WM8729

Product Preview

WOLFSON MICROELECTRONICS LTD

PP Rev 1.2 April 2001

2

PIN CONFIGURATION

ORDERING INFORMATION

DEVICE

TEMP. RANGE

PACKAGE

XWM8729ED

-25 to +85

16-pin SOIC

VOUTL

VMID

VREFN

VREFP

MUTEB

FORMAT

DEM

DVDD

BCKIN

LRCIN

AVDD

WM8729

12

11

10

16

15

14

13

5

6

7

1

2

3

4

VOUTR

DGND

MCLK

DIN

9

8

AGND

PIN DESCRIPTION

PIN

NAME

TYPE

DESCRIPTION

1

LRCIN

Digital Input

DAC Sample Rate Clock Input

2

DIN

Digital Input

Serial Audio Data Input

3

BCKIN

Digital Input

Audio Data Bit Clock Input.

4

MCLK

Analogue Input

Master Clock Input

5

DGND

Supply

Digital Ground Supply

6

DVDD

Supply

Digital Positive Supply

7

VOUTR

Analogue Output

Right Channel DAC Output

8

AGND

Supply

Analogue Ground Supply

9

AVDD

Supply

Analogue Positive Supply

10

VOUTL

Analogue Output

Left Channel DAC Output

11

VMID

Analogue Output

Mid Rail Decoupling Point

12

VREFN

Supply

DAC Negative Reference – normally AGND, must not be below AGND

13

VREFP

Supply

DAC Positive Reference – normally AVDD, must not be above AVDD

14

MUTEB

Digital Bi-directional

Mute Control, (L = Mute on, H = Mute off, Z = Automute Enabled)

15

DEM

Digital Input

De-Emphasis Select

0 = De-Emphasis Off

1 = De-Emphasis On

16

FORMAT

Digital Input

(Pull-Up)

Digital Audio Data Input Format Selection

0 = Right justified Audio Data

1 = I

Note:

Digital input pins have Schmitt trigger input buffers.