A 2G/3G Cellular Analog Baseband Based on a Filtering ADC

Author

Sosio, Marco ; Liscidini, Antonio ; Castello, Rinaldo

Author_Institution

Univ. degli Studi di Pavia, Pavia, Italy

Volume

59

Issue

4

fYear

2012

fDate

4/1/2012 12:00:00 AM

Firstpage

214

Lastpage

218

Abstract

A current-driven low-pass filter embedded in a sigma-delta analog-to-digital converter is presented. The implementation of a class-B feedback digital-to-analog converter, together with in-band noise reduction and passive filtering, gives the possibility to handle challenging wireless communication scenarios with low power consumption. The architecture is a suitable candidate to implement the entire baseband analog section of a Global System for Mobile Communications-Universal Mobile Telecommunications System (GSM-UMTS) reconfigurable receiver.

Keywords

3G mobile communication; cellular radio; low-pass filters; passive filters; radio receivers; sigma-delta modulation; software radio; 2G cellular analog baseband; 3G cellular analog baseband; GSM-UMTS; Global System for Mobile Communications; Universal Mobile Telecommunications System; class-B feedback digital-analog converter; current driven low pass filter; filtering ADC; in-band noise reduction; passive filtering; reconfigurable receiver; sigma-delta analog-digital converter; Computer architecture; Gain; Impedance; Mixers; Noise; Receivers; Sensitivity; Baseband (BB); dynamic range (DR); low-pass filters; out-of-band blockers; receivers; software-defined radio (SDR);

fLanguage

English

Journal_Title

Circuits and Systems II: Express Briefs, IEEE Transactions on

Publisher

ieee

ISSN

1549-7747

Type

jour

DOI

10.1109/TCSII.2012.2188458

Filename

6165342