Nonlinear Analysis of Charge-Pump Phase-Locked Loop : The Hold-In and Pull-In Ranges
Kuznetsov, N., Matveev, A., Yuldashev, M., & Yuldashev, R. (2021). Nonlinear Analysis of Charge-Pump Phase-Locked Loop : The Hold-In and Pull-In Ranges. IEEE Transactions on Circuits and Systems I : Regular Papers, 68(10), 4049-4061. https://doi.org/10.1109/tcsi.2021.3101529
Julkaistu sarjassa
IEEE Transactions on Circuits and Systems I : Regular PapersPäivämäärä
2021Tekijänoikeudet
© 2021 IEEE
In this paper a fairly complete mathematical model of CP-PLL, which reliable enough to serve as a tool for credible analysis of dynamical properties of these circuits, is studied. We refine relevant mathematical definitions of the hold-in and pull-in ranges related to the local and global stability. Stability analysis of the steady state for the charge-pump phase locked loop is non-trivial: straight-forward linearization of available CP-PLL models may lead to incorrect conclusions, because the system is not smooth near the steady state and may experience overload. In this work necessary details for local stability analysis are presented and the hold-in range is computed. An upper estimate of the pull-in range is obtained via the analysis of limit cycles. The study provided an answer to Gardner's conjecture on the similarity of transient responses of CP-PLL and equivalent classical PLL and to conjectures on the infinite pull-in range of CP-PLL with proportionally-integrating filter.
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Institute of Electrical and Electronics Engineers (IEEE)ISSN Hae Julkaisufoorumista
1549-8328Asiasanat
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https://converis.jyu.fi/converis/portal/detail/Publication/99290380
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