Title :
Implementation of a CORDIC processor for CFFT computation in gallium arsenide technology
Author :
Sarmiento, R. ; Eshraghian, K.
Author_Institution :
Centro de Microelectron. Aplicada, Univ. de Las Palmas de Gran Canaria, Spain
fDate :
28 Feb-3 Mar 1994
Abstract :
In this paper the architecture and the implementation of a complex fast Fourier transform (CFFT) processor using 0.8 μm gallium arsenide technology is presented. The processor is based upon the CORDIC algorithm in which elementary functions use only add and shift operations instead of the more conventional multiply and add hardware. In this architecture functional primitives were designed and extensively simulated taking into account process variations and in particular up to ±3σ of threshold voltage variation. Issues pertaining to the design of a 1024 point CFFT processor with 16 bit data and operating up to 1 GHz are discussed
Keywords :
VLSI; adders; digital arithmetic; digital signal processing chips; fast Fourier transforms; field effect integrated circuits; gallium arsenide; pipeline processing; 0.8 mum; 1 GHz; CFFT computation; CORDIC algorithm; CORDIC processor; GaAs; MESFETs; add and shift operations; complex fast Fourier transform processor; digital signal processing; elementary functions; functional primitives; gallium arsenide technology; process variations; threshold voltage variation; Australia; CMOS technology; Circuits; Digital signal processing; Fast Fourier transforms; Foundries; Gallium arsenide; Hardware; Signal processing algorithms; Very large scale integration;
Conference_Titel :
European Design and Test Conference, 1994. EDAC, The European Conference on Design Automation. ETC European Test Conference. EUROASIC, The European Event in ASIC Design, Proceedings.
Conference_Location :
Paris
Print_ISBN :
0-8186-5410-4
DOI :
10.1109/EDTC.1994.326871
