Title :
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
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;
Conference_Titel :
Radio Frequency Integrated Circuits Symposium, 2009. RFIC 2009. IEEE
Conference_Location :
Boston, MA
Print_ISBN :
978-1-4244-3377-3
Electronic_ISBN :
1529-2517
DOI :
10.1109/RFIC.2009.5135594
