Hardware

Implementing FIR Filters and FFTs With 28-nm Variable-Precision DSP Architecture

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Executive Summary

Across a range of applications, the two most common functions implemented in FPGA-based high-performance signal processing are Finite Impulse Response (FIR) filters and fast Fourier transforms (FFTs). The FPGA's Digital Signal Processing (DSP) architecture must be optimized to allow the most efficient implementation of these structures as this directly translates into cost and power benefits to the customer. This white paper introduces the DSP architecture of the latest 28-nm Altera FPGAs and shows how this architecture enables the most efficient implementation of FIR filters and FFTs.

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