CS42L52 datasheet(52/82 Pages) CIRRUS

52 / 82 page

DS680A1

CS42L52

6.13 Miscellaneous Controls (Address 0Eh)

6.13.1 Passthru Analog

Configures an analog passthru from the PGA inputs to the headphone/line outputs.

Notes:

1. The Passthru volume control is realized using a combination of the PGA volume control settings

(“PGAx Volume” on page 56) and the headphone amplifier volume control settings (hidden). When

passthru is enabled and the PGA to ADC path is selected, the signal seen by the ADC will change

depending on the passthru volume setting.

6.13.2 Passthru Mute

Configures an analog mute on the channel x analog in to analog out passthru.

6.13.3 Freeze Registers

Configures a hold on all register settings.

6.13.4 HP/Speaker De-Emphasis

Configures a 15

μs/50μs digital de-emphasis filter response on the headphone/line and speaker outputs.

543

PASSTHRUB PASSTHRUA PASSBMUTE PASSAMUTE

FREEZE

DEEMPH

DIGSFT

DIGZC

PASSTHRUx

Analog In Routed to HP/Line Output

Disabled

Enabled

PASSxMUTE

Passthru Mute

Disabled

Enabled

FREEZE

Control Port Status

Modifications may be made to all control port registers without the changes taking effect until after the

FREEZE is disabled.

DEEMPHASIS

Control Port Status

Disabled

Enabled

CS42L52 Datasheet(PDF) 52 Page - Cirrus Logic