A spur-free MASH digital delta-sigma modulator with higher order shaped dither

Authors

Brian Fitzgibbon, University College Cork
Kieran O'Neill, University College Cork
Andrew Grannell, University College Cork
Ciarán Horgan, University College Cork
Zhipeng Ye, Australian Semiconductor Technology Company (ASTC) Pty Ltd.
Kaveh Hosseini, Tyndall National Institute
Michael Peter Kennedy, Tyndall National InstituteFollow

Abstract

This paper presents a novel design for a Digital Delta Sigma Modulator (DDSM) which produces a spur-free spectrum for all constant inputs with higher order shaped additive LSB dither.We can increase the order of noise shaping of the applied dither to that of the modulator without any spurious tones appearing in the spectrum. The result is confirmed by simulation. ©2009 IEEE.

Publication Title

ECCTD 2009 - European Conference on Circuit Theory and Design Conference Program

Recommended Citation

Fitzgibbon, B., O'Neill, K., Grannell, A., Horgan, C., Ye, Z., Hosseini, K., & Kennedy, M. (2009). A spur-free MASH digital delta-sigma modulator with higher order shaped dither. ECCTD 2009 - European Conference on Circuit Theory and Design Conference Program, 723-726. https://doi.org/10.1109/ECCTD.2009.5275074