Analog Devices ADAU1961 Manual page 64

ADAU1961
R31: Playback Line Output Left Volume Control, 16,421 (0x4025)
Bit 7 Bit 6
Table 56. Playback Line Output Left Volume Control Register
Bits Bit Name
[7:2] LOUTVOL[5:0]
1 LOUTM
0 LOMODE
R32: Playback Line Output Right Volume Control, 16,422 (0x4026)
Bit 7 Bit 6
Table 57. Playback Line Output Right Volume Control Register
Bits Bit Name
[7:2] ROUTVOL[5:0]
1 ROUTM
0 ROMODE
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Bit 5 Bit 4
LOUTVOL[5:0]
Description
Line output volume control for left channel, LOUTN and LOUTP outputs. Each 1-bit step corresponds to a 1 dB
increase in volume. See Table 72 for a complete list of the volume settings.
Setting
000000
...
111001
...
111111
Line output mute for left channel, LOUTN and LOUTP outputs (active low).
0 = mute.
1 = unmute (default).
Line output mode for left channel, LOUTN and LOUTP outputs. These pins can be configured for either line
outputs or headphone outputs. To drive earpiece speakers, set this bit to 1 (headphone output).
0 = line output (default).
1 = headphone output.
Bit 5 Bit 4
ROUTVOL[5:0]
Description
Line output volume control for right channel, ROUTN and ROUTP outputs. Each 1-bit step corresponds to a 1 dB
increase in volume. See Table 72 for a complete list of the volume settings.
Setting
000000
...
111001
...
111111
Line output mute for right channel, ROUTN and ROUTP outputs (active low).
0 = mute.
1 = unmute (default).
Line output mode for right channel, ROUTN and ROUTP outputs. These pins can be configured for either line
outputs or headphone outputs. To drive earpiece speakers, set this bit to 1 (headphone output).
0 = line output (default).
1 = headphone output.
Bit 3 Bit 2
Volume
−57 dB (default)
...
0 dB
...
6 dB
Bit 3 Bit 2
Volume
−57 dB (default)
...
0 dB
...
6 dB
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Bit 1 Bit 0
LOUTM LOMODE
Bit 1 Bit 0
ROUTM ROMODE