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RF Variable-Gain Amplifiers and AGC Loops for Digital TV Receivers

Kunihiko IIZUKA, Masato KOUTANI, Takeshi MITSUNAKA, Hiroshi KAWAMURA, Shinji TOYOYAMA, Masayuki MIYAMOTO, Akira MATSUZAWA

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Summary :

RF Variable Gain Amplifiers (RF-VGA) are important components for integrated TV broadcast receivers. Analog and digital controlled RF-VGAs are compared in terms of linearity and an AGC loop architecture suitable for digitally controlled RF-VGA is proposed. Further linearity enhancement applicable for CMOS implementation is also discussed.

Publication
IEICE TRANSACTIONS on Electronics Vol.E91-C No.6 pp.854-861
Publication Date
2008/06/01
Publicized
Online ISSN
1745-1353
DOI
10.1093/ietele/e91-c.6.854
Type of Manuscript
Special Section PAPER (Special Section on Analog Circuits and Related SoC Integration Technologies)
Category

Authors

Keyword

VGA,  AGC,  SiGe BiCMOS,  CMOS,  tuner,  IIP3,  linearity