WM9709

Production Data

w

PD Rev 1.3 February 2003

2

PIN CONFIGURATION

ORDERING INFORMATION

DEVICE

TEMP. RANGE

PACKAGE

WM9709CDS

0

20-pin SSOP

WM9709CDS/R

0

20-pin SSOP

Tape and Reel

330mm Reel

16mm wide tape

2000 units/reel

12

11

5

6

7

1

2

3

4

8

9

10

DVDD

ID

NC

LINEOUTR

LINEOUTL

CAP

NC

NC

AVDD

AGND

RESETB

XTLOUT

SDATAOUT

XTLIN

SYNC

AGND

SDATAIN

DGND

NC

BITCLK

13

14

15

16

17

18

19

20

PIN DESCRIPTION

PIN

NAME

TYPE

DESCRIPTION

1

RESETB

Digital input

NOT reset input (active low, resets digital circuitry)

2

ID

Digital input

AC link Data slot select.

Low = Normal stereo (slots 3,4),

High = Surround (slots 7,8),

High impedance (Z) = LFE and centre (slots 6,9)

3

DVDD

Supply

Digital positive supply

4

XTLIN

Digital input

Clock crystal connection or clock input (XTAL not used)

5

XTLOUT

Digital output

Clock crystal connection

6

SDATAOUT

Digital input

Serial data input

7

BITCLK

Digital output (master)

Or digital input (slave)

Serial interface clock output to AC-link controller if ID pin held

low (WM9709 is master).

Serial interface clock input from AC-link master if ID pin held

either high or high impedance (WM9709 is slave).

8

DGND

Supply

Digital ground supply

9

SDATAIN

Digital output

Serial data output to AC-link controller

10

SYNC

Digital input

Serial interface sync pulse from AC-link controller

11

AGND

Supply

Analogue ground supply, chip substrate

12

NC

No internal connection

13

NC

No internal connection

14

CAP

Analogue input

Reference input/output; internal divider generates midrail

15

NC

No internal connection

16

LINEOUTL

Analogue output

Main analogue output for left channel

17

LINEOUTR

Analogue output

Main analogue output for right channel

18

NC

No internal connection

19

AVDD

Supply

Analogue positive supply

20

AGND

Supply

Analogue ground supply, chip substrate