Dedicated system-level simulation of /spl Delta//spl Sigma/ modulators

A new approach is presented for significantly speeding up system-level simulation of /spl Delta//spl Sigma/ modulators. The method is based on high-level simulation that can be combined with an acceleration algorithm and has been implemented in C. Also, the decimator has been included yielding a complete and fast simulation of the whole converter. This reduces the bottleneck seen in system-level simulation of complete systems, e.g. receiver front-ends. Different topologies are included as well as the effects of most important nonidealities. Experimental results show the effectiveness of the approach.

[1]  K. Francken,et al.  DAISY: a simulation-based high-level synthesis tool for /spl Delta//spl Sigma/ modulators , 2000, IEEE/ACM International Conference on Computer Aided Design. ICCAD - 2000. IEEE/ACM Digest of Technical Papers (Cat. No.00CH37140).

[2]  Georges Gielen,et al.  Optimum system-level design of sigma-delta modulators , 1999 .

[3]  E.J. van der Zwan,et al.  A 10.7-MHz IF-to-baseband /spl Sigma//spl Delta/ A/D conversion system for AM/FM radio receivers , 2000, IEEE Journal of Solid-State Circuits.

[4]  Andrea Baschirotto,et al.  Modeling sigma-delta modulator non-idealities in SIMULINK(R) , 1999, ISCAS'99. Proceedings of the 1999 IEEE International Symposium on Circuits and Systems VLSI (Cat. No.99CH36349).

[5]  Franco Maloberti,et al.  TOSCA: a user-friendly behavioural simulator for oversampling A/D converters , 1991, 1991., IEEE International Sympoisum on Circuits and Systems.

[6]  Georges G. E. Gielen,et al.  Efficient analysis of the stability of sigma-delta modulators using wavelets , 2000, 2000 IEEE International Symposium on Circuits and Systems. Emerging Technologies for the 21st Century. Proceedings (IEEE Cat No.00CH36353).

[7]  Michael B. Steer,et al.  Table-based simulation of delta-sigma modulators , 1990 .

[8]  Georges G. E. Gielen,et al.  DAISY: A Simulation-Based High-Level Synthesis Tool for Delta-Sigma Modulators , 2000, ICCAD.