DocumentCode
1404235
Title
Variable gain control circuit for linear applications
Author
Maula, K.L.I.
Author_Institution
Nokia Res. Center, Espoo, Finland
Volume
36
Issue
20
fYear
2000
fDate
9/28/2000 12:00:00 AM
Firstpage
1682
Lastpage
1683
Abstract
A new, simple gain control circuit is introduced for linear applications. It utilises a differential stage for the gain control function and a predistortion circuit to maintain linearity. The circuit provides a wide dynamic range and low intermodulation levels. Suitable applications are WCDMA cellular phone circuits such as variable-gain amplifiers or driver stages with gain control for power amplifiers
Keywords
bipolar analogue integrated circuits; cellular radio; code division multiple access; gain control; intermodulation; telephone sets; WCDMA cellular phone circuits; differential stage; driver stages; linear applications; linearity; low intermodulation levels; power amplifiers; predistortion circuit; variable gain control circuit; variable-gain amplifiers; wide dynamic range;
fLanguage
English
Journal_Title
Electronics Letters
Publisher
iet
ISSN
0013-5194
Type
jour
DOI
10.1049/el:20001215
Filename
881999
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