Cirrus Logic CS42L51 - Manual (Page 57)

DS679F1 57
CS42L51
6.8 DAC Output Control (Address 08h)
Headphone Analog Gain (HP_GAIN[2:0])
Default: 011
Function:
These bits select the gain multiplier for the headphone/line outputs. See “Line Output Voltage Characteris-
tics” on page 18 and “Headphone Output Power Characteristics” on page 19 .
DAC Single Volume Control (DAC_SNGVOL)
Default: 0
Function:
The individual channel volume levels are independently controlled by their respective Volume Control reg-
isters when this function is disabled. When enabled, the volume on all channels is determined by the AOU-
TA Volume Control register and the AOUTB Volume Control register is ignored.
PCMX Invert Signal Polarity (INV_PCMX)
Default: 0
0 - Disabled
1 - Enabled
Function:
When enabled, this bit will invert the signal polarity of the PCM x channel.
DACX Channel Mute (DACX_MUTE)
Default: 0
0 - Disabled
1 - Enabled
Function:
The output of channel x DAC will mute when enabled. The muting function is affected by the DACx Soft and
Zero Cross bits (DACx_SZC[1:0]).
7 6 5 4 3 2 1 0
HP_GAIN2 HP_GAIN1 HP_GAIN0
DAC_
SNGVOL
INV_PCMB INV_PCMA DACB_MUTE DACA_MUTE
HP_GAIN[2:0] Gain Setting
000 0.3959
001 0.4571
010 0.5111
011 0.6047
100 0.7099
101 0.8399
110 1.0000
111 1.1430