Different Multipliers & its performance analysis in VLSI using VHDL
Sonal Prajapati
Array multiplier, parallel multiplier, propagation delay, VHDL, LUT, DSP block, utilization and twiddle f-actors
Multiplier modules are common to many DSP applications. The fastest types of multipliers are parallel multipliers. Among these, the Array multiplier is the basic one. However, they suffer from more propagation delay. Hence, where regularity, high performance and low power are primary concerns, Booth multipliers tend to be the primary choice. Booth multipliers allow the operation on signed operands in 2's-complement which are derived from array multipliers where each bit in a partial product line an encoding scheme is used to determine whether the bit is positive, negative or zero. The Modified Booth algorithm achieves a major performance improvement through radix-4 encoding. In this algorithm each partial product line operates on 2 bits at a time, thereby reducing the total number of the partial products. This is particularly true for operands using 16 bits or more
Article Details
Unique Paper ID: 146264

Publication Volume & Issue: Volume 4, Issue 11

Page(s): 2028 - 2033
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