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NT3980

TFT LCD Source Driver

Features

n

Output: 384 output channels

n

8-bit resolution /256 gray scales

n

Dot inversion with polarity control

n

V1 ~ V10 for adjusting Gamma correction

n

Power for analog circuit: 7 ~ 10V

n

Output dynamic range: 0.1V ~ AV

DD-0.1

n

Power consumption of analog circuit: 6mA

n

Operating frequency: 70MHz(Vcc:3.0V~3.6V)

45MHz(Vcc:2.5V~3.0V)

n

Output deviation: 鹵2mv

n

Data inversion for reducing EMI

n

Cascade function with bi-direction shift control

n

CMOS silicon gate ( p-type substrate )

n

TCP package

General Description

The NT3980 is a data driver IC for a color TFT LCD panel, XGA and SXGA applications. It receives 8 bit per-pixel digital display

data,and generates output voltage for 256 grayscales ,enabling a maximum of 16.77M display colors . For better performance,

dot inversion and a wide range voltage output, 10V, are designed in this chip, and for reducing EMI, data inversion control is

used. This chip supplies 10 sections of voltage -reference for Gamma correction.

Block diagram

OUT1

OUT2

OUT3

OUT384

OUT383

Out Driver Buffer ( 384 channels )

V1 ~ V10

10

Digital to Analog Converter

8

8

8

8

8

POL

REV1

REV2

D00 ~ D07

D10 ~ D17

D20 ~ D27

D30 ~ D37

D40 ~ D47

D50 ~ D57

Level Shift

8

8

8

8

8

8

1

64

8

8

8

8

8

48

Decoder

Line Latch ( 384 X 8 bits X 2 )

LD

DIO1

64 Shift Registers

DIO2

Vcc

GND

AVDD

AVSS

CLK

SHL

Version 1.0

1

October 16, 2001

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