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FLOATING POINT FFT IP CORE FOR FPGA ACHIEVES GREATER COMPUTING DENSITIES
Dateline: May 24, 2005 ... Reno, NV
Contact Name: Pierrick Vulliez
Contact Phone: 775-830-2059
Contact Fax: 775-624-2501
E-mail: info@4dsp.com
Web Address: http://www.4dsp.com/fft.htm
RENO, NV - May 24, 2005 - 4DSP Inc. of Reno, Nevada, released this
month a new Floating Point Fast Fourier Transform core that is IEEE-754
compliant. This IP core was designed for use in the newer generation
of high performance programmable devices, now available from FPGA
vendors like Xilinx and Altera. The FFT core performs and transforms on
complex data ranging from 256 points to 1M points with external memory,
if necessary, such as QDR SRAM, closely coupled to the internal logic
of the FPGA. Based on a radix-32 architecture, it allows users to
change the transform length "on the fly", without having to reconfigure
the programmable device. The flexibility engineered into its design
makes this FFT core an ideal component for systems that may change
mission rapidly in their application design or for systems whose
algorithms are complex in nature or may require flexibility in mission
assignment.
"We did not expect to reach this level of performance in an FPGA. This
has typically been done in an ASIC, which is increasingly more
expensive to develop and requires a specific board architecture. To
produce a flexible and lower cost device, that is capable of
performing a 1024 points Floating Point FFT in 11.4 microseconds using
a single core, is far beyond our original expectations," says Pierrick
Vulliez, 4DSP's Chief Technology Officer. "For example, when applied
to Video 2D transforms with 1024 x 1024 images, a single core can
process 42 frames per second."
New advancements in FPGA gate densities, combined with efficient,
tightly written VHDL cores, allow multiple cores to co-exist inside a
single FPGA device. In new chips like the Altera Stratix-II and Xilinx
Virtex-4 FPGAs, four cores can be implemented in parallel, offering a
double-digit acceleration factor compared to currently available
floating-point DSP devices. For further information send an email to
info@4dsp.com or visit 4DPS's website at http://www.4dsp.com/fft.htm
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