Cirrus Logic CS4382A - Manual (Page 41)

DS618F2 41
CS4382A
6.7.2 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 imple-
mented as dictated by the Soft and Zero Cross bits. All volume settings less than -127 dB are equivalent
to enabling the MUTE bit.
6.8 Chip Revision (Address 12h)
6.8.1 Part Number ID (PART) [Read Only]
01110 - CS4382A
6.8.2 Revision ID (REV) [Read Only]
000 - Revision A
001 - Revision B
Function:
This read-only register can be used to identify the model and revision number of the device.
Binary Code Decimal Value Volume Setting
0 0 0 0 0 0 0 0 0 dB
0 0 1 0 1 0 0 20 -20 dB
0 1 0 1 0 0 0 40 -40 dB
0 1 1 1 1 0 0 60 -60 dB
1 0 1 1 0 1 0 90 -90 dB
Table 8. Example Digital Volume Settings
7 6 5 4 3 2 1 0
PART4 PART3 PART2 PART1 PART0 REV2 REV1 REV0
0 1 1 1 0 - - -