A 1.5 GBaud/sec Serial Link Monolithic Chip Set

A 1.5 GBaud/s serial data link comprised of a 2-chip set capable of transporting up to 21 parallel bits was successfully fabricated using a 25 GHz peak ft silicon bipolar process. This link features a new encoding scheme which allows DC balance in the serial stream, as well as an internally generated clock which phase locks to the user's clock at the transmitter, and full clock recovery and data retiming at the receiver. In addition, a controller integrated with the link handles handshaking at start up for full duplex operation.