Title :
A 9.5 mW 330 μsec 1024-point FFT processor
Author_Institution :
Dept. of Electr. Eng., Stanford Univ., CA, USA
Abstract :
This paper presents an energy-efficient, single-chip, 1024-point FFT processor. The full-custom, 460000-transistor design has been fabricated in a standard 0.7 μm (Lpoly=0.6 μm) CMOS process and is fully functional on first-pass silicon. At a supply voltage of 1.1 V, it calculates a 1024-point complex FFT in 330 μsec at a clock speed of 16 MHz while consuming 9.5 mW, resulting in an adjusted energy efficiency more than 16 times greater than the previously most-efficient known FFT processor. At 3.3 V, it operates at 173 MHz
Keywords :
CMOS digital integrated circuits; application specific integrated circuits; digital signal processing chips; fast Fourier transforms; 0.7 micron; 1.1 to 3.3 V; 1024-point FFT processor; 16 to 173 MHz; 330 mus; 9.5 mW; ASIC; CMOS process; DSP chip; energy-efficient implementation; full-custom design; single-chip FFT processor; CMOS process; Clocks; Digital signal processing; Energy consumption; Energy efficiency; Flexible printed circuits; Process design; Signal processing algorithms; Silicon; Voltage;
Conference_Titel :
Custom Integrated Circuits Conference, 1998. Proceedings of the IEEE 1998
Conference_Location :
Santa Clara, CA
Print_ISBN :
0-7803-4292-5
DOI :
10.1109/CICC.1998.694921
