Nonlinear state-space model of charge-pump based frequency synthesizers

Abstract

A novel and accurate nonlinear model to estimate the settling time of charge-pump based frequency synthesizers is presented. The correlation between the synthesizer lock time and the linear detection range of the phase-frequency detector is extensively investigated. An accurate analytical expression for the settling time of the frequency synthesizer is… (More)
DOI: 10.1109/ISCAS.2005.1465624

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