WM8716

Production Data

w

PD, Rev 4.2,August 2008

8

PIN DESCRIPTION

PIN

NAME

TYPE

DESCRIPTION

Hardware Mode

Normal Mode

Differential Mode

8X Mode

Software

Mode

1

LRCIN

Digital input

Sample rate clock input.

2

DIN

Digital input

Audio data serial input

DINL

Audio data

serial input

3

BCKIN

Digital input

Audio data bit clock input.

4

CLKO

Digital output

Oscillator buffered output (system clock).

5

XTI

Analogue input

Oscillator input.

6

XTO

Analogue output

Oscillator output.

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

MODE8X

Digital input

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

13

VOUTR

Analogue output

Right channel DAC output.

14

AGND

Supply

Analogue ground supply.

15

AVDD

Supply

Analogue positive supply.

16

VOUTL

Analogue output

Left channel DAC output.

17

DIFFHW

Digital input

Internal pull-down, active high, differential mono mode

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.

23

CSBIWO

Digital input

Internal pull-down

Wordlength:

Low for 16-bit data.

High for 20-bit

(normal) or 24-bit

Wordlength:

Low for 16-bit data.

High for 20-bit

(normal) or 24-bit

Wordlength:

Low for 20-bit data.

High for 24-bit data.

Low for

serial

interface

operation.

24

MODE

Digital input

Internal pull-up

Low for hardware

mode.

Low for left

mono mode. High for

right mono mode

DINR

High for

software

mode.

25

MUTEB

Digital input

Internal pull-up

Low to soft mute.

High for normal

operation.

Z for automute.

Low to soft mute.

High for normal

operation.

Z for automute.

Low to soft mute.

High for normal

operation.

Z for automute.

Low to soft

mute.

High for

normal

operation.

Z for

automute.

26

MD/DM0

Digital input

Internal pull-up

De-emphasis mode

select bit 0.

Low for no

de-emphasis.

High for 44.1kHz

de-emphasis.

LRP – LRCLK

polarity select.

Control serial

interface

data signal.

27

MC/DM1

Digital input

Internal pull-up

De-emphasis mode

select bit 1.

Low for normal filter

operation.

High for filter slow

roll-off.

Unused.

Leave unconnected.

Control serial

interface

clock signal.

28

ML/I2S

Digital input

Internal pull-up

Audio serial format:

Low – right justified.

Audio serial format:

Low – right justified.

Input data format:

Low – right justified.

High – left justified.

Control serial

interface

load signal.

Note: Digital input pins have Schmitt trigger input buffers except Pin 12 and Pin 17.