CS4362A Datasheet, PDF (39/47 Pages) Cirrus Logic – 114 dB, 192 kHz 6-channel D/A Converter

CS4362A
5.6 Volume Control (addresses 07h, 08h, 0Ah, 0Bh, 0Dh, 0Eh)
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
Note: These six registers provide individual volume and mute control for each of the six channels.
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
5.6.1 Mute (MUTE)
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 bits.
5.6.2 Volume Control (xx_VOL)
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.
Binary Code
0000000
0010100
0101000
0111100
1011010
Decimal Value
0
20
40
60
90
Volume Setting
0 dB
-20 dB
-40 dB
-60 dB
-90 dB
Table 8. Example Digital Volume Settings
DS617PP1
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