CRD44800-ST-FB View Datasheet(PDF) - Cirrus Logic

Part Name

Description

Manufacturer

CRD44800-ST-FB

6-Channel Digital Amplifier Controller

Cirrus Logic 

CS44600

GPIO3

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

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

be individually controlled by the Host Controller.

GPIO2

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

33 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-

34 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-

35 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

49

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

ADC (CS4461).

PSR_DATAL

50

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

external PSR ADC (CS4461).

PSR_SYNC

51

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

ADC (CS4461).

PSR_RESET

52

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

Rejection circuitry.

PSR_EN

2

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

Rejection circuitry.

PWMOUTA1+ 64

PWMOUTA1- 63

PWMOUTB1+ 61

PWMOUTB1- 60

PWMOUTA2+ 58

PWMOUTA2-

PWMOUTB2+

57

55

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

PWMOUTB2- 54

PWMOUTA3+ 47

PWMOUTA3- 46

PWMOUTB3+ 44

PWMOUTB3- 43

VDX

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

VD

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

VLC

17

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

input/output signals for the host interface.

VLS

16

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

input signals for the digital audio interface.

VDP

39, 45, PWM Interface Power (Input) - Determines the required signal level for the digital

56, 62 input/output signals for the PWM and GPIO interface.

GND

1, 4,

18, 28,

36, 42, Digital Ground (Input) - Ground reference for digital circuits.

48, 53,

59

18

DS633F1

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