CS42406 Datasheet, PDF (44/50 Pages) Cirrus Logic – 24-BIT, 192kHz 2-IN 6-OUT AUDIO CODEC

CS42406
6.4 VOLUME CONTROL (ADDRESSES 06H - 0BH)
7
xx_MUTE
0
6
xx_VOL6
0
5
xx_VOL5
0
4
xx_VOL4
0
3
xx_VOL3
0
2
xx_VOL2
0
1
xx_VOL1
0
0
xx_VOL0
0
6.4.1
MUTE (MUTE) BIT 7
Default = 0
0 - Disabled
1 - Enabled
Function:
The CS42406 DAC output converter output will mute when enabled. The quiescent voltage on the
output will be retained. The muting function is affected, similar to attenuation changes, by the Soft and
Zero Cross bits. The MUTECx pins will go active during the mute period if the Mute function is enabled
for both channels in the pair.
6.4.2 DAC VOLUME CONTROL (XX_VOL) BIT 6-0
Default = 0
Function:
The Digital Volume Control registers allow independent control of the signal levels in 1 dB increments
from 0 to -119 dB. Volume settings are decoded as shown in Table 9. The volume changes are im-
plemented as dictated by the Soft Ramp and Zero Cross bits. All volume settings less than -119 dB
are equivalent to enabling the MUTE bit.
Binary Code
0001010
0010100
0101000
0111100
1011010
Decimal Value
10
20
40
60
90
Volume Setting
-10 dB
-20 dB
-40 dB
-60 dB
-90 dB
Table 9. Example Digital Volume Settings
6.5 MODE CONTROL 2 (ADDRESS 0CH)
7
SZC1
1
6
SZC0
0
5
CPEN
0
4
PDN
1
3
POPG
1
2
FREEZE
0
1
RESERVED
0
0
SNGLVOL
0
6.5.1
SOFT RAMP AND ZERO CROSS CONTROL (SZC) BIT 7-6
Default = 10
00 - Immediate Change
01 - Zero Cross
10 - Soft Ramp
11 - Soft Ramp and Zero Cross
Function:
Immediate Change
When Immediate Change is selected all level changes will be implemented immediately in one step.
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