BUF22821

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SBOS399D

– JUNE 2007 – REVISED JULY 2011

PIN DESCRIPTIONS

PIN #

NAME

DESCRIPTION

1

VCOM2

VCOM channel 2

2

STATINH

Static gamma input high; voltage can be set by external voltage divider.

3

OUT21

DAC output 21

4

OUT22

DAC output 22

5

OUT1

DAC output 1

6

OUT2

DAC output 2

7

OUT3

DAC output 3

8

OUT4

DAC output 4

9

OUT5

DAC output 5

10

OUT6

DAC output 6

11, 28

GNDA

Analog ground; must be connected to digital ground (GNDD).

12, 27

VS

VS connected to analog supply

13

OUT7

DAC output 7

14

OUT8

DAC output 8

15

OUT9

DAC output 9

16

STATOUTH

Static gamma output high; connect to gamma input on source driver that is closest to VS.

17

VSD

Digital supply; connect to logic supply

18

SCL

Serial clock input; open-drain, connect to pull-up resistor.

19

SDA

Serial data I/O; open-drain, connect to pull-up resistor.

20

A0

A0 address pin for I2C address; either connect to logic 1 or logic 0.

21

BKSEL

Selects memory bank 0 or 1; either connect to logic 1 to select bank 1 or logic 0 to select bank 0.

22

GNDD

Digital ground; must be connected to analog ground at the BUF22821.

23

OUT10

DAC output 10

24

OUT11

DAC output 11

25

OUT12

DAC output 12

26

OUT13

DAC output 13

29

OUT14

DAC output 14

30

OUT15

DAC output 15

31

OUT16

DAC output 16

32

OUT17

DAC output 17

33

OUT18

DAC output 18

34

STATOUTL

Static gamma output low; connect to gamma input on source driver that is closest to GND

35

OUT19

DAC output 19

36

OUT20

DAC output 20

37

STATINL

Static gamma input low; voltage can be set by external voltage divider

38

VCOM1

VCOM channel 1

Copyright

© 2007–2011, Texas Instruments Incorporated

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