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  • FFT IP cores
    • fft_64k: overlapped 64K-point FFT/IFFT
    • fft_float: windowed floating-point FFT/IFFT
    • FFT_PIPE: pipelined FFT
    • FFT_MIXED: mixed-radix FFT
    • UltraLong FFT
    • Floating Point FFT
    • Other FFT architectures
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  • News
    • Dillon Engineering announces fft_float, a floating-point windowed FFT IP core for UltraScale+ FPGAs
    • Dillon Engineering announces 64K-point overlapped FFT IP core for UltraScale+ FPGAs

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Floating Point FFT#

IEEE-754 floating-point FFT cores that keep full dynamic range through every stage, so no fixed-point scaling analysis is needed.

Specifications#

Parameter

Value

Data format

IEEE-754 single and double precision

Datasheet status

Legacy fact sheet

Documentation#

  • Floating Point FFT fact sheet (PDF)

  • FFT/IFFT core specification (PDF)

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UltraLong FFT
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Last updated on October 29, 2026
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  • Floating Point FFT
    • Specifications
    • Documentation