A low-jitter 16:1 MUX and a high-sensitivity 1:16 DEMUX with integrated 39.8 to 43GHz VCO for OC-768 communication systems

Abstract

A fully integrated 39.8 to 43Gb/s OC-768 16:1 MUX/DEMUX chipset is implemented in a 0.18/spl mu/m BiCMOS process. Full-rate operation is realized with an on-chip VCO, and the chipset dissipates 11.6W. The measured output jitter of the packaged MUX is 630fs, and the sensitivity of DEMUX is 31 mV/sub PP/ single-ended with a BER <10/sup -12/.