DS90CF383BMT/NOPB

LVDS 接口集成电路 3.3V Prgrmmable LVDS Transmitter 24B

**DESCRIPON**

The DS90C383B transmitter converts 28 bits of CMOS/TTL data into four LVDS Low Voltage Differential Signaling data streams. A phase-locked transmit clock is transmitted in parallel with the data streams over a fifth LVDS link. Every cycle of the transmit clock 28 bits of input data are sampled and transmitted. At a transmit clock frequency of 65 MHz, 24 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 227 Mbytes/sec. The DS90C383B 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 DS90CF386 without any translation logic.

**1****FEATURES**

**23****• 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 Setup and Hold Times on ****TxINPUTs**

**• Tx power consumption < 130 mW typ at ****65MHz Grayscale**

**• 40% Less Power Dissipation than BiCMOS ****Alternatives**

**• Tx Power-down mode < 60**μ**W typ**

**• Supports VGA, SVGA, XGA and Dual Pixel ****SXGA.**

**• Narrow bus reduces cable size and cost**

**• Up to 1.8 Gbps throughput**

**• Up to 227 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 56-lead TSSOP package**

**• Improved replacement for:**

**– SN75LVDS83, DS90C383A**