  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.
