HD66339 (TFT Driver)
64-level Grayscale Driver with 480 Outputs for the TFT
Liquid Crystal Display for SXGA and UXGA Systems
ADE-207-332(Z)
Rev.1.0
Nov. 2001
Description
The HD66339 is a TFT driver LSI suitable for UXGA systems (ten HD66339s used). It receives 6-bit-per-
pixel digital display data, and generates and outputs voltages for 64 grayscales. The output circuit includes
an operational amplifier and is capable of alternating outputs of positive-polarity and negative-polarity
voltages on individual output pins. This results in a high-quality display with minimal crosstalk.
The effective output voltage deviation is limited to about 鹵2 mV by incorporating the original chopper-type
amplifier circuit.
Features
鈥?/div>
High-speed operation
錚?/div>
Operating clock: 55 MHz (Vcc = 2.7 to 3.6 V) and 45 MHz (Vcc = 2.3 to 2.7 V)
鈥?/div>
Operational power-supply voltage range
錚?/div>
V
CC
= 2.3 to 3.6 V
錚?/div>
V
LCD
= 6.5 to 10.0 V
鈥?/div>
LCD drive voltage
錚?/div>
Low-voltage side: GND + 0.1 to V
LCD
/2 (V)
錚?/div>
High-voltage side: V
LCD
/2 to V
LCD
- 0.1 (V)
鈥?/div>
480 LCD drive circuits
鈥?/div>
Output voltage deviation
錚?/div>
鹵2 mV (effective value)
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