User Manual

82 DS851F2
CS42L56
6.34 Automute, Line & HP MUX (Address 27h)
6.34.1 Auto Mute
Configures the state of the auto mute feature. When enabled, the analog outputs will mute after 4096 con-
secutive zeros or ones from SDIN.
6.34.2 Line Input Select
Selects the specified analog input signal into line amplifier x.
Note: The PGA path must not be selected while the Line Amplifier is powered down.
6.34.3 Headphone Input Select
Selects the specified analog input signal into headphone amplifier x.
Note: The PGA path must not be selected while the Headphone Amplifier is powered down.
6.35 Headphone Volume Control: HPA (Address 28h) & HPB (Address 29h)
6.35.1 Headphone Channel x Mute
Configures an analog mute on the headphone amplifier.
7 6 5 4 3210
AMUTE Reserved Reserved Reserved LINEBMUX LINEAMUX HPBMUX HPAMUX
AMUTE Auto Mute Configuration
0 Auto Mute Disabled
1
Auto Mute Enabled. The analog outputs will mute after 4096 consecutive words of all zeros or ones from
SDIN.
LINExMUX Selected Input to Line Amplifier Ch. x
0 DACx
1 PGAx - Use PGAxMUX bit (“PGA x Input Select” on page 77) to select an input channel.
HPxMUX Selected Input to HP Amplifier Ch. x
0 DACx
1 PGAx - Use PGAxMUX bit (“PGA x Input Select” on page 77) to select an input channel.
76543210
HPxMUTE HPxVOL6 HPxVOL5 HPxVOL4 HPxVOL3 HPxVOL2 HPxVOL1 HPxVOL0
HPxMUTE HP Amp Mute
0 Disabled
1 Enabled