Published Paper Details:

Cascaded Integrator Comb (CIC) decimation filters are widely employed in digital down-sampling systems due to their multiplier-less structure and hardware efficiency. However, their performance strongly depends on the filter order, which governs the trade-offs between spectral characteristics and implementation complexity. This study presents a comparative analysis of CIC decimation filters of different orders, evaluated in terms of passband ripple, stopband attenuation, power consumption, and hardware resource utilization. Simulation results indicate that higher-order CIC filters achieve improved stopband attenuation but at the cost of increased passband droop and higher power usage. Conversely, lower-order filters exhibit reduced hardware and power requirements but suffer from inferior spectral performance. The analysis highlights that optimal filter order selection is application-specific, requiring a balance between signal fidelity and implementation efficiency. The findings provide design guidelines for engineers to choose appropriate CIC filter configurations for low-power and resource-constrained wireless communication and signal processing systems with proper corrections