Title :
A CMOS transmit/receive IF chip-set for WCDMA mobiles
Author :
Dasgupta, U. ; Wooi Gan Yeoh ; Chun Geik Tan ; Sheng Jau Wong ; Mori, H. ; Singh, R. ; Itoh, M.
Author_Institution :
Inst. of Microelectron., Singapore
Abstract :
A transmit/receive IF chip-set integrating modulator/demodulator and AGCs for WCDMA mobiles in 0.35 /spl mu/m CMOS process is presented. Circuit innovations that achieve linear-in-dB gain control for wide-dynamic range AGCs with compensation against temperature and process variations to meet stringent specifications overcoming the limitations of CMOS technology are reported.
Keywords :
CMOS analogue integrated circuits; automatic gain control; cellular radio; code division multiple access; intermediate-frequency amplifiers; modems; transceivers; 3G wireless receivers; AGC; CMOS process; Gilbert cell topology; WCDMA mobiles; WCDMA transceivers; linearity error; modulator/demodulator; quadrature modulator; transmit/receive IF chipset; wide-dynamic range; CMOS process; CMOS technology; Coupling circuits; Demodulation; Frequency; Gain control; Multiaccess communication; Radiofrequency amplifiers; Radiofrequency integrated circuits; Voltage;
Conference_Titel :
Radio Frequency Integrated Circuits (RFIC) Symposium, 2002 IEEE
Conference_Location :
Seattle, WA, USA
Print_ISBN :
0-7803-7246-8
DOI :
10.1109/RFIC.2002.1012030
