A2 Blind Oversampling FSE Receiver With Combined Adaptive Equalization and Infin

Abstract

A2 × blind-oversampling, fractionally spaced equal- izer (FSE) receiver is presented as an effective way to combine adaptive equalization and timing recovery in a single control loop. To additionally support plesiochronous clocking, the presented work realizes an infinite-range timing recovery using a set of two four-tap FSEs with a 0.5-UI timing offset, only one of which is selected to recover the data. The selection seamlessly alternates between the two, each time a 0.5-UI timing drift occurs.