Radix-2 FFT

General Description

Comcores Fast Fourier Transform (FFT) IP core is an implementation of a Cooley-Tukey FFT algorithm, a computationally efficient method for calculating the Discrete Fourier Transform (DFT). The FFT uses a Radix-2, Decimation-In-Time (DIT) and in-place architecture which improves overall efficiency of the computation in terms of speed while keeping the digital footprint at a minimum. The core comes with a large variety of run-time configurations such as FFT/IFFT mode, transform size, ordering of outputs and Cyclic Prefix insertion which makes it suitable for a large variety of applications such as OFDM systems and real-time signal analysis. The FFT IP also comes as a dual core version where the total execution time of the algorithm is halved at the cost of a slightly larger digital footprint. For any application the FFT IP core delivers on your need for speed and performance whether the target is FPGA or ASIC.

Key Features



Delivering Performance
  • Supports both FFT and IFFT transformation
  • Uses a Cooley-Tukey decimation in time algorithm with radix-2 sizes and in-place computations
  • Run-time configurable transform lengths of size 8 – 65535
  • Run-time configurable scaling of data at several points during transformation
  • Fixed-point arithmetic
  • Complex input and output
  • Normal or natural order on outputs
  • Supports Cyclic Prefix insertion
  • Option for a dual core version for ultra low transformation execution time
Easy to Use
  • Simple configuration signals for run-time configurations and enabling/disabling of features
  • Simple test bench is included
Silicon Agnostic
  • Designed in VHDL and targeting any RTL implementation like ASICs, ASSPs and FPGAs.
  Baseband Processing
  • OFDM based systems
  • LTE and NR compatible
  • 802.11 WiFi PHY
  • As a part of an xRAN based Radio Unit
Signal analysis
  • Spectrum analysis
  • Signal power measurements

Request datasheet:  sales@comcores.com


The IP core comes deeply verified and with an extensive documentation that, among others, includes Product Brief, User Manual, Test Environment and test reports.

The core will by default come in an encrypted format. Source code option is available.

Pricing and Further Information

Please contact sales for further information about the IP core.

Request quote for FFT IP Core:  sales@comcores.com