VLSI Design Of Advanced Digital Filters

TL;DR

This paper discusses the VLSI implementation of Cascaded Integrator Comb (CIC) filters, emphasizing their efficiency and high-speed operation for applications like digital radios and audio processing.

Contribution

It presents a detailed VLSI design methodology for CIC filters, highlighting their advantages over traditional FIR and IIR filters in high-speed digital applications.

Findings

Efficient VLSI architecture for CIC filters

High-speed operation suitable for digital radio and audio

Reduced complexity due to multiplier-less design

Abstract

The Cascaded Integrator Comb filters (CIC) find many applications in recent electronic devices such as frequency selection functions in a digital radio or modem and any filter structure that is required to efficiently process large sample rate factor. These filters are normally located after the sigma-delta modulator and have a regular structure. These types of filters do not require multipliers and the coefficient storage unlike in the normal digital FIR and IIR filters because of all filter coefficients are unity. Hence, it can be efficiently implemented to operate at high speed. Hence, this book describes the Very Large Scale Integration (VLSI) implementation of the CIC filters that are suitable for high-performance audio applications.