Delta-sigma modulator with μ-synthesis and switching loop filter based on the linear gain

Kenji Kita, Toshiya Samejima

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

A delta-sigma modulator is one of systems used for an analog-to-digital converter. It is known that high signal-to-noise ratio will be obtained by making a high-order loop filter of the delta-sigma modulator. However, when input amplitude becomes large, a problem that the system becomes unstable occurs. This paper proposes a delta-sigma modulator combining the method of switching the loop filter by the change of the linear gain with the loop filters designed through a μ-synthesis. A stable range will spread out for large input amplitude by using the method of switching the loop filter. The effectiveness of the proposed method is confirmed by computer simulations.

Original languageEnglish
Title of host publication2013 IEEE 2nd Global Conference on Consumer Electronics, GCCE 2013
Pages133-134
Number of pages2
DOIs
Publication statusPublished - Dec 1 2013
Event2013 IEEE 2nd Global Conference on Consumer Electronics, GCCE 2013 - Tokyo, Japan
Duration: Oct 1 2013Oct 4 2013

Publication series

Name2013 IEEE 2nd Global Conference on Consumer Electronics, GCCE 2013

Other

Other2013 IEEE 2nd Global Conference on Consumer Electronics, GCCE 2013
CountryJapan
CityTokyo
Period10/1/1310/4/13

All Science Journal Classification (ASJC) codes

  • Electrical and Electronic Engineering

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    Kita, K., & Samejima, T. (2013). Delta-sigma modulator with μ-synthesis and switching loop filter based on the linear gain. In 2013 IEEE 2nd Global Conference on Consumer Electronics, GCCE 2013 (pp. 133-134). [6664774] (2013 IEEE 2nd Global Conference on Consumer Electronics, GCCE 2013). https://doi.org/10.1109/GCCE.2013.6664774