WM8200

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PP Rev 1.22 March 2002

3

PIN DESCRIPTION

PIN

NAME

TYPE

DESCRIPTION

1

DO1

DO3

Digital Output

Digital output bit

2

DO2

DO4

Digital Output

Digital output bit

3

DO3

DO5

Digital Output

Digital output bit

4

DO4

DO6

Digital Output

Digital output bit

5

DO5

DO7

Digital Output

Digital output bit

6

DO6

DO8

Digital Output

Digital output bit

7

DO7

DO9

Digital Output

Digital output bit

8

DO8

DO10

Digital Output

Digital output bit

9

DO9

DO11

Digital Output

Digital output bit (MSB)

10

SCLK

Digital Input

3-Wire Control Interface Clock Input

11

DGND

Ground

Negative Digital Supply

12

CLK

Analogue Input

Clock input

13

CSB

Digital Input

3-Wire Control Interface Chip Select

14

SDIN

Digital Input

3-Wire Control Interface Data Input

15

REFSENSE

Analogue Input

VREF feedback/configuration control

16

CLAMP

Digital Input

High to enable clamp mode, low to disable clamp mode

17

REFT

Analogue Input/Output

Top ADC reference voltage

18

MODE

Analogue Input

High (MODE=AVDD) to enable internal ADC references.

Low (MODE=AVSS) to enable use of external ADC references applied to

REFT and REFB.

19

REFB

Analogue Input/Output

Bottom ADC reference voltage

20

AINN

Analogue Input

Positive analogue input

21

AINP

Analogue Input

Negative analogue Input

22

VREF

Analogue Input/Output

Internal/external reference voltage

23

AVDD

Supply

Positive Analogue Supply

24

AGND

Ground

Negative Analogue Supply

25

DVDD

Supply

Positive Digital Supply

26

NC

DO0

Digital Output

Not internally connected (10-bit option)/

Digital output bit (LSB for 12-bit option only)

27

NC

DO1

Digital Output

Not internally connected (10-bit option) /

Digital output bit (for 12-bit Option Only)

28

DO0

DO2

Digital Output

Digital output bit (LSB for 10-bit Option)