Cirrus Logic CS42526 - Manual (Page 58)

58 DS585F2
CS42526
6.12 Channel Mute (address 0Eh)
6.12.1 INDEPENDENT CHANNEL MUTE (XX_MUTE)
Default = 0
0 - Disabled
1 - Enabled
Function:
The digital-to-analog converter outputs of the CS42526 will mute when enabled. The quiescent volt-
age on the outputs will be retained. The muting function is affected, similar to attenuation changes,
by the Soft and Zero Cross bits (SZC[1:0]).
6.13 Volume Control (addresses 0Fh, 10h, 11h, 12h, 13h, 14h)
6.13.1 VOLUME CONTROL (XX_VOL)
Default = 0
Function:
The Digital Volume Control registers allow independent control of the signal levels in 0.5 dB incre-
ments from 0 to -127 dB. Volume settings are decoded as shown in
Table 15 . The volume changes
are implemented as dictated by the Soft and Zero Cross bits (SZC[1:0]). All volume settings less than
-127 dB are equivalent to enabling the MUTE bit for the given channel.
6.14 Channel Invert (address 17h)
6.14.1 INVERT SIGNAL POLARITY (INV_XX)
Default = 0
0 - Disabled
1 - Enabled
Function:
When enabled, these bits will invert the signal polarity of their respective channels.
6.15 Mixing Control Pair 1 (Channels A1 & B1) (address 18h)
7 6 5 4 3 2 1 0
Reserved Reserved B3_MUTE A3_MUTE B2_MUTE A2_MUTE B1_MUTE A1_MUTE
7 6 5 4 3 2 1 0
xx_VOL7 xx_VOL6 xx_VOL5 xx_VOL4 xx_VOL3 xx_VOL2 xx_VOL1 xx_VOL0
Binary Code Decimal Value Volume Setting
00000000 0 0 dB
00101000 40 -20 dB
01010000 80 -40 dB
01111000 120 -60 dB
10110100 180 -90 dB
Table 15. Example Digital Volume Settings
7 6 5 4 3 2 1 0
Reserved Reserved INV_B3 INV_A3 INV_B2 INV_A2 INV_B1 INV_A1