48 Gbit/s InP DHBT MS-DFF with very low time jitter

A master-slave D-type flip-flop (MS DFF) fabricated in a self-aligned InP DHBT technology is presented. The packaged circuit shows full-rate clock operation at 48 Gbit/s. Very low time jitter and good retiming capabilities are observed. Layout aspects, packaging and measurement issues are discussed in particular.