带通σ - δ调制器中Gm-C的非线性

Proceedings of the 43rd IEEE Midwest Symposium on Circuits and Systems (Cat.No.CH37144) Pub Date : 2000-08-08 DOI:10.1109/MWSCAS.2000.951584

P. Bénabès, M. Keramat, A. Gauthier, R. Kielbasa

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引用次数: 4

摘要

本文对用于带通σ - δ调制器的Gm-C滤波器的非线性进行了分析。只考虑小的三次非线性项。得到了一个非常简单的非线性谐振器模型。并对一个八阶调制器进行了建模。该模型用于预测谐振器对带通/spl Sigma//spl Delta/调制器输出的非线性影响。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Nonlinearity of Gm-C in bandpass sigma-delta modulators

In this paper, an analysis of nonlinearity in Gm-C filters for bandpass sigma-delta modulators is proposed. Only small cubic non-linear terms are considered. It results in a very simple model of nonlinear resonators. Modeling of an eighth order modulator is also presented. This model is used to predict resonators non-linear effects on the output of a bandpass /spl Sigma//spl Delta/ modulator.

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Proceedings of the 43rd IEEE Midwest Symposium on Circuits and Systems (Cat.No.CH37144)

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