Enhanced phase noise model for quartz crystal oscillators

被引：8

作者：

Galliou, S ^{[1
]}

Sthal, F ^{[1
]}

Mourey, M ^{[1
]}

机构：

[1] Ecole Natl Super Mecan & Microtech, Lab Chronometrie Elect & Piezoelect, Besancon, France

来源：

PROCEEDINGS OF THE 2002 IEEE INTERNATIONAL FREQUENCY CONTROL SYMPOSIUM & PDA EXHIBITION | 2002年

关键词：

phase noise; quartz resonator; crystal oscillator;

D O I：

10.1109/FREQ.2002.1075958

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

Leeson's model is the basic model for predicting oscillator noise. G. Sauvage has proposed a mathemetical analysis of this "heuristic" model. Both models do not detailed the relative importance of the amplifier transfer function associated to its own noise in regard with the resonator one. In this paper, an improved version of these previous models is presented. Amplifier caused noise and the one cause by the resonator are distinguished. Power spectral densities of phase noise at various points of the oscillator. loop are calculated from their respective correlation functions. As a consequence, the influences of the amplifier and resonator inner noises on the resulting oscillator noise are predictable. Nonlinearities could also be included in this more general model. An example of phase noise modeling of the Clapp quartz crystal oscillator is simulated and discussed.

引用

页码：627 / 632

页数：6

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