TFT LCD Source Driver - Novatek
Description
NT3966
TFT LCD Source Driver
Features n Output : 420 output channels n 6-bit resolution /64 gray scale n Dot inversion with polarity control n V1 ~ V10 for adjusting Gamma correction n Power for analog circuit : 6.
5 ~ 10 V n Output dynamic range : 0.
1 ~ AVDD-0.
1V n Power consumption of analog circuit : 3mA General Description The NT3966 is a data driver IC for a color TFT LCD panel, SXGA+(1400*1050) applications.
For better performance, dot inversion and a wide range voltage output have been designed into this chip, and for reducing EMI, data inversion control has been incorporated.
This chip supplies 10 sections of voltage-reference for Gamma correction.
n Power for interface circuit : 2.
5~3.
6V n Operating frequency : 65MHz n Output deviation : 10 ~ 20mV n Data inversion for reducing EMI n Cascade function with bi-direction shift control n CMOS silicon gate ( p-type substrate ) n TCP package
Block diagram
OUT1 OUT2
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OUT3
OUT420 OUT419
Out Driver Buffer ( 420 channels )
V1 ~ V10
10
Digit to Analog Converter
6 6 6 6 6
POL
REV1
D00 ~ D05 D10 ~ D15 D20 ~ D25 D30 ~ D35 D40 ~ D45 D50 ~ D55
Level Shift
6 6 6 6 6 6 Decoder
1 64
6 Decoder 18
6
6
6
6
Line Latch ( 420 X 6 bits X 2 )
18
LD
REV2 DIO1
70-bit Shift Register
DIO2
Vcc
GND
AVDD
AVSS
CLK
SHL
Version 1.
0
1
DEC 7 ,2001
NT3966 TFT LCD Source Driver
NT3966 Pads configuration (Face up): This figure does not specify the TCP package.
DIO2 D55 D54 D53 D52 D51 D50 D45 D44 D43 D42 D41 D40 D35 D34 D33 D32 D31 D30 Vcc SHL V10 V9 V8 V7 V6 AVDD AVSS V5 V4 V3 V2 V1 GND CLK LD POL REV1 REV2 D25 D24 D23 D22 D21 D20 D15 D14 D13 D12 D11 D10 D05 D04 D03 D02 D01 D00 DIO1
OUT420 OUT419 OUT418 OUT417 OUT416
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NT3966
OUT5 OUT4 OUT3 OUT2 OUT1
Version 1.
0
2
DEC 7 ,2001
NT3966 TFT LCD Source Driver
Pin Description Designation D05 ~ D00 D15 ~ D10 D25 ~ D20 D35 ~ D30 D45 ~ D40 D55 ~ D50 REV1 REV2 CLK V1 ~ V10 OUT1 ~ OUT420 SHL I/O I Description Data input.
For six 6-bit...
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