General Description

The VSC7126 is a full-speed Fibre Channel Transceiver optimized for Host Adapter and other space- constrained applications. It accepts two 10-bit 8B/10B encoded transmit characters, latches them on the rising edge of TBC and serializes the data onto the TX+/- PECL differential outputs at a baud rate which is twenty times the TBC frequency. It also samples serial receive data on the RX+/- PECL differential inputs, recovers the clock and data, deserializes it onto two 10-bit receive characters, outputs a recovered clocks at one twentieth of the incoming baud rate and detects Fibre Channel “Comma” characters. The VSC7126 contains on-chip PLL circuitry for synthesis of the baud-rate transmit clock, and extraction of the clock from the received serial stream. These circuits are fully monolithic and require no external components.

特性 Features

? ANSI X3T11 Fibre Channel Compatible 1.0625

Gbps Full-duplex Transceiver

? GLM Compatible (FCSI-301-Rev 1.0)

? 20 Bit TTL Interface For Transmit And Receive Data

? Monolithic Clock Synthesis And Clock Recovery -

No External Components

? 53.125 MHz TTL Reference Clock

? Automatic Lock-to-Reference Function

? Suitable For Both Copper And Fiber

Optical Link Applications

? Low Power Operation - 850 mW

? 80 Pin, 14x14 mm PQFP

? Single +3.3V Power Supply