Data transient insensitive phase-locked loops

This paper presents a comparable study of the locking characteristics of phase-locked loops (PLLs) with an integrating bang-bang phase detector with that of PLLs with an Alexander full-rate bang-bang phase detector. Both periodic and single-event data transients are used to investigate the lock performance of two PLLs with identical configuration and components but different phase detectors. Simulation results demonstrate that PLL with a full-rate Alexander bang-bang phase detector fails to lock when incoming data stream is corrupted with data transients whereas that with an integrating bang-bang phase detector successfully establishes lock.