Cascaded Integrator Comb (CIC) Filters - A Staircase of DSP
![Cascaded Integrator Comb (CIC) Filters - A Staircase of DSP](https://wirelesspi.com/wp-content/uploads/2022/11/figure-cic-composite-filter-spectrum-wideband.png)
In olden days, people used to have lots of kids. A famous Urdu satirist once wrote: "It has been observed that the last kid is usually the most mischievous of them all. Therefore, there should be no last kid in a family!" I remembered this line today because I have observed that starting a write-up is the most difficult task of them all. Therefore, there is no introductory paragraph in this article. Suffice it to say that this is the only topic I have found that takes you from a very small first step (just two additions) to really advanced concepts (filter design, cascades and register growth) in the field of DSP, and hence the staircase in the title. A
![](https://www.embedded.com/wp-content/uploads/media-1042114-0504feat1fig6-lg.gif)
Understanding cascaded integrator-comb filters
![](https://cdnintech.com/media/chapter/18565/1512345123/media/image40.jpeg)
Simplifying Zero Rotations in Cascaded Integrator-Comb Decimators
![](https://d3i71xaburhd42.cloudfront.net/8001fada6b7334af6d2610934e82825e0ee25826/7-Figure9-1.png)
PDF] Understanding cascaded integrator- comb filters
![](https://in.mathworks.com/help/dsp/ref/ch_block_ref_a_to_g143.gif)
Decimate signal using cascaded integrator-comb filter - Simulink
![](https://www.embedded.com/wp-content/uploads/media-1042110-0504feat1fig2-lg.gif)
Understanding cascaded integrator-comb filters
![](https://i.stack.imgur.com/pfsuf.png)
filters - CIC Cascaded Integrator-Comb spectrum - Signal
![](https://www.embedded.com/wp-content/uploads/media-1042087-0504feat1fig1-lg.gif)
Understanding cascaded integrator-comb filters
![](https://in.mathworks.com/help/examples/dsp/win64/GSMDigitalDownConverterInSimulinkExample_01.png)
Decimate signal using cascaded integrator-comb filter - Simulink
![](https://wirelesspi.com/wp-content/uploads/2022/08/figure-quarter-sample-rate-sinusoid-480x320.png)
Cascaded Integrator Comb (CIC) Filters - A Staircase of DSP
![](https://wirelesspi.com/wp-content/uploads/2022/11/figure-cic-comb-spectrum.png)
Cascaded Integrator Comb (CIC) Filters - A Staircase of DSP
![](https://wirelesspi.com/wp-content/uploads/2022/11/figure-cic-decimation-filter-differential-delay.png)
Cascaded Integrator Comb (CIC) Filters - A Staircase of DSP
![](https://wirelesspi.com/wp-content/uploads/2022/11/figure-cic-decimation-filter-1.png)
Cascaded Integrator Comb (CIC) Filters - A Staircase of DSP