Journal of Research in Electrical Circuits and Systems ISSN: 3139-2059 (Online)

Authors: T. Selvam, Shiv Raju

Abstract: System developers, especially those who are new to digital signal processors (DSPs), are sometimes uncertain whether they need to use fixed- or floating-
point DSPs for their systems. Both fixed- and floating-point DSPs are designed to perform the high speed computations that underlie real-time signal processing. Both feature system-on-a-chip (SOC) integration with on- chip memory and a variety of high-speed peripherals to ensure fast throughput and design flexibility. Tradeoffs of cost and ease of use often heavily influenced the fixed- or floating-point decision in the past. Today, though, selecting either type of DSP depends mainly on whether the added computational capabilities of the floating-point format are required by the
application. In this paper we will discuss the comparison between Fixed- and Floating-Point DSPs in their respective numeric representations of data.

Keywords: Digital Signal Processing, Fixed Point, Floating Point, Fixed Point Vs Floating Point.