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IP Core 제품 > General > General purpose FFT core |
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Universal QAM PSK modulator |
| Product code: CMS0001 |
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The FFT Core implements a FFT and inverse FFT suitable for use in Modulators
or Demodulators for OFDM (COFDM) systems such as DVB-T/H, 802.11a and
802.16a.
It uses a fast and efficient radix-4 engine to compute the FFT. All
logic is fully pipelined to clock at 4x - 7x sample rate, depending on FFT
size. |
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Block diagram
Click on image for further information
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Downloads
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me when these downloads are updated | |
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Features
Synthesis control for any FFT size = 2n.
Synthesis control supports multiple sizes with run-time size selection.
Synthesis control of signal precision (variable width).
Performs forward and inverse FFT.
In FFT (foreward) mode, inputs are gathered in time-order at sample rate.
Outputs
are produced in a burst at clock rate (4x - 7x sample rate).
In IFFT (inverse) mode, inputs are gathered in frequency-order at clock
rate.
Outputs are produced at sample rate.
Outputs are produced in sorted or scrambled order.
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