Design and Implementation of FIR Filter using Efficient MAC

Abstract

The Design And Realization Of Efficient Multiplication And Accumulation Unit (MAC) Of A Digital FIR Filter Has Substantial Influence In Designing A Well-Organized Finite Impulse Response Filter As It Is Used To Compute The Filter Response. Area Efficiency In An FIR Filter Can Be Achieved By Reducing The Gate Count Of Either Multiplier Unit Or An Adder Unit Or Both The Units Since They Are The Basic Building Blocks Of FIR Filter. This Paper Presents A VLSI Architecture For A 4-Tap FIR Filter Which Is Designed By Using Efficient Adder And A Multiplier Employing Logic Optimization Technique. Area For MAC Based FIR Filter Employing Vedic-CSLALOT Is Improved By 11.959% When Compared To Hierarchy-SQRT-CSLA. Total Power For MAC Based FIR Filter Employing Vedic-CSLALOT Is Improved By 13.15% As Against To Hierarchy-SQRT-CSLA.