WM8740

Production Data

w

PD, Rev 4.4, April 2010

4

PIN DESCRIPTION

PIN

NAME

TYPE

DESCRIPTION

1

LRCIN

Digital input

Sample rate clock input.

2

DIN

Digital input

Audio data serial input (except in 8XMODE when it is DINL).

3

BCKIN

Digital input

Audio data bit clock input .

4

MODE8X

Digital input

Internal pull-down, active high, 8 x fs mode.

5

SCLK

Digital input

System clock input.

6

DIFFHW

Digital input

Internal pull-down, active high, differential mono mode.

7

DGND

Supply

Digital ground supply.

8

DVDD

Supply

Digital positive supply.

9

AVDDR

Supply

Analogue positive supply.

10

AGNDR

Supply

Analogue ground supply.

11

VMIDR

Analogue output

Mid rail right channel.

12

VOUTRP

Analogue output

Right channel DAC output positive.

13

VOUTRN

Analogue output

Right channel DAC output negative.

14

AGND

Supply

Analogue ground supply.

15

AVDD

Supply

Analogue positive supply.

16

VOUTLN

Analogue output

Left channel DAC output negative.

17

VOUTLP

Analogue output

Left channel DAC output positive.

18

VMIDL

Analogue output

Mid rail left channel.

19

AGNDL

Supply

Analogue ground supply.

20

AVDDL

Supply

Analogue positive supply.

21

ZERO

Digital output

Infinite zero detect – active low. Open drain type output with active pull-down.

22

RSTB

Digital input

Reset input – active low. Internal pull-up.