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DS90CF561 Datasheet(PDF) 1 Page - National Semiconductor (TI) |
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DS90CF561 Datasheet(HTML) 1 Page - National Semiconductor (TI) |
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1 / 12 page  DS90CF561/DS90CF562 LVDS 18-Bit Color Flat Panel Display (FPD) Link General Description The DS90CF561 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. The DS90CF562 receiver converts the LVDS data streams back into 21 bits of CMOS/TTL data. At a transmit clock frequency of 40 MHz, 18 bits of RGB data and 3 bits of LCD timing and control data (FPLINE, FP- FRAME, DRDY) are transmitted at a rate of 280 Mbps per LVDS data channel. Using a 40 MHz clock, the data through- put is 105 Megabytes per second. These devices are offered with falling edge data strobes for convenient interface with a variety of graphics and LCD panel controllers. This chipset is an ideal means to solve EMI and cable size problems associated with wide, high speed TTL interfaces. Features n Up to 105 Megabyte/sec bandwidth n Narrow bus reduces cable size and cost n 290 mV swing LVDS devices for low EMI n Low power CMOS design n Power down mode n PLL requires no external components n Low profile 48-lead TSSOP package n Falling edge data strobe n Compatible with TIA/EIA-644 LVDS standard Block Diagrams TRI-STATE® is a registered trademark of National Semiconductor Corporation. DS90CF561 DS012485-26 Order Number DS90CF561MTD See NS Package Number MTD48 DS90CF562 DS012485-1 Order Number DS90CF562MTD See NS Package Number MTD48 July 1997 © 1998 National Semiconductor Corporation DS012485 www.national.com |
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