Title
A wideband CMOS Cascaded Variable gain amplifier using unequally Distributed gain Control for DVB-S.2 receiver.
Abstract
A fully integrated three stage cascaded radio frequency variable gain amplifier (RFVGA) linearly controlled by exponential current generation circuit is presented. The gain control is unequally distributed in each stage for noise figure (NF) and linearity performance. The dB-linear gain control is realized using pseudo exponential current generated by CMOS current summing circuit with a voltage to current converter. The RFVGA has over 50 dB dynamic range. Gain changes from -38.5 to 16.8 dB according to control voltage that varies from 0.5 to 1.8 V. It operates at 0.95-2.15 GHz. This design is implemented in 0.18 mu m CMOS technology.
Year
DOI
Venue
2013
10.1142/S0218126613400082
JOURNAL OF CIRCUITS SYSTEMS AND COMPUTERS
Keywords
Field
DocType
CMOS,variable gain amplifier (VGA),gain control,dB-linear,triple-well,DVB-S.2.
Variable-gain amplifier,Wideband,Fully differential amplifier,Open-loop gain,Computer science,Control theory,Linearity,Noise figure,Electronic engineering,CMOS,Automatic gain control
Journal
Volume
Issue
ISSN
22
SP9
0218-1266
Citations 
PageRank 
References 
1
0.43
2
Authors
8
Name
Order
Citations
PageRank
Hyeonseok Hwang152.13
Hoon Ki Kim2262.99
Chan-Hui Jeong3254.48
Chan-Keun Kwon442.57
Sanggeun Jeon5256.95
Soo-Won Kim611629.86
Yoosam Na761.42
Hyunhwan Yoo820.82