IIR filtering on sigma-delta modulated signals
- 14 February 1991
- journal article
- Published by Institution of Engineering and Technology (IET) in Electronics Letters
- Vol. 27 (4) , 307-308
- https://doi.org/10.1049/el:19910194
Abstract
A design methodology for realising IIR filters on sigma-delta modulated signals is proposed. It is shown that only 3N adders together with minor logic are required to implement an Nth order filter. This type of filtering should prove useful in VLSI technologies where interfaces to analogue signals are required.Keywords
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