CS44800 datasheet(18/80 Pages) CIRRUS

18 / 80 page

DS632F1

CS44800

GPIO2

General Purpose Input, Output (Input/Output) - This pin is configured as an input follow-

ing a RST condition. It can be configured as a general purpose input or output which can

be individually controlled by the Host Controller.

GPIO1

General Purpose Input, Output (Input/Output) - This pin is configured as an input follow-

ing a RST condition. It can be configured as a general purpose input or output which can

be individually controlled by the Host Controller.

GPIO0

General Purpose Input, Output (Input/Output) - This pin is configured as an input follow-

ing a RST condition. It can be configured as a general purpose input or output which can

be individually controlled by the Host Controller.

PSR_MCLK

Power Supply Rejection Master Clock (Output) - Master audio clock for external PSR

ADC (CS4461).

PSR_DATAL

Power Supply Rejection Input Serial Data (Input) - Input for serial audio data from

external PSR ADC (CS4461).

PSR_SYNC

Power Supply Rejection Sync Clock (Input) - Synchronization signal for external PSR

ADC (CS4461).

PSR_RESET

Power Supply Rejection Reset (Output) - The reset pin for the external Power Supply

Rejection circuitry.

PSR_EN

Power Supply Rejection Enable (Output) - The enable pin for the external Power Supply

Rejection circuitry.

PWMOUTA1+

PWMOUTA1-

PWMOUTB1+

PWMOUTB1-

PWMOUTA2+

PWMOUTA2-

PWMOUTB2+

PWMOUTB2-

PWMOUTA3+

PWMOUTA3-

PWMOUTB3+

PWMOUTB3-

PWMOUTA4+

PWMOUTA4-

PWMOUTB4+

PWMOUTB4-

PWM Output (Output) - PWM control signals for the Class D amplifier backend.

VDX

Crystal Power (Input) - Positive power supply for the Crystal section.

19, 27 Digital Power (Input) - Positive power supply for the digital section.

VLC

Host Interface Power (Input) - Determines the required signal level for the digital

input/output signals for the host interface.

VLS

Digital Audio Interface Power (Input) - Determines the required signal level for the digital

input signals for the digital audio interface.

VDP

39, 45,

56, 62

PWM Interface Power (Input) - Determines the required signal level for the digital

input/output signals for the PWM and GPIO interface.

CS44800 Datasheet(PDF) 18 Page - Cirrus Logic

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