Cirrus Logic CS42L55 - Manual (Page 59)

DS773F1 59
CS42L55
6.23 Analog Input Advisory Volume (Address 1Eh)
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.
6.24 Digital Input Advisory Volume (Address 1Fh)
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.
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.
7 6 5 4 3 2 1 0
AINADV7 AINADV6 AINADV5 AINADV4 AINADV3 AINADV2 AINADV1 AINADV0
AINADV[7:0] Defined Input Volume
0001 1000 Reserved
··· ···
0000 0001 Reserved
0000 0000 0 dB
1111 1111 -0.5 dB
1111 1110 -1.0 dB
··· ···
0011 0100 -102 dB
··· ···
0001 1001 -102 dB
Step Size: 0.5 dB
7 6 5 4 3 2 1 0
DINADV7 DINADV6 DINADV5 DINADV4 DINADV3 DINADV2 DINADV1 DINADV0
DINADV[7:0] Defined Input Volume
0001 1000 Reserved
··· ···
0000 0001 Reserved
0000 0000 0 dB
1111 1111 -0.5 dB
1111 1110 -1.0 dB
··· ···
0011 0100 -102 dB
··· ···
0001 1001 -102 dB
Step Size: 0.5 dB