Low Power/ Low EMI/ TFT-LCD Column Driver with RSDS Inputs/ 64 Grayshades/ and 384 Outputs for XGA/SXGA Applications - National Semiconductor
Description
FPD33684 Low Power, Low EMI, TFT-LCD Column Driver with RSDS Inputs, 64 Grayshades, and 384 Outputs for XGA/SXGA Applications
May 2002
FPD33684A/ FPD33684B Low Power, Low EMI, TFT-LCD Column Driver with RSDS™ Inputs, 64 Grayshades, and 384 Outputs for XGA/SXGA Applications
General Description
The FPD33684 Column Driver is a direct drive, 64 gray level, 384 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.
When used in a bank with other FPD33684 column drivers, the FPD33684 can support both XGA (8 drivers) or SXGA (10 drivers) applications.
Output voltages are programmably 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 FPD33684 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 Up to 85MHz clock n Supports both XGA and SXGA timing n Supports notebook and monitor 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 Externally programmable gamma characteristic n Very low offsets for artifact-free images n High voltage outputs for high contrast in a large range of display panel applications n Optional, high current, repair line buffers n Available in 2 common gamma reference curves
Ordering Information Part Number FPD33684 Gamma Curve A or B Custom TCP # XX(Note 1) Package Suffix CT
Note 1: Custom TCP # is assigned by National Semiconductor for each custom TCP design
System Diagram
DS200113-1
© 2002 National Semiconductor Corporation
DS200113
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