Fpga Based Implementation of 16-bit Multiplier- Accumulator Using Radix2 Modified Booth Algorithm and Spst Adder Using Verilog

In this paper, we proposed a new architecture of multiplier-and-accumulator (MAC) for high-speed arithmetic and low power. Multiplication occurs frequently in finite impulse response filters, fast Fourier transforms, discrete cosine transforms, convolution, and other important DSP and multimedia kernels. The objective of a good multiplier and accumulator (MAC) is to provide a physically compact, good speed and low power consuming chip. To save significant power consumption of a VLSI design, it is a good direction to reduce its dynamic power that is the major part of total power dissipation. In this paper, we propose a high speed MAC adopting the new SPST implementing approach. This multiplier and accumulator is designed by equipping the Spurious Power Suppression Technique (SPST) on a modified Booth encoder which is controlled by a detection unit using an AND gate. The modified booth encoder will reduce the number of partial products generated by a factor of 2. The SPST adder will avoid the unwanted addition and thus minimize the switching power dissipation.