A dual-mode synchronous/asynchronous CORDIC processor

Author

Grass, Eckhard ; Sarker, Bodhisatya ; Maharatna, Koushik

Author_Institution

IHP, Frankfurt, Germany

fYear

2002

Firstpage

76

Lastpage

83

Abstract

For application in a software defined radio, a CORDIC processor has been developed that can operate both in synchronous and asynchronous mode. Each mode of operation has advantages and drawbacks. Depending on the actual application, an optimal trade-off can be achieved by selecting the mode of operation that fits best with system demands. We believe that for a system developer this additional degree of freedom significantly increases the application space. The design has been implemented on a 0.25 μm SiGe:C BiCMOS process. Simulation results using post-layout extracted parameters indicate that the design is competitive both with purely synchronous and purely asynchronous implementations.

Keywords

BiCMOS digital integrated circuits; Ge-Si alloys; asynchronous circuits; carbon; digital signal processing chips; pipeline arithmetic; semiconductor materials; 0.25 micron; CORDIC processor; SiGe:C BiCMOS process; asynchronous mode; dual-mode synchronous/asynchronous processor; numeric controlled oscillator; software defined radio; synchronous mode; Application software; Baseband; Broadband communication; Communication standards; Crosstalk; Hardware; Modems; OFDM; Power dissipation; Software radio;

fLanguage

English

Publisher

ieee

Conference_Titel

Asynchronous Circuits and Systems, 2002. Proceedings. Eighth International Symposium on

ISSN

1522-8681

Print_ISBN

0-7695-1540-1

Type

conf

DOI

10.1109/ASYNC.2002.1000298

Filename

1000298