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Published August 2010 | Version Published
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Prediction of the Spectrum of a Digital Delta–Sigma Modulator Followed by a Polynomial Nonlinearity

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Abstract

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.

Additional Information

© 2010 IEEE. Manuscript received April 21, 2009; revised August 05, 2009 and October 19, 2009; accepted November 25, 2009. Date of publication February 22, 2010; date of current version August 11, 2010. This work was supported in part by the Science Foundation Ireland under Grant 02/IN.1/I45 and Grant 08/IN1/I854, and in part by the University College Cork–University of California Scholarship Programme. This paper was recommended by Associate Editor G. Manganaro. The authors would like to thank the reviewers and the Associate Editor for their constructive feedback.

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Identifiers

Eprint ID
20636
Resolver ID
CaltechAUTHORS:20101102-093650003

Funding

Science Foundation Ireland
02/IN.1/I45
Science Foundation Ireland
08/IN1/I854
University College Cork-University of California Scholarship

Dates

Created
2010-11-02
Created from EPrint's datestamp field
Updated
2021-11-09
Created from EPrint's last_modified field

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Other Numbering System Identifier
11464075