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Please use this identifier to cite or link to this item: http://hdl.handle.net/10197/3590

Title: Frequency quantization in first-order digital phase-locked loops with frequency-modulated input
Authors: Tertinek, Stefan
Teplinsky, Alexey
Feely, Orla
Keywords: Phase-locked loops
Quantization
Phase jitter
Issue Date: Dec-2007
Abstract: Frequency granularity in a digital phase-locked loop arises from quantization in the number-controlled oscillator which prevents the loop from locking exactly onto its reference signal and introduces unwanted phase jitter. Based on a nonlinear analysis of trajectories in the phase space, we have recently investigated the effect of frequency quantization in a first-order loop with a frequency-modulated input signal and have derived useful bounds on the steady-state phase jitter excursion. In this paper, we continue that work and derive the maximum modulation amplitude such that loop cycle slipping is avoided. We also examine in detail the loop behavior in acquiring phase-lock.
Description: Presented at the International Workshop on Nonlinear Maps and their Applications (NOMA '07), INSA, Toulouse, December 13-14, 2007
URI: http://hdl.handle.net/10197/3590
Appears in Collections:Electrical, Electronic and Communications Engineering Research Collection

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