Purdy Electronics Corporation • 720 Palomar Avenue • Sunnyvale, CA 94085

4/16/09

Tel: 408.523.8200 • Fax: 408.733.1287 • email@purdyelectronics.com

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www.purdyelectronics.com

Displays

Displays

Input/Output Terminals

TFT LCD Panel - Recommended connector Molex 51374-4073

Pin

Symbol

Input/Output

Description

1

CP3

C

Capacitor for power setting

2

CP4

C

Capacitor for power setting

3

CP5

C

Capacitor for charge pump

4

CP6

C

Capacitor for charge pump

5

CP7

C

Capacitor for charge pump

6

CP8

C

Capacitor for charge pump

7

DUMMY

–

Dummy

8

DUMMY

–

Dummy

9

PCD

C

Capacitor for pre-charge data signal high

10

VCOML

C

Capacitor for VCOM low

11

VCOMH

C

Capacitor for VCOM high

12

AGND

–

Analog ground

13

DUMMY

–

Dummy

14

AVDD

C

Regulation capacitor for analog voltage

15

CP1

C

Capacitor for charge pump

16

CP2

C

Capacitor for charge pump

17

PWM

O

Power transistor gate signal for the boost converter

18

FB

I

Main boost regulator feedback input

19

LED-

–

LED power: cathode; Note 1 below

20

DUMMY

–

Dummy

21

DUMMY

–

Dummy

22

LED+

–

LED power: anode; Note 1 below

23

GND

–

Ground

24

VCC

–

Power supply for digital circuit and charge pump circuit

25

VSYNC

I

Vertical sync input. Negative polarity

26

HSYNC

I

Horizontal syn input. Negative polarity

27

DCLK

I

Clock signal, latch data onto line latches at the rising edge

28

DIN0

I

Data input

29

DIN1

I

Data input

30

DIN2

I

Data input

31

DIN3

I

Data input

32

DIN4

I

Data input

33

DIN5

I

Data input

34

DIN6

I

Data input

35

DIN7

I

Data input

36

SDA

I/O

Serial interface data line

37

SCL

I

Serial interface clock line

38

SCEN

I

Serial interface chip enable line

39

SHDB

I

Shutdown input

40

GREST

I

System reset pin

Note 1: The figure to the left shows the connection of backlight LED.

ANDpSi025TD-LED-KIT