DocumentCode
841585
Title
Digital fast acquisition method for phase-lock loops
Author
den Dulk, Richard C.
Author_Institution
Dept. of Electr. Eng., Delft Univ. of Technol.
Volume
24
Issue
17
fYear
1988
fDate
8/18/1988 12:00:00 AM
Firstpage
1079
Lastpage
1080
Abstract
A method for enhancing the frequency-acquisition performance of phase-lock loops (PLLs) is presented, which can be used in all PLLs that employ sequential phase detectors. The proposed method always forces the PLL into the phase-acquisition mode by realising a phase detector transfer characteristic with a pseudolinear infinite phase range. Especially in the case of charge-pump PLLs the proposed method is very useful. Practical results show that the acquisition performance can increase by nearly two orders of magnitude
Keywords
digital circuits; phase-locked loops; PLL; charge-pump PLLs; digital fast acquisition method; frequency-acquisition performance; phase detector transfer characteristic; phase-acquisition mode; phase-lock loops; pseudolinear infinite phase range; sequential phase detectors;
fLanguage
English
Journal_Title
Electronics Letters
Publisher
iet
ISSN
0013-5194
Type
jour
Filename
191747
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