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Atomic Fast Fourier Transform (FFT)

High Performance FFTs

Product Brief (PDF)

Athena delivers high-performance fast Fourier transform (FFT) cores, ready to use for your SoC application. When your advanced communications or signal processing SoC requires dedicated FFT performance, turn to Athena’s Atomic FFT family. Atomic FFT blocks enable your application to realize the power, performance, and area advantages of Athena’s arithmetic technology in your FFT intensive application, and benefit from Athena’s experience delivering extreme FFT performance.

All Atomic FFT cores can perform both forward and inverse transforms with run-time programmable scaling and transform lengths and have flow control. Data precision, maximum transform length, and performance are user-defined implementation parameters. Atomic FFT cores are available with standard radix 2/4 lengths, and optional multi-radix (e.g., 2, 3, 4, 5) lengths. Optional features such as hardwired or run-time programmable windowing are also available.

Features

  • A family of solutions to meet your requirements
  • User-defined maximum transform length
  • Run-time programmable transform length
  • User-defined input and output precision
  • Multiple radices (e.g., 2, 3, 4, 5) available
  • Run-time programmable scaling
  • I/O flow control
  • Microprocessor bus interfaces available
  • Easy SoC integration

Benefits

  • Portable to multiple implementation technologies, including FPGA, structured ASIC, and ASIC
  • Multiple products allow the best FFT to be matched to your application
  • Offload/replace DSP microprocessors

Applications

  • Communications
  • OFDM modems
  • LTE, WiMax, UWB
  • Digital excision filtering
  • Antenna beamsteering
  • Instrumentation
  • Signal analysis
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