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DESCRIPTION

The μ PD16732A, 16732B are 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. Also, to be able to deal with dot-line inversion, n-line inversion and column line inversion when mounted on a single side, this source driver is equipped with a built-in 6-bit D/A converter circuit whose odd output pins and even output pins respectively output gray scale voltages of differing polarity. Assuring a maximum clock frequency of 65 MHz when driving at 3.0 V, 45 MHz when driving at 2.3 V, this driver is applicable to XGA-standard TFT-LCD panels and SXGA TFT-LCD panels by input display signal 2 systems (Clock divide).

FEATURES

? CMOS level input (2.3 V to 3.6 V)

? 384 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 (R-DAC)

? High-speed data transfer: fMAX. = 65 MHz (internal data transfer speed when operating at VDD1 = 3.0 V)

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

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

? Output Voltage polarity inversion function (POL)

? Display data inversion function (POL2)

? Low power control function (LPC)

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

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

? Different point between μ PD16732A, 16732B : The ladder resistors value(Refer to 5. RELATIONSHIP BETWEEN INPUT DATA AND OUTPUT VOLTAGE VALUE)