Title :
False-lock sources in charge-pump phase-lock loops
Author :
Niekolaas, G. ; Dulk, R. C Den ; Regenbogen, L.K.
Author_Institution :
Delft University of Technology, Department of Electrical Engineering, Delft, Netherlands
Abstract :
In spite of assumptions to the contrary, charge-pump phase-lock loops (CPPLL) with a phase-and-frequency detector can, in practice, stay in false lock, in the case of certain electronic implementations. False-lock sources are analysed for a CPPLL with a passive filter, and as a result design rules are given to prevent CPPLLs from false locking.
Keywords :
phase-locked loops; charge-pump phase-lock loops; false lock; passive filter;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19820384
