls
Bit Value Function Description
7:0 0 No attenuation DAC volume control
1 to 254 −3/8 dB per step
255 Full attenuation