Delta-Sigma Modulators and Decimation Filters
Delta-Sigma Modulators and Decimation Filters
Delta-Sigma Modulators and Decimation Filters
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CIC <strong>Decimation</strong> Filter<br />
(contd.)<br />
<br />
The CIC decimator consists of a cascade of integrators followed by<br />
a resampling switch <strong>and</strong> a cascade of differentiators<br />
The integrator section consists of N ideal integrator stages operating at<br />
the high sampling rate fs<br />
The comb section operates at a slower rate fs/R, R is the integer rate<br />
change factor<br />
The differential delay M in the differentiator chain may be defined<br />
by the user to be either 1 or 2
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