Stability analysis and system design of sigma-delta modulators

Author

Chen, Chih-Yuan ; Chang, Rong-Guey ; Hong, Jia-Hua ; Lee, Shuenn-Yuh

Author_Institution

Dept. of Comput. Sci. & Inf. Engineerin, Nat. Chung Cheng Univ., Chiayi, Taiwan

fYear

2009

fDate

14-16 Dec. 2009

Firstpage

9

Lastpage

12

Abstract

A system design with new empirical stability criteria for sigma-delta modulators is proposed. The stability criteria is a cubic function obtained by the least square method, and simulations including coefficients variation due to component mismatches of circuit implementation are included. By using the proposed methodology, several stability criteria of different targets (e.g., architectures, oversampling ratios (OSRs), and multi-bit) are found.

Keywords

circuit stability; least squares approximations; sigma-delta modulation; cubic function; least square method; oversampling ratios; sigma-delta modulators; stability analysis; system design; Analytical models; Circuit simulation; Delta-sigma modulation; Differential equations; Digital modulation; Least squares methods; Stability analysis; Stability criteria; System analysis and design; Upper bound; automatic synthesis; least square; sigma-delta modulator; stability analysis;

fLanguage

English

Publisher

ieee

Conference_Titel

Integrated Circuits, ISIC '09. Proceedings of the 2009 12th International Symposium on

Conference_Location

Singapore

Print_ISBN

978-9-8108-2468-6

Type

conf

Filename

5403969