Prediction of the Spectrum of a Digital Delta-Sigma Modulator Followed by a Polynomial Nonlinearity

被引：15

作者：

Hosseini, Kaveh

Kennedy, Michael Peter ^{[1
,2
]}

Lewis, Stephen H. ^{[3
]}

Levy, Bernard C. ^{[3
]}

机构：

[1] Univ Coll Cork, Dept Microelect Engn, Cork, Ireland

[2] Tyndall Natl Inst, Cork, Ireland

[3] Univ Calif Davis, Dept Elect & Comp Engn, Davis, CA 95616 USA

来源：

IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS I-REGULAR PAPERS | 2010年 / 57卷 / 08期

基金：

爱尔兰科学基金会;

关键词：

Digital-to-analog converters; fractional-N frequency synthesizer; digital delta-sigma modulator (DDSM); NOISE;

D O I：

10.1109/TCSI.2009.2039257

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

This paper presents a mathematical analysis of the power spectral density of the output of a nonlinear block driven by a digital delta-sigma modulator. The nonlinearity is a memoryless third-order polynomial with real coefficients. The analysis yields expressions that predict the noise floor caused by the nonlinearity when the input is constant.

引用

页码：1905 / 1913

页数：9

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