A GaAs data switching IC for a gigabits per second communication system

A GaAs monolithic 4/spl times/4 switching circuit has been developed for high-speed digital communication systems. This switching IC, which has built-in address decoders, is completely ECL-compatible. Dynamic performance measurements on the chip mounted in a 32-pin flat package prove that it correctly switches pseudorandom data transmitted at more than 2 Gb/s, switching in 1 ns. The pulsewidth variation is only /spl plusmn/60 ps at 2 Gb/s. Very stable operation is observed from 0 to 70/spl deg/C ambient temperature for supply voltage fluctuations of /spl plusmn/5%.