A SAW-less CMOS TX for EGPRS and WCDMA

Author

Hausmann, Kurt ; Ganger, Jeff ; Kirschenmann, Mark ; Norris, George B. ; Shepherd, Wayne ; Bhan, Vivek ; Schwartz, Daniel B.

Author_Institution

Fujitsu Microelectron. of America, Tempe, AZ, USA

fYear

2010

fDate

23-25 May 2010

Firstpage

25

Lastpage

28

Abstract

A 90 nm CMOS TX path architected for operation without inter-stage SAW filters is shown. The SAW elimination strategy is purely low noise design but the architecture still achieves DG.09 weighted TX current drain of 50 mA from the battery. The combination of a passive interleaved switching mixer plus digital gain control allows 2% EVM at 2 dbm and 4.2% at -78 dbm.

Keywords

code division multiple access; packet radio networks; surface acoustic wave filters; CMOS TX path; EGPRS; SAW elimination strategy; SAW filters; WCDMA; current 50 mA; digital gain control; passive interleaved switching mixer; size 90 nm; surface acoustic wave filters; Clocks; Feeds; Filters; Gain control; Impedance matching; Multiaccess communication; Pulse generation; Radio frequency; Surface acoustic waves; Voltage; CMOS Integrated Circuit; Code division multi-access; Mobile Communication; Surface acoustic wave filters; Transceiver; Transmitters;

fLanguage

English

Publisher

ieee

Conference_Titel

Radio Frequency Integrated Circuits Symposium (RFIC), 2010 IEEE

Conference_Location

Anaheim, CA

ISSN

1529-2517

Print_ISBN

978-1-4244-6240-7

Type

conf

DOI

10.1109/RFIC.2010.5477357

Filename

5477357