DS90CR218A Datasheet | National Semiconductor

DS90CR218A/DS90CR217 +3.3V Rising Edge Data Strobe LVDS 21-Bit Channel Link-85 MHz November 1999 DS90CR218A/DS90CR217 +3.3V Rising Edge Data Strobe LVDS 21-Bit Channel Link - 85 MHz 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. The DS90CR218A receiver converts the three LVDS data streams back into 21 bits of CMOS/TTL data. At a transmit clock frequency of 85 MHz, 21 bits of TTL data are transmitted at a...