FPD33680 Datasheet | National Semiconductor

Description The FPD33680 is a direct drive, 64 gray level, 480 output, TFT-LCD column driver with an RSDS™ data interface. It provides the capability to display 262,144 colors (18-bit color) with a large dynamic output range for twisted nematic applications. It is targeted to support SXGA applications up to a 75Hz refresh rate and UXGA applications up to a 60Hz refresh rate. Output voltages are gamma corrected to provide a direct mapping between digital video and LCD panel brightness. An RSDS (Reduced Swing Differential Signaling) interface is used between the timing controller and the column driver to minimize EMI and reduce power. The column driver with its interface offers a low power, low EMI column driver solution with direct-drive dynamic range and dot-inversion addressing. Features n RSDS (Reduced Swing Differential Signaling) data bus for low power, reduced EMI and small PCB foot print n 85MHz maximum operating frequency at VDD1=3.0V n RSDS pin location and RSDS Switch feature simplify PCB layout and improve EMI n Ideal for UXGA notebook applications n Smart Charge Conservation for low power consumption n 64 Gray levels per color (18-bit color) n Supports both Dot and N-Line inversion n Four externally programmable gamma curves n Very low offsets for artifact free images n Optional, high current, repair amplifiers System Diagram © 2003 National Semiconductor Corporation DS200710 .national. Absolute Maximum Ratings (Note 1) Analog Supply, (VDD2) (Note 2) Logic Supply, (VDD1) (Note 2) Low-Polarity RDAC Reference Voltages, (VGMA6 to VGMA10) (Note 2) High-Polarity RDAC Reference Voltages, (VGMA1 to VGMA5) (Note 2) RDAC Current (All Gamma Voltage Taps), (IGMA to IGMA10) Input Voltage (Digital Logic), (VIN) (Note 2) Output Voltage, (VOUT) (Note 2) Output Current (Analog), (IOUT) - 0.3V to +11.5V - 0.3V to +5.0V - 0.3V to 0.5VDD2 0.5VDD2 - 1.0V to VDD2 + 0.3V - 2.5m A to 2.5m A - 0.3V to VDD1 + 0.3V - 0.3V to VDD2 + 0.3V - 7m A to +7m A Storage...