Cirrus Logic CS42L73 - Manual (Page 103)

DS882F1 103
CS42L73
6.25 Headphone Analog Volume Control: Channel A (Address 1Eh) and B (Address 1Fh)
6.25.1 Headphone x Analog Mute
Configures an analog mute on the channel x Headphone (HP) amplifier.
6.25.2 Headphone x Analog Volume Control
Sets the volume of the signal out of the channel x Headphone (HP) amplifier.
Note: The step size may deviate slightly from 1.0 dB (-50 dB to +12 dB) or 2 dB (-76 dB to -50 dB). Refer
to Figures 60 through 63 on page 132 .
7 6 5 4 3 2 1 0
HPxAMUTE HPxAVOL6 HPxAVOL5 HPxAVOL4 HPxAVOL3 HPxAVOL2 HPxAVOL1 HPxAVOL0
HPxAMUTE Headphone Amp Mute
0 Not muted
1 Muted
HPxAVOL[6:0] Headphone Volume
0111111 +12 dB
... ...
0001100 +12 dB
... ...
0000001 +1.0 dB
0000000 0 dB
1111111 -1.0 dB
... ...
1001111 -49.0 dB
1001110 -50.0 dB
1001101 -52.0 dB
1001100 -54.0 dB
... ...
1000010 -74.0 dB
1000001 -76.0 dB
1000000 Reserved
Step Size: 1.0 dB (-50 dB to +12 dB) or 2 dB (-76 dB to -50 dB)