Fast Fourier Transform - FFT IP Core

An Fast Fourier Transform IP Core (FFT IP Core) allows the implementation of very long transforms on an FPGA using external RAM. The Fast Fourier Transform Algorithm from Mistral is designed for Run time Programmability and Optimal Resource Utilization.

Digital Down Converter, Fast Fourier Transform Algorithm, FFT IP Core, Nand Flash Controller IP Core

Overview

Fast Fourier Transform Algorithm

What is Fast Fourier Transform Algorithm? A Fast Fourier Transform (FFT) is an algorithm that helps calculate Discrete Fourier Transform (DFT) in Engineering and Mathematics. It is one of the most vital algorithms in signal processing and data analysis and is widely deployed in sound waves and image processing applications.

Fast Fourier Transform Algorithm is widely used in engineering, science, and mathematics applications, and is included among the top 10 Algorithms of the 20th Century by the IEEE magazine Computing in Science & Engineering. It is a mathematical method for transforming a function of time into a function of frequency. Additionally, the Fast Fourier Transform Algorithm efficiently calculates the Discrete Fourier Transform (DFT) of a given sequence.

Discrete Fourier Transform (DFT) IP Core is a powerful tool in the design and analysis of digital signal processing systems, due to which, Fast Fourier Transform is commonly used in a wide range of DSP applications. The Fast Fourier Transform FPGA (FFT IP Core) computes the Discrete Fourier Transform, or its inverse (IDFT). Further, Fast Fourier Transform FPGA converts a signal from its original domain (time or space) to a representation in the frequency domain or vice versa. It is very useful for the analysis of time-dependent phenomena.

Fast Fourier Transform IP Core

Fast Fourier Transform Algorithm IP Core from Mistral uses the Divide-and-Conquer approach for Fast Fourier Transform FPGA computation. This approach expresses the Fast Fourier Transform Algorithm of length N as a product of 2 integers, L x M. The L and M point FFTs are computed using a pipelined Fast Fourier Transform block. Higher transform lengths in the Fast Fourier Transform IP Core are supported and depend on factory configuration.

Fast Fourier Transform FPGA IP Core (FFT IP Core)

The FFT IP Core Algorithm from Mistral allows the implementation of very long transforms on an FPGA using external RAM. The Fast Fourier Transform FPGA is designed for Run time Programmability and Optimal Resource Utilization. Mistral’s Fast Fourier Transform Algorithm minimizes latency and maximizes throughput in real-time systems.

Mistral’s Fast Fourier Transform FPGA Algorithm supports run-time programmable transform lengths from 256 to 1M (powers-of-2) points. The maximum transform length is limited by the memory available.

The various blocks of Fast Fourier Transform Algorithm are described below:

FFT IP Core Controller: This block in Fast Fourier Transform IP Core (Fast Fourier Transform Algorithm) controls the sequence of operations to be carried out for transform computation.

Complex Multiplier: Multiplies twiddles with data from memory and provides input to pipeline Fast Fourier Transform Algorithm.

FFT IP Core Pipeline FFT: A Radix-2 pipeline FFT-IP Core from Xilinx is used for computation of L and M point FFTs.

Re-order blocks: These blocks re-order the inputs and outputs of the FFT.

Arbiter: The FFT arbitrates memory read and write requests from various blocks.

The Fast Fourier Transform IP Core (FFT IP Core) from Mistral is tested on Virtex-6 FPGA from Xilinx and is designed for Run-time Programmability and Optimal Resource Utilization. The Fast Fourier Transform FPGA IP core is optimized to use digital signal processing (DSP) blocks and VHDL and Verilog HDL simulators. Fast Fourier Transform Algorithm is an efficient solution for advanced signal processing and data analysis in cumpute intensive applications.

Benefits of Fast Fourier Transform Algorithm

Mistral’s Fast Fourier Transform IP Core offers several benefits in signal processing applications. The Fast Fourier Transform Algorithm provides efficient and high-speed computation of Fourier transforms, enabling real-time processing of complex signal data. The FFT IP Core can handle large data sets and deliver fast and accurate results. The Fast Fourier Transform FPGA is customizable, allowing users to tailor its configuration to match specific application requirements. This flexibility enables optimization of performance, precision, and resource utilization. By utilizing Mistral’s pre-designed and verified FFT IP Core, developers can significantly reduce the time and effort required for developing complex Fourier transform algorithms from scratch. This accelerates the overall development process and speeds up time-to-market.

The Fast Fourier Transform Algorithm is designed to optimize resource utilization, making efficient use of available hardware resources. This ensures maximum performance with minimal hardware footprint, enabling cost-effective implementations on FPGA or ASIC platforms. Mistral’s FFT IP Core is designed for easy integration into various FPGA or ASIC designs. It provides straightforward interfaces and documentation, simplifying the integration process and reducing development complexity.

To know more about Mistral’s Fast Fourier Transform FPGA IP Core and Fast Fourier Transform Algorithm, please contact sales or submit your query here.

TECHNICAL SPECIFICATIONS

  • Fast Fourier Transform Algorithm size, N = 2m, m = 8 to 20 (default). Can be customized
  • Forward or inverse complex transform with run time configurability
  • Run time computation of twiddle factors
  • Single precision floating point arithmetic
  • In-order input and output
  • Supports data rate of 200MS/s* (complex data)