A novel implementation of dithered digital delta-sigma modulators via bus-splitting

Authors

Brian Fitzgibbon, Tyndall National Institute
Michael Peter Kennedy, Tyndall National InstituteFollow
Franco Maloberti, Università degli Studi di Pavia

Abstract

This paper presents a design methodology for dithered bus-splitting Multi stAge noise SHaping (MASH) digital delta-sigma modulators (DDSMs). Rules for selecting the appropriate wordlengths of the constituent DDSMs are derived which ensure that the spectral performance of the bus-splitting architecture is comparable to that of the conventional design but with less hardware. Behavioral simulations are presented which confirm the theoretical predictions. © 2011 IEEE.

Publication Title

Proceedings - IEEE International Symposium on Circuits and Systems

Recommended Citation

Fitzgibbon, B., Kennedy, M., & Maloberti, F. (2011). A novel implementation of dithered digital delta-sigma modulators via bus-splitting. Proceedings - IEEE International Symposium on Circuits and Systems, 1363-1366. https://doi.org/10.1109/ISCAS.2011.5937825