DISCO - A toolbox for the discrete-time simulation of continuous-time Sigma-Delta modulators using MATLAB™

Author

Buhmann, Alexander ; Keller, Matthias ; Maurer, Michael ; Ortmanns, Maurits ; Manoli, Yiannos

Author_Institution

Univ. of Freiburg, Freiburg

fYear

2007

fDate

5-8 Aug. 2007

Firstpage

1082

Lastpage

1085

Abstract

This paper will present a MATLAB^TM toolbox for the discrete-time (DT) simulation of continuous-time (CT) sigma-delta modulators. Via the application of lifting, correction values for the state vector are calculated and used to correct the state vector of the DT simulation. Furthermore, several typical non-idealities of CT modulators, such as real opamp behavior, excess loop delay, and even jitter, are simulated with a tremendously speed up being for some simulation tasks up to a factor of 330. The introduced simulation algorithm is embedded in a CT sigma- delta design environment, which has a graphical user interface for a direct user interaction.

Keywords

continuous time systems; discrete event simulation; electronic engineering computing; graphical user interfaces; jitter; mathematics computing; sigma-delta modulation; MATLAB; continuous-time sigma-delta modulator; discrete-time simulation; graphical user interface; jitter; loop delay; real opamp behavior; state vector; user interaction; Algorithm design and analysis; Circuit simulation; Computational modeling; Computer languages; Computer simulation; Delay; Delta-sigma modulation; Microelectronics; Nonlinear filters; Sampling methods;

fLanguage

English

Publisher

ieee

Conference_Titel

Circuits and Systems, 2007. MWSCAS 2007. 50th Midwest Symposium on

Conference_Location

Montreal, Que.

ISSN

1548-3746

Print_ISBN

978-1-4244-1175-7

Electronic_ISBN

1548-3746

Type

conf

DOI

10.1109/MWSCAS.2007.4488747

Filename

4488747