A 10-Gb/s CMOS clock and data recovery circuit

Abstract

A 10-Gb/s phase-locked clock and data recovery circuit incorporates a 5-GHz interpolating voltage-controlled oscillator and a half-rate phase detector. The phase detector provides a linear characteristic while retiming and demultiplexing the data with no systematic phase offset. Fabricated in a 0.18-/spl mu/m CMOS technology, the circuit exhibits an rms jitter of 6.6 ps in the recovered clock with random data input of length 2/sup 23/-1. The power dissipation is 99 mW from a 2.6-V supply.