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Low EMI, Low Dynamic Power (SVGA) XGA/WXGA TFT-LCD Timing Controller with Reduced Swing Differential Signaling (RSDS™) Outputs
National Semiconductor
Description
The FPD87346 is a timing controller that combines an LVDS single pixel input interface with National's Reduced Swing Differential Signaling (RSDS™) output driver interface for (SVGA) XGA and Wide XGA resolutions. It resides on the TFT-LCD panel and provides the data buffering and control signal generation for (SVGA) XGA, and Wide XGA graphic modes. The RSDS™ path to the column driver contributes toward lowering radiated EMI and reducing system dynamic power consumption. This single RSDS™ bus conveys the 8-bit color data for (SVGA) XGA, and Wide XGA panels at 170 Mb/s when using VESA 60 Hz standard timing.
Features
• Reduced Swing Differential Signalling (RSDS™) digital bus reduces dynamic power, EMI and bus width from the timing controller
• LVDS single pixel input interface system
• Input clock range from 40 MHz to 85 MHz
• Drives RSDS™ Column Drivers at 170 Mb/s with an 85 MHz clock (Max.)
• Virtual 8 bit color depth in FRC/Dithering mode
• Single narrow 9-bit differential Source Driver bus minimizes width of Source PCB
• Ability to drive (SVGA) XGA and Wide XGA TFT-LCD Systems
• Failure detect function in DE mode
• CMOS circuitry operates from a 3.0V-3.6V supply
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