Linearized discrete-time model of higher order Charge-Pump PLLs

Linearized discrete-time model of higher order Charge-Pump PLLs

In this paper, we derive linearized discrete-time models of higher order Charge-Pump Phase-Locked Loops (CPPLLs). The behaviour of CP-PLLs in the steady state is analysed and an important feature is developed. The nonlinear state equations of CP-PLLs are linearized around the equilibrium point. The...

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Bibliographische Detailangaben
Hauptverfasser: Chuang Bi, Curran, P. F., Feely, O.
Format: Tagungsbericht
Sprache:eng
Schlagworte:
Charge pumps
Equations
Integrated circuit modeling
Mathematical model
Phase locked loops
Voltage control
Voltage-controlled oscillators
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Beschreibung
Zusammenfassung:In this paper, we derive linearized discrete-time models of higher order Charge-Pump Phase-Locked Loops (CPPLLs). The behaviour of CP-PLLs in the steady state is analysed and an important feature is developed. The nonlinear state equations of CP-PLLs are linearized around the equilibrium point. The linearized discrete-time model is finally verified using behavioral simulations in Matlab and PSpice.
DOI:10.1109/ECCTD.2011.6043385