Datasheet DS90CR283MTD/NOPB - National Semiconductor IC, TRANSMITTER — Ficha de datos

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Manufacturer: National Semiconductor

Description: IC, TRANSMITTER

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Docket:
DS90CR283/DS90CR284 28-Bit Channel Link-66 MHz
July 2001
DS90CR283/DS90CR284 28-Bit Channel Link-66 MHz
General Description
The DS90CR283 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. The DS90CR284 receiver converts the LVDS data streams back into 28 bits of CMOS/TTL data. At a transmit clock frequency of 66 MHz, 28 bits of TTL data are transmitted at a rate of 462 Mbps per LVDS data channel. Using a 66 MHz clock, the data throughput is 1.848 Gbit/s (231 Mbytes/s). The multiplexing of the data lines provides a substantial cable reduction. Long distance parallel single-ended buses typically require a ground wire per active signal (and have very limited noise rejection capability). Thus, for a 28-bit wide data bus and one clock, up to 5

Specifications:

• Base Number: 90
• Interface: LVDS
• Mounting Type: SMD
• Number of Pins: 56
• Operating Temperature Range: -10°C to +70°C
• Package / Case: TSSOP
• Propagation Delay: 0.75 ns
• SVHC: No SVHC (15-Dec-2010)
• Supply Current: 70 mA
• Supply Voltage Range: 4.75 V to 5.25 V

RoHS: Yes