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DS90CR217 Datasheet +3.3V Rising Edge Data Strobe LVDS

Manufacturer: National Semiconductor (now Texas Instruments)

General Description

The DS90CR217 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.

Overview

DS90CR217/DS90CR218 +3.3V Rising Edge Data Strobe LVDS 21-Bit Channel Link-75 MHz November 1999 DS90CR217/DS90CR218 +3.

Key Features

  • n 20 to 75 MHz shift clock support n 50% duty cycle on receiver output clock n Best.
  • in.
  • Class Set & Hold Times on TxINPUTs and RxOUTPUTs n Low power consumption n Tx + Rx Power-down mode < 400µW (max) n ± 1V common mode range (around +1.2V) n Narrow bus reduces cable size and cost n Up to 1.575 Gbps throughput n Up to 197 Megabytes/sec bandwidth n 345 mV (typ) swing LVDS devices for low EMI n PLL requires no external components n Rising edge data strobe n Compatible with TIA/EIA-6.