On-Chip Implementation of Cascaded Integrator Comb filters (CIC) for DSP applications

TL;DR

This paper discusses the design and simulation of Cascaded Integrator Comb (CIC) filters for decimation in ADC systems, emphasizing their low power and complexity advantages.

Contribution

It introduces a CIC filter design using Simulink for effective decimation in ADC applications, highlighting its low power and multiplier-free implementation.

Findings

CIC filters effectively reduce sampling rate in ADCs.

Simulink simulations validate the filter's performance.

CIC filters provide sufficient stop-band attenuation.

Abstract

This paper presents the design of CIC filters based on a low-pass filter for reducing the sampling rate, also known as decimation process. The targeted application for the filter is in the analog to digital conversion (ADC).The CIC is chosen because of its attractive property of both low power and complexity since it does not require multipliers. Simulink toolbox available in Matlab software is used to design and simulate the functionality of the CIC filter. This paper also shows how sample frequency is decreased by CIC filter and it can be used to give enough stop-band attenuation to prevent aliasing after decimation.