WM8987LGECOSLASHV datasheet(4/58 Pages) WOLFSON

4 / 58 page

WM8987L

Pre-Production

PP Rev 3.0 January 2007

PIN DESCRIPTION

PIN NO

NAME

TYPE

DESCRIPTION

MCLK

Digital Input

Master Clock

DCVDD

Supply

Digital Core Supply

DBVDD

Supply

Digital Buffer (I/O) Supply

DGND

Supply

Digital Ground (return path for both DCVDD and DBVDD)

BCLK

Digital Input / Output

Audio Interface Bit Clock

DACDAT

Digital Input

DAC Digital Audio Data

DACLRC

Digital Input / Output

Audio Interface Left / Right Clock/Clock Out

ADCLRC

Digital Input / Output

Audio Interface Left / Right Clock

ADCDAT

Digital Output

ADC Digital Audio Data

OUT3

Analogue Output

Analogue Output 3 (HPL- for BTL headsets)

ROUT1

Analogue Output

Right Output 1 (HPR+ for BTL headsets)

HPGND

Supply

Supply for Analogue Output Drivers (ROUT1, L/ROUT2, OUT3)

ROUT2

Analogue Output

Right Output 2 (HPR- for BTL headsets)

LOUT2

Analogue Output

Left Output 2 (HPL+ for BTL headsets)

HPVDD

Supply

Supply for Analogue Output Drivers (ROUT1, L/ROUT2, OUT3)

AVDD

Supply

Analogue Supply

AGND

Supply

Analogue Ground (return path for AVDD)

VREF

Analogue Output

Reference Voltage Decoupling Capacitor

VMID

Analogue Output

Midrail Voltage Decoupling Capacitor

MICBIAS

Analogue Output

Microphone Bias

RINPUT2

Analogue Input

Right Channel Input 2

LINPUT2

Analogue Input

Left Channel Input 2

RINPUT1

Analogue Input

Right Channel Input 1

LINPUT1

Analogue Input

Left Channel Input 1

MODE

Digital Input

Control Interface Selection

CSB

Digital Input

Chip Select / Device Address Selection

SDIN

Digital Input/Output

Control Interface Data Input / 2-wire Acknowledge output

SCLK

Digital Input

Control Interface Clock Input

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