CS42L51 Datasheet, PDF (58/83 Pages) Cirrus Logic – Low Power, Stereo CODEC with Headphone Amp

CS42L51
(SOFTx & ZCROSSx) from 0 to -96 dB. Levels are decoded in two’s complement, as shown in the table
above.
Note: When the ALC is enabled the Attenuator and PGA volume is automatically controlled and should
not be adjusted manually.
6.12 ADCx Mixer Volume Control:
ADCA (Address 0Eh) & ADCB (Address 0Fh)
7
6
5
4
3
2
1
0
MUTE_ADCMIXx ADCMIXx_VOL6 ADCMIXx_VOL5 ADCMIXx_VOL4 ADCMIXx_VOL3 ADCMIXx_VOL2 ADCMIXx_VOL1 ADCMIXx_VOL0
NOTE: The DATA_SEL[1:0] bits in reg09h must be set to ‘01’b to enable function control in this register.
ADCX Mixer Channel Mute (MUTE_ADCMIXX)
Default: 1
0 - Disabled
1 - Enabled
Function:
The ADC channel X input to the output mixer will mute when enabled. The muting function is affected by
the DACX Soft and Zero Cross bits (DACX_SZC[1:0]).
ADCX Mixer Volume Control (ADCMIXX_VOL[6:0])
Default = 000 0000
Binary Code
001 1000
···
000 0000
111 1111
111 1110
···
001 1001
Volume Setting
+12.0 dB
···
0 dB
-0.5 dB
-1.0 dB
···
-51.5 dB
Function:
The level of the ADCX input to the output mixer can be adjusted in 0.5 dB increments as dictated by the
DACX Soft and Zero Cross bits (DACX_SZC[1:0]) from +12 to -51.5 dB. Levels are decoded as shown in
the table above.
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DS679A2