The Designer's Guide Community Forum

The Designer's Guide Community Forum
https://designers-guide.org/forum/YaBB.pl
Design >> Mixed-Signal Design >> Rough size estimation of decimator for delta-sigma
https://designers-guide.org/forum/YaBB.pl?num=1149155165

Message started by shpongle on Jun 1^st, 2006, 2:46am

Title: Rough size estimation of decimator for delta-sigma
Post by shpongle on Jun 1^st, 2006, 2:46am

Hi,

I need to have a rough estimation of the equivalent number of gates required to design a decimator for a delta-sigma converter.
Is there any "good practice rule" which gives an estimation of the number of equivalent gates based on the filter order, word length, ... ? or do I have to size the decimator i.e. partition into 2-3 decimation stages, specify each filter, write some verilog/vhdl and ask an EDA synthesizer tool for the estimation of gates using NAND logic ?

Any hints, information is welcome and greatly appreciated