Title :
Accurate models for Frequency Synthesizers
Author :
Gonzalez-Diaz, Victor R. ; Garcia-Andrade, Miguel A. ; Guillermo Espinosa, F.V.
Author_Institution :
Nat. Inst. for Astrophys. Opt. & Electron., Puebla
fDate :
Aug. 31 2008-Sept. 3 2008
Abstract :
An accurate Noise description in behavioral models for Fractional-N Frequency Synthesizers is presented. It is demonstrated that a noise-addition-like synthesizerpsilas model yields a better Phase-Noise prediction than a time-domain jitter model. This allows a more direct analysis of the noise contribution of every circuit in the Frequency Synthesizers and avoids simulation inaccuracies when very low Phase-Noise designs are held.
Keywords :
CMOS integrated circuits; charge pump circuits; frequency synthesizers; jitter; phase locked loops; phase noise; time-domain analysis; voltage-controlled oscillators; fractional-N frequency synthesizers; phase locked loop configuration; phase-noise prediction; time-domain jitter model; voltage controlled oscillator; Astrophysics; Circuit noise; Frequency synthesizers; Jitter; Mathematical model; Optical computing; Optical noise; Phase locked loops; Phase noise; Predictive models;
Conference_Titel :
Electronics, Circuits and Systems, 2008. ICECS 2008. 15th IEEE International Conference on
Conference_Location :
St. Julien´s
Print_ISBN :
978-1-4244-2181-7
Electronic_ISBN :
978-1-4244-2182-4
DOI :
10.1109/ICECS.2008.4675004
