DESCRIPTION

The μ PD16772 is a source driver for TFT-LCDs capable of dealing with displays with 64-gray scales. Data input is based on digital input configured as 6 bits by 6 dots (2 pixels), which can realize a full-color display of 260,000 colors by output of 64 values γ -corrected by an internal D/A converter and 5-by-2 external power modules. Because the output dynamic range is as large as VSS2 + 0.1 V to VDD2 – 0.1 V, level inversion operation of the LCD’s common electrode is rendered unnecessary.

FEATURES

? CMOS level input (2.3 to 3.6 V)

? 480 outputs

? Input of 6 bits (gradation data) by 6 dots

? Capable of outputting 64 values by means of 5-by-2 external power modules (10 units) and a D/A converter (RDAC)

? Output dynamic range : VSS2 + 0.1 V to VDD2 – 0.1 V

? High-speed data transfer : fCLK = 45 MHz (internal data transfer speed when operating at VDD1 = 2.3 V)

? Apply for dot-line inversion, n-line inversion and column line inversion

? Output voltage polarity inversion function (POL)

? Display data inversion function (POL21/22)

? Current consumption reduction function (LPC, Bcont)

? Logic power supply voltage (VDD1) : 2.3 to 3.6 V

? Driver power supply voltage (VDD2) : 8.5 V ± 0.5 V