4. Circuit design

In this section, we explain the design of 16 points FFT circuit which applies Radix-2 architecture by using XILINX block set. To design FFT circuit, this chapter provides follow step

1)　Design of FFT circuit for parallel input

 1-1) FFT circuit : N=4

 1-1) FFT circuit : N=8

2)　Design of FFT circuit for serial input

 2-1) FFT circuit : N=4　 　　　

 2-2) FFT circuit : N=8 　　　

 2-3) FFT circuit : N=16