A 10-Gb/s high-isolation, 16 x 16 crosspoint switch implemented with AlGaAs/GaAs HBT's

A high-isolation, 16 x 16 crosspoint switch is reported, capable of aggrega te data throughput of 160 Gb/s with low crosstalk and output jitter. Each o f the 16 fully asynchronous channels can transmit data at rates up to 10 Gb /s with a worst case rms output jitter of 4 ps, Single channel operation ou tput jitter below 2.8-ps rms has been demonstrated. The high-isolation circ uitry allows for inter-channel crosstalk isolation of more than 40 dB with all channels operative. The circuit is based on AlGaAs/GaAs heterojunction bipolar transistor technology.