WM8738

Production Data

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PD Rev 4.4 August 2006

4

PIN DESCRIPTION

PIN

NAME

TYPE

DESCRIPTION

1

DVDD

Supply

Digital positive supply

2

SDATO

Digital Output

ADC digital data output

3

BCLK

Digital Input

ADC audio interface data clock (5V tolerant)

4

FMT

Digital input (with pull down)

Audio interface format selection (5V tolerant)

‘0’ = I

‘1’ = Left Justified

5

CAP

Analog

Reference de-coupling pin

6

VREF

Analogue output

Buffered reference decoupling pin

7

RIN

Analogue Input

Right channel ADC input

8

LIN

Analogue Input

Left channel ADC input

9

AVDD

Supply

Analogue positive supply

10

AGND

Supply

Analogue ground supply and chip substrate

11

NOHP

Digital input (with pull down)

Digital highpass filter bypass; (5V tolerant)

‘0’ = Enabled

‘1’ = Bypassed

12

LRCLK

Digital Input

Data left/right word clock (5V tolerant)

13

MCLK

Digital Input

Master clock input (5V tolerant)

14

DGND

Supply

Digital supply ground

Notes

1. Digital input pins have Schmitt trigger input buffers and are 5V tolerant.