WM8602

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PP Rev 1.5 May 2004

4

PIN DESCRIPTION

PIN

NAME

TYPE

DESCRIPTION

1

DVDD

Supply

Digital positive supply

2

DIN

Digital Input

L/R channel data input

3

LRCLK

Digital Input/Output

Left/right word clock

4

BCLK

Digital IO

Audio interface bit clock

5

OPDIS

Digital Input p.d.

Output disable

6

MODE

Digital Input p.d.

2/3 Wire control interface mode

7

SCLK

Digital Input

Serial interface clock

8

SDIN

Digital Input/Output

Serial interface data

9

CSB

Digital Input

Serial interface load signal

10

EAPDB

Digital Output

External output stage power down

11

OPSWP

Digital Output

PWM output positive Subwoofer channel

12

BVDD

Supply

PWM output buffer positive supply

13

AGND

Supply

Analogue negative supply

14

CLKPSU

Digital Output

Clock for external PSU

15

BGND

Supply

PWM output buffer ground supply

16

BVDD

Supply

PWM output buffer positive supply

17

OPRN

Digital Output

PWM output negative right channel

18

OPRP

Digital Output

PWM output positive right channel

19

BGND

Supply

PWM output buffer ground supply

20

OPLN

Digital Output

PWM output negative left channel

21

OPLP

Digital Output

PWM output positive left channel

22

BVDD

Supply

PWM output buffer positive supply

23

AVDD

Analogue Supply

Analogue positive supply

24

AGND

Analogue Supply

Analogue negative supply

25

XOP

Digital Output

Crystal oscillator output connection

26

XIN

Digital Input

Crystal oscillator input connection (may be left unconnected in slave

mode)

27

DGND

Supply

Digital negative supply

28

MCLK

Digital Input/Output

Master clock; 256, 384, 512 fs (fs = word clock frequency) or 27MHz

Notes: Digital input pins have Schmitt trigger input buffers. Pins marked ‘p.u.’ or ‘p.d.’ have internal pull-up or pull down.