A fully-integrated, digital, direct sequence, spread spectrum modem ASIC

Author

Magill, D.T.

Author_Institution

Stanford Telecom, Santa Clara, CA, USA

fYear

1992

Firstpage

42

Lastpage

46

Abstract

Spread spectrum modulation has become very popular due to the FCC allocations in three ISM bands, e.g. 902-928 MHz. The paper describes a single ASIC which digitally implements the down conversion, matched filter, DPSK detection, and AFC functions of a demodulator as well as the differential encoding, PN spreading, and PSK modulation functions of a transmitter. This ASIC performs virtually all the functions required by a direct sequence spread spectrum modem

Keywords

application specific integrated circuits; digital filters; digital radio systems; frequency convertors; matched filters; modems; phase shift keying; radiofrequency filters; spread spectrum communication; transceivers; 902 to 928 MHz; AFC functions; ASIC; DPSK detection; DS-SS modem; FCC allocations; PN spreading; PSK modulation functions; UHF; automatic frequency control; demodulator; differential encoding; differential phase shift keying; down conversion; fully-integrated digital direct sequence spread spectrum modem; matched filter; pseudonoise; spread spectrum modulation; transmitter; Application specific integrated circuits; Automatic frequency control; Demodulation; Differential quadrature phase shift keying; Encoding; FCC; Matched filters; Modems; Phase shift keying; Spread spectrum communication;

fLanguage

English

Publisher

ieee

Conference_Titel

Personal, Indoor and Mobile Radio Communications, 1992. Proceedings, PIMRC '92., Third IEEE International Symposium on

Conference_Location

Boston, MA

Print_ISBN

0-7803-0841-7

Type

conf

DOI

10.1109/PIMRC.1992.279966

Filename

279966