FFT Drithmetic element built on VLSI high performance gate array
D. Bondurant, Richard Vandervoort Cox, G. Deming, D. Wick · 2005
The Fast Fourier Transform (FFT) radix-2 butterfly is implemented on a single high speed bipolar gate array. Consideration has been given to questions of algorithm performance and architectural flexibility to achieve both high speed and low noise operation. Multiple FFT AE devices may be connected to form parallel array systems with high processing rates. Four system architectures utilizing the FFT chip employ one,\log_{2}N, N/2, and(N/2)\log_{2} Narithmetic elements, respectively, for a transform of N points.