WM8953ECSSLASHRV datasheet(5/100 Pages) WOLFSON

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Production Data

WM8953

PD, January 2009, Rev 4.0

PIN DESCRIPTION

PIN NO

NAME

TYPE

DESCRIPTION

MICBIAS

Analogue Output

Microphone bias

LIN1

Analogue Input

Left channel single-ended MIC input /

Left channel negative differential MIC input

LIN2

Analogue Input

Left channel line input /

Left channel positive differential MIC input

LIN3 / GPI7

Analogue Input /

Digital Input

Left channel line input /

Left channel negative differential MIC input /

Accessory or button detect input pin

LIN4

Analogue Input

Left channel line input /

Left channel positive differential MIC input /

RIN1

Analogue Input

Right channel single-ended MIC input /

Right channel negative differential MIC input

RIN2

Analogue Input

Right channel line input /

Right channel positive differential MIC input

RIN3 / GPI8

Analogue Input /

Digital Input

Right channel line input /

Right channel negative differential MIC input /

Accessory or button detect input pin

RIN4

Analogue Input

Left channel line input /

Left channel positive differential MIC input /

DCVDD

Supply

Digital core supply

DGND

Supply

Digital ground (Return path for both DCVDD and DBVDD)

DBVDD

Supply

Digital buffer (I/O) supply

AVDD

Supply

Analogue supply

A3, B1,

AGND

Supply

Analogue ground (Return path for AVDD)

MCLK

Digital Input

Master clock

BCLK

Digital Input / Output

Audio interface bit clock

ADCLRC

Digital Input / Output

Audio interface ADC left / right clock

ADCDAT

Digital Output

ADC digital audio data

MODE

Digital Input

Selects 2-wire or 3/4 -wire control

CSB / ADDR

Digital Input

3/4 -wire chip select or 2-wire address select

SCLK

Digital Input

Control interface clock input

SDIN

Digital Input / Output

Control interface data input / 2-wire acknowledge output

VMID

Analogue Output

Midrail voltage decoupling capacitor

GPIO3

Digital Input / Output

GPIO pin

GPIO4

Digital Input / Output

GPIO pin

GPIO5

Digital Input / Output

GPIO pin

A1, A4,

A5, B2,

B4, B5,

C1, C2,

C4, D1,

D2, E1,

F3, G4

DNC

Do Not Connect

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