CS4382A Cirrus Logic, CS4382A Datasheet - Page 39

• Manufacturer Part Number: CS4382A
• Description: 192 kHz 8-Channel D/A Converter
• Manufacturer: Cirrus Logic

DS618PP1
5.7
Note: These eight registers provide individual volume and mute control for each of the eight channels.
5.7.1 Mute (MUTE)
5.7.2 Volume Control (xx_VOL)
xx_MUTE
0
7
Default = 0
0 - Disabled
1 - Enabled
Function:
The Digital-to-Analog converter output will mute when enabled. The quiescent voltage on the output will be
retained. The muting function is affected, similarly to attenuation changes, by the Soft and Zero Cross bits.
The MUTE pins will go active during the mute period according to the MUTEC bit.
Default = 0 (No attenuation)
Function:
The Digital Volume Control registers allow independent control of the signal levels in 1 dB increments from
0 to -127 dB. Volume settings are decoded as shown in Table 8. The volume changes are implemented
as dictated by the Soft and Zero Cross bits. All volume settings less than -127 dB are equivalent to enabling
the MUTE bit.
Volume Control (addresses 07h, 08h, 0Ah, 0Bh, 0Dh, 0Eh)
The values for “xx” in the bit fields above are as follows:
Register address 07h - xx = A1
Register address 08h - xx = B1
Register address 0Ah - xx = A2
Register address 0Bh - xx = B2
Register address 0Dh - xx = A3
Register address 0Eh - xx = B3
Register address 10h - xx = A4
Register address 11h - xx = B4
xx_VOL6
6
0
Binary Code
0 0 0 0 0 0 0
0 0 1 0 1 0 0
0 1 0 1 0 0 0
0 1 1 1 1 0 0
1 0 1 1 0 1 0
xx_VOL5
5
0
Table 8. Example Digital Volume Settings
xx_VOL4
0
4
Decimal Value
20
40
60
90
0
xx_VOL3
3
0
Volume Setting
xx_VOL2
-20 dB
-40 dB
-60 dB
-90 dB
2
0
0 dB
xx_VOL1
0
1
CS4382A
xx_VOL0
0
0
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