A dual-band CMOS CDMA transmitter without SAW and Driver Amplifier

Author

Farazian, Mohammad ; Asuri, Bhushan ; Zhao, Yu ; Larson, Lawrence E.

Author_Institution

Center for Wireless Commun., Univ. of California San Diego, La Jolla, CA, USA

fYear

2009

fDate

7-9 June 2009

Firstpage

523

Lastpage

526

Abstract

A SAW-less dual-band I/Q transmitter without a Driver Amplifier (DA) is designed for dual-band (PCS/IMT, cellular) CDMA applications. The receive band noise is better than -159 dBc/Hz. It can provide up to +5 dBm output power and meets the ACPR and dynamic range requirements of both PCS/IMT and cellular CDMA. The measured S₂₂ is better than -10 dB for both bands and it requires no external matching components. The transmitter is implemented in a 65 nm digital CMOS technology, and is packaged using flip-chip technology. The transmitter signal path (RF portion) occupies 1.0 mm².

Keywords

CMOS digital integrated circuits; MMIC; code division multiple access; flip-chip devices; transmitters; cellular CDMA; digital CMOS technology; dual-band CMOS transmitter; dual-band I-Q transmitter; dynamic range; flip-chip technology; signal path; size 65 nm; CMOS technology; Driver circuits; Dual band; Dynamic range; Multiaccess communication; Personal communication networks; Power amplifiers; Power generation; Surface acoustic waves; Transmitters; ACPR; CDMA; Driver Amplifier (DA); Gilbert cell mixer; LOleakage; SAW filter; SAW-less transmitter; SSB mixer; gain control; switched-transconductance mixer; up-converter;

fLanguage

English

Publisher

ieee

Conference_Titel

Radio Frequency Integrated Circuits Symposium, 2009. RFIC 2009. IEEE

Conference_Location

Boston, MA

ISSN

1529-2517

Print_ISBN

978-1-4244-3377-3

Electronic_ISBN

1529-2517

Type

conf

DOI

10.1109/RFIC.2009.5135594

Filename

5135594