The DS90C363B transmitter converts 21 bits of CMOS/TTL data into three LVDS (Low Voltage Differential Signaling) data streams. A phase-locked transmit clock is transmitted in parallel with the data streams over a fourth LVDS link. Every cycle of the transmit clock 21 bits of input data are sampled and transmitted. At a transmit clock frequency of 65 MHz, 18 bits of RGB data and 3 bits of LCD timing and control data (FPLINE, FPFRAME, DRDY) are transmitted at a rate of 455 Mbps per LVDS data channel. Using a 65 MHz clock, the data throughput is 170 Mbytes/sec. The DS90C363B transmitter can be programmed for Rising edge strobe or Falling edge strobe through a dedicated pin. A Rising edge or Falling edge strobe transmitter will interoperate with a Falling edge strobe Receiver (DS90CF366) without any translation logic.

This chipset is an ideal means to solve EMI and cable size problems associated with wide, high speed TTL interfaces.

• No special start-up sequence required between clock/data and /PD pins. Input signal (clock and data) can be applied either before or after the device is powered.
• Support Spread Spectrum Clocking up to 100kHz frequency modulation and deviations of ±2.5% center spread or −5% down spread.
• "Input Clock Detection" feature will pull all LVDS pairs to logic low when input clock is missing and when /PD pin is logic high.
• 18 to 68 MHz shift clock support
• Best–in–Class Set & Hold Times on TxINPUTs
• Tx power consumption < 130 mW (typ) at 65MHz Grayscale
• 40% Less Power Dissipation than BiCMOS Alternatives
• Tx Power-down mode < 37μW (typ)
• Supports VGA, SVGA, XGA and Dual Pixel SXGA.
• Narrow bus reduces cable size and cost
• Up to 1.3 Gbps throughput
• Up to 170 Megabytes/sec bandwidth
• 345 mV (typ) swing LVDS devices for low EMI
• PLL requires no external components
• Compatible with TIA/EIA-644 LVDS standard
• Low profile 48-lead TSSOP package
• Improved replacement for:
  • SN75LVDS84, DS90C363A

All trademarks are the property of their respective owners. TRI-STATE is a trademark of Texas Instruments. TRI-STATE is a trademark of Texas Instruments.

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