CS42L55 Datasheet, PDF (59/73 Pages) Cirrus Logic – Ultra Low Power, Stereo CODEC w/Class H Headphone Amp

6.23 Analog Input Advisory Volume (Address 1Eh)
7
AINADV7
6
AINADV6
5
AINADV5
4
AINADV4
3
AINADV3
2
AINADV2
CS42L55
1
AINADV1
0
AINADV0
6.23.1 Analog Input Advisory Volume
Defines the maximum analog input volume level used by the class H controller to determine the appropri-
ate supply for the HP and Line amplifiers.
AINADV[7:0]
0001 1000
···
0000 0001
0000 0000
1111 1111
1111 1110
···
0011 0100
···
0001 1001
Step Size:
Defined Input Volume
Reserved
···
Reserved
0 dB
-0.5 dB
-1.0 dB
···
-102 dB
···
-102 dB
0.5 dB
6.24 Digital Input Advisory Volume (Address 1Fh)
7
DINADV7
6
DINADV6
5
DINADV5
4
DINADV4
3
DINADV3
2
DINADV2
1
DINADV1
0
DINADV0
6.24.1 Digital Input Advisory Volume
Defines the maximum digital input volume level used by the class H controller to determine the appropri-
ate supply for the HP and Line amplifiers.
DINADV[7:0]
0001 1000
···
0000 0001
0000 0000
1111 1111
1111 1110
···
0011 0100
···
0001 1001
Step Size:
Defined Input Volume
Reserved
···
Reserved
0 dB
-0.5 dB
-1.0 dB
···
-102 dB
···
-102 dB
0.5 dB
Note: Between the headphone and line, the final output voltage from the charge pump is dictated by
the highest required advisory volume. When any respective amplifier is powered down, the charge pump’s
voltage automatically adjusts to the appropriate level.
DS773F1
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