Design of FIR Filter using reconfigurable MAC unit

摘要

In Digital signal processing, Filter is used almost in all devices. Filters are used to extract the useful part from the input signal and the required part of the signal is reached to the receiver. For linear characteristics devices, FIR filter is used which is nothing but a combination of multiplier and adder. In this paper FIR filter has been designed by using a reconfigurable Booth multiplier and a Carry Look Ahead Adder. Combination of Booth multiplier and Carry Look Ahead adder makes FIR filter faster. RTL synthesis has been done by using Xilinx 14.3 and simulation is done by using Modelsim 6.4a. Proposed MAC unit is efficient in terms of speed and complexity and has achieved maximum frequency as 307.977MHz. We have achieved delay for MAC unit as 3.247ns and power 0.242 watt.