An SFI-5 compliant 16:4 multiplexer for OC-768 systems

A fully integrated SFI-5 compliant 16:4 multiplexer for OC-768/STM-256 systems is implemented in a 0.18 /spl mu/m 120 GHz SiGe technology. The chip recovers sixteen 2.488 Gb/s inputs, aligns them according to the deskew channel and multiplexes them onto 4 streams of 10 Gb/s data. The measured BER is <10/sup -12/. The chip dissipates 4.8 W from 1.8 V and 3.3 V power supplies.