Title :
Bang-bang phase detector model revisited
Author :
Sanchez-Azqueta, Carlos ; Gimeno, Cecilia ; Aldea, Concepcion ; Celma, S. ; Azcona, C.
Author_Institution :
Group of Electron. Design - Aragon Inst. of Eng. Res. (GDE-i3A), Univ. de Zaragoza, Zaragoza, Spain
Abstract :
The operation of bang-bang phase detectors (BBPDs) in clock and data recovery circuits (CDRs) is typically modeled in terms of the phase difference between their inputs; however, this approach is not sufficient to describe their dynamic behavior completely. This paper introduces a more comprehensive model of the operation of BBPDs that takes into account phase as well as frequency differences between their inputs. Numerical simulations of the operation of a CDR have been carried out to evaluate the validity of the model.
Keywords :
clock and data recovery circuits; numerical analysis; phase detectors; BBPD; CDR; bang-bang phase detector model; clock and data recovery circuit; frequency difference; numerical simulation; phase difference; Clocks; Data models; Detectors; Integrated circuit modeling; Mathematical model; Transient analysis; Voltage-controlled oscillators;
Conference_Titel :
Circuits and Systems (ISCAS), 2013 IEEE International Symposium on
Conference_Location :
Beijing
Print_ISBN :
978-1-4673-5760-9
DOI :
10.1109/ISCAS.2013.6572206
