The Creonic Fast Fourier Transform IP Core implements the Decimation in Frequency - Fast Fourier Transform based on the Cooley-Tukey algorithm. The FFT/IFFT core expects complex samples as input and provides transformed complex samples as output. It performs the transform using log₂ (transform length) stages in pipeline.
- Supports forward and inverse complex FFT
- Supports transform length (N) from 23 to 2¹⁶
- Supports scaled or unscaled IFFT output
- Implemented as pipelined streaming IO architecture
- Multi-Carrier Transmitter and Receiver Systems
- Spectrum Analysis
- Signal Filtering
- Data Compression
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- Run-time configuration of the transform mode (Forward or Inverse FFT) and transform length
- Continuously stream input and output data. The core starts processing immediately after receiving the first sample and does not wait until it receives the entire frame
- Twiddle factors can be stored in ECC ROMs
- Low-power and low-complexity design
- AXI4-Stream handshaking interfaces for seamless integration
- Works with the Creonic DVB-S2X Multi-Carrier Demodulator and Creonic DVB-RCS2 Multi-Carrier Receiver
- Available for ASIC and FPGAs
