WM8718

Production Data

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PD Rev 4.1 March 2004

4

PIN DESCRIPTION

PIN

NAME

TYPE

DESCRIPTION

1

LRCIN

Digital Input

PCM DAC Sample Rate Clock Input

2

DVDD

Supply

Positive Digital Supply

3

DGND

Supply

Ground Digital Supply

4

AVDD

Supply

Positive Analogue Supply

5

VREFP

Supply

Positive DAC reference Supply

6

VREFN

Supply

Negative DAC reference Supply

7

AGND

Supply

Ground Analogue Supply

8

VMID

Analogue Output

Mid Rail Decoupling Point

9

VOUTRP

Analogue Output

Right Channel DAC Output Positive

10

VOUTRN

Analogue Output

Right Channel DAC Output Negative

11

VOUTLN

Analogue Output

Left Channel DAC Output Negative

12

VOUTLP

Analogue Output

Left Channel DAC Output Positive

13

LATCH

Digital Input P.U.

Serial Control Load Input

14

SDIN

Digital Input

Serial Control Data Input

15

SCLK

Digital Input P.D.

Serial Control Data Input Clock

16

ZEROFR

Digital Output (Open drain) P.D.

Infinite ZERO Detect Flag for Right Channel

17

ZEROFL

Digital Output (Open drain) P.D.

Infinite ZERO Detect Flag for Left Channel

18

MCLK

Digital Input

Master Clock Input

19

BCLKIN

Digital Input

PCM Audio Data Bit Clock Input

20

DIN

Digital Input

PCM Serial Audio Data Input

Note:

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