WM8782 datasheet(4/19 Pages) WOLFSON

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WM8782

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PP, May 2004, Rev 1.0

PIN DESCRIPTION

PIN NO.

NAME

TYPE

DESCRIPTION

MCLK

Digital Input

Master Clock

DOUT

Digital Output

ADC Digital Audio Data

LRCLK

Digital Input / Output

Audio Interface Left / Right Clock

DGND

Supply

Digital Negative Supply

DVDD

Supply

Digital Positive Supply

BCLK

Digital Input / Output

Audio Interface Bit Clock

IWL

Digital Tristate Input

Word Length

0 = 16 bit

1 = 20 bit

Z = 24 bit

FSAMPEN

Digital Tristate Input

Fast Sampling Rate Enable

0 = 48ken

1= 96ken

Z= 192ken

FORMAT

Digital Tristate Input

Audio Mode Select

0 = RJ

1 = LJ

Z = I2S

VMID

Analogue Output

Midrail Voltage Decoupling Capacitor

VREFGND

Supply

Negative Supply and Substrate Connection

VREFP

Analogue Output

Positive Reference Voltage Decoupling Pin; 10uF external decoupling

AVDD

Supply

Analogue Positive Supply

AGND

Supply

Analogue Negative Supply and Substrate Connection

AINOPR

Analogue Output

Right Channel Internal Op-Amp Output

AINR

Analogue Input

Right Channel Input

COM

Analogue Input

Common mode high impedance input should be set to midrail.

AINOPL

Analogue Output

Left Channel Internal Op-Amp Output

AINL

Analogue Input

Left Channel Input

M/S

Digital Input

Interface Mode Select

0 = Slave mode (128fs, 192fs, 256fs, 384fs, 512fs, 768fs)

1 = Master mode (256fs, 128fs)

(fs=word clock frequency)

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