A 30-mW 10.7-MHz pseudo-N-path sigma-delta band-pass modulator

Author

Francesconi, F. ; Caiulo, G. ; Liberali, V. ; Maloberti, F.

Author_Institution

Dipartimento di Elettronica, Pavia Univ., Italy

fYear

1996

fDate

13-15 June 1996

Firstpage

60

Lastpage

61

Abstract

This paper presents a sigma-delta modulator designed to convert band-pass signals for digital radio and cellular telephony. The proposed architecture employs only one operational amplifier, thus allowing a reduction of power consumption. A prototype implemented in a 1.2-/spl mu/m double-poly double-metal BiCMOS technology exhibits an SNR equivalent to 8 bits of resolution over a 200-kHz band, and dissipates only 30 mW with a 5-V supply.

Keywords

BiCMOS integrated circuits; cellular radio; digital radio; mixed analogue-digital integrated circuits; modulators; sigma-delta modulation; 1.2 micron; 10.7 MHz; 200 kHz; 30 mW; 5 V; band-pass signals conversion; cellular telephony; digital radio; double-poly double-metal BiCMOS technology; opamp; operational amplifier; power consumption reduction; pseudo-N-path configuration; sigma-delta band-pass modulator; BiCMOS integrated circuits; Delta-sigma modulation; Digital communication; Digital modulation; Energy consumption; Operational amplifiers; Power amplifiers; Prototypes; Signal design; Telephony;

fLanguage

English

Publisher

ieee

Conference_Titel

VLSI Circuits, 1996. Digest of Technical Papers., 1996 Symposium on

Conference_Location

Honolulu, HI, USA

Print_ISBN

0-7803-3339-X

Type

conf

DOI

10.1109/VLSIC.1996.507716

Filename

507716