CS42L56 datasheet(82/92 Pages) CIRRUS

82 / 92 page

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.

210

AMUTE

Reserved

LINEBMUX

LINEAMUX

HPBMUX

HPAMUX

AMUTE

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.

LINExMUX

Selected Input to Line Amplifier Ch. x

DACx

PGAx - Use PGAxMUX bit (“PGA x Input Select” on page 77) to select an input channel.

HPxMUX

Selected Input to HP Amplifier Ch. x

DACx

PGAx - Use PGAxMUX bit (“PGA x Input Select” on page 77) to select an input channel.

543

HPxMUTE

HPxVOL6

HPxVOL5

HPxVOL4

HPxVOL3

HPxVOL2

HPxVOL1

HPxVOL0

HPxMUTE

HP Amp Mute

Disabled

Enabled

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