Fast-Locking Burst-Mode Clock and Data Recovery for Parallel VCSEL-Based Optical Link Receivers
A burst-mode clock-and-data-recovery (CDR) system for a multi-channel vertical-cavity surface-emitting laser (VCSEL)-based non-return-to-zero (NRZ) optical link’s quarter-rate receivers is presented, that utilizes proxy timing recovery for fast turn-on time.The proxy timing recovery scheme takes advantage of correlated data jitter over paral