WM8718

Production Data

w

PD Rev 4.3 November 2006

6

PIN DESCRIPTION – 24 LEAD QFN

PIN

NAME

TYPE

DESCRIPTION

1

DVDD

Supply

Positive Digital Supply

2

DGND

Supply

Ground Digital Supply

3

AVDD

Supply

Positive Analogue Supply

4

VREFP

Supply

Positive DAC reference Supply

5

VREFN

Supply

Negative DAC reference Supply

6

AGND

Supply

Ground Analogue Supply

7

VMID

Analogue Output

Mid Rail Decoupling Point

8

VOUTRP

Analogue Output

Right Channel DAC Output Positive

9

VOUTRN

Analogue Output

Right Channel DAC Output Negative

10

VOUTLN

Analogue Output

Left Channel DAC Output Negative

11

VOUTLP

Analogue Output

Left Channel DAC Output Positive

12

NC

No Connect

No Connect

13

NC

No Connect

No Connect

14

LATCH

Digital Input P.U.

Serial Control Load Input

15

SDIN

Digital Input

Serial Control Data Input

16

SCLK

Digital Input P.D.

Serial Control Data Input Clock

17

ZEROFR

Digital Output (Open drain)

Infinite ZERO Detect Flag for Right Channel

18

NC

No Connect

No Connect

19

ZEROFL

Digital Output (Open drain)

Infinite ZERO Detect Flag for Left Channel

20

MCLK

Digital Input

Master Clock Input

21

BCLKIN

Digital Input

PCM Audio Data Bit Clock Input

22

DIN

Digital Input

PCM Serial Audio Data Input

23

LRCIN

Digital Input

PCM DAC Sample Rate Clock Input

24

NC

No Connect

No Connect

Note:

1.

Digital input pins have Schmitt trigger input buffers. Pins marked `P.U.` or `P.D.` have an internal pull-up or pull-down

resistor.

2.

It is recommended that the QFN ground paddle should be connected to analogue ground on the application PCB.