NT3980 Ver la hoja de datos (PDF) - Unspecified

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NT3980

TFT LCD Source Driver

Unspecified 

NT3980

TFT LCD Source Driver

Power on/off sequence:

This IC is a high-voltage LCD driver, so it may be damaged by a large current flow when an incorrect power sequence is used.

The recommended connection sequence is to first connect the logical power, Vcc & GND and then connect the drive power,

AVDD&AVSS with V1~V10. When shutting off the power, first shut off the drive power and then the logic system, or turn off all

power simultaneously.

Relationship between the order of input data and output channels

(1) SHL=”1”, shift right, a start pulse from DIO1

Output OUT1 OUT2 OUT3 OUT4 OUT5 OUT6

- --

Order

First data

--à

Data D07~D00 D17~D10 D27~D20 D37~D30 D47~D40 D57~D50 - - -

OUT384

Last data

D57~D50

(2) SHL=”0” , shift left, a start pulse from DIO2

Output OUT379 OUT380 OUT381 OUT382 OUT383 OUT384 - - -

Order

First data

--à

Data D07~D00 D17~D10 D27~D20 D37~D30 D47~D40 D57~D50 - - -

OUT6

Last data

D57~D50

Relationship between input data and output voltage

The figure below shows the relationship among the input data and the output voltage and the polarity. The range of V1~V5 is

for positive polarity, and V6 ~ V10 for negative polarity. Please refer to the following page to get the relative resistors value and

voltage calculation method.

Gamma correction diagram

Vout

AVDD

V1

V2

V3

V4

V5

Vcom

V6

V7

V8

V9

Positive polarity

Negative polarity

V10

AVSS

00

31

63

95

127

159

191

223

Remark : AVDD-0.1>V1>V2>V3>V4>V5>AVDD/2; AVDD/2>V6>V7>V8>V9>V10>0.1

255 Input Data

Version 1.0

4

October 16, 2001

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