CS42L56 View Datasheet(PDF) - Cirrus Logic
Part Name
Description
MFG CO.
CS42L56 Datasheet PDF : 92 Pages
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6.34 Automute, Line & HP MUX (Address 27h)
7
AMUTE
6
Reserved
5
Reserved
4
Reserved
3
LINEBMUX
2
LINEAMUX
CS42L56
1
HPBMUX
0
HPAMUX
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.
AMUTE
0
1
Auto Mute Configuration
Auto Mute Disabled
Auto Mute Enabled. The analog outputs will mute after 4096 consecutive words of all zeros or ones from
SDIN.
6.34.2 Line Input Select
Selects the specified analog input signal into line amplifier x.
LINExMUX
0
1
Selected Input to Line Amplifier Ch. x
DACx
PGAx - Use PGAxMUX bit (“PGA x Input Select” on page 77) to select an input channel.
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.
HPxMUX
0
1
Selected Input to HP Amplifier Ch. x
DACx
PGAx - Use PGAxMUX bit (“PGA x Input Select” on page 77) to select an input channel.
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)
7
HPxMUTE
6
HPxVOL6
5
HPxVOL5
4
HPxVOL4
3
HPxVOL3
2
HPxVOL2
1
HPxVOL1
0
HPxVOL0
6.35.1 Headphone Channel x Mute
Configures an analog mute on the headphone amplifier.
HPxMUTE
0
1
HP Amp Mute
Disabled
Enabled
82
DS851F2
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