Comments on van paemel's mathematical model of charge-pump phase-locked loop

Research output: Contribution to journalArticlepeer-review

3 Scopus citations


The charge-pump phase-locked loop (CP-PLL) is one of widely used types of the phase-locked loop (PLL). A PLL is essentially nonlinear control system and its nonlinear analysis is a challenging task. Recently, we found some flaws in the well-known and frequently cited article "Analysis of a charge-pump PLL: A new model" published by M. van Paemel in the IEEE Transactions on Communications journal. In the present brief note the corresponding numerical and analytical examples are provided and the ways to correct the flaws are discussed.

Original languageEnglish
Pages (from-to)109-120
Number of pages12
JournalDifferencialnie Uravnenia i Protsesy Upravlenia
Issue number1
StatePublished - 1 Jan 2019

Scopus subject areas

  • Analysis
  • Applied Mathematics
  • Control and Optimization
  • Computer Science Applications
  • Information Systems
  • Software


  • Charge-pump phase-locked loop
  • Control of oscillators
  • Nonlinear dynamical model
  • Synchronization

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