Summary
International Symposium on Nonlinear Theory and its Applications
2005
Session Number:1-2-2
Session:
Number:1-2-2-4
Nonlinear Analysis of Charge Pump Phase-Locked Loops
Raymond Flynn, Ketan Mistry, Paul Curran, Orla Feely,
pp.66-69
Publication Date:2005/10/18
Online ISSN:2188-5079
Summary:
This paper presents an analysis of the nonlinear dynamics of a Charge Pump Phase-Locked Loop. The closed-loop circuit is modelled using decision-based equations developed by Van Paemel. State space plots; bifurcation diagrams and the presence of a chaotic attractor all indicate a significant level of underlying nonlinear phenomena. A calculation of the fractal dimension of the chaotic attractor is performed, and its basin of attraction is found through simulations. Finally, the results obtained are compared to the results of a previous analysis of a different CP-PLL model.