A CMOS IF transceiver with 90 dB linear control VGA for IMT-2000 application

Author

Yonk-Sik Youn ; Jang-Hong Choi ; Min-Hyung Cho ; Seon-Ho Han ; Mun-Yang Park

Author_Institution

Electron. & Telecommun. Res. Inst., Daejeon, South Korea

fYear

2003

fDate

12-14 June 2003

Firstpage

131

Lastpage

134

Abstract

A prototype IF transceiver has been integrated in 0.35 /spl mu/m CMOS technology. The chip includes VGAs and mixers for IMT-2000. The VGAs are controlled continuously in linear dB by using a proposed quasi-exponential gain control method. Measurements show that both VGAs have over 90 dB dynamic range and 9.5 dB NF in receiver. The -3 dB frequencies of the receiver and transmitter are 250 MHz and 430 MHz, respectively. Thus, the transceiver can adapt to PCS as well as IMT-2000 for potential dual-band application. With a single 3.0 V power supply, the VGAs and mixers consume 16 mA and 6 mA, respectively.

Keywords

CMOS integrated circuits; analogue-digital conversion; demodulators; differential amplifiers; digital-analogue conversion; gain control; low-pass filters; microcomputers; mixers (circuits); mobile handsets; transceivers; -3 dB; 0.35 micron; 16 mA; 250 MHz; 3.0 V; 430 MHz; 6 mA; 9.5 dB; 90 dB; CMOS IF transceiver technology; IMT-2000 application; linear control variable gain amplifier chips; potential dual-band application; quasiexponential gain control method; receiver frequency; transmitter frequency; CMOS technology; Dynamic range; Frequency; Gain control; Noise measurement; Personal communication networks; Prototypes; Semiconductor device measurement; Transceivers; Transmitters;

fLanguage

English

Publisher

ieee

Conference_Titel

VLSI Circuits, 2003. Digest of Technical Papers. 2003 Symposium on

Conference_Location

Kyoto, Japan

Print_ISBN

4-89114-034-8

Type

conf

DOI

10.1109/VLSIC.2003.1221181

Filename

1221181