Analog Devices ADAU1961 Manual page 66

ADAU1961
R36: DAC Control 0, 16,426 (0x402A)
Bit 7 Bit 6
DACMONO[1:0]
Table 61. DAC Control 0 Register
Bits Bit Name
[7:6] DACMONO[1:0]
5 DACPOL
2 DEMPH
[1:0] DACEN[1:0]
R37: DAC Control 1, 16,427 (0x402B)
Bit 7 Bit 6
Table 62. DAC Control 1 Register
Bits Bit Name
[7:0] LDAVOL[7:0]
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Bit 5 Bit 4
DACPOL
Description
DAC mono mode. The DAC channels can be set to mono mode within the DAC and output on the left
channel, the right channel, or both channels.
Setting
00
01
10
11
Invert input polarity of the DACs.
0 = normal (default).
1 = inverted.
DAC de-emphasis filter enable. The de-emphasis filter is designed for use with a sampling rate of 44.1 kHz only.
0 = disabled (default).
1 = enabled.
DAC enable.
Setting
00
01
10
11
Bit 5 Bit 4
Description
Controls the digital volume attenuation for left channel inputs from the left DAC. Each bit corresponds to a
0.375 dB step with slewing between settings. See Table 71 for a complete list of the volume settings.
Setting
00000000
00000001
00000010
...
11111110
11111111
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Bit 3 Bit 2
DEMPH
Reserved
Mono Mode
Stereo (default)
Left channel in mono mode
Right channel in mono mode
Both channels in mono mode
DACs Enabled
Both off (default)
Left on
Right on
Both on
Bit 3 Bit 2
LDAVOL[7:0]
Volume Attenuation
0 dB (default)
−0.375 dB
−0.75 dB
...
−95.25 dB
−95.625 dB
Bit 1 Bit 0
DACEN[1:0]
Bit 1 Bit 0