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A low noise and highly linear wideband CMOS RF front-end circuits for digital TV tuners

  • Ilku Nam*
  • , Donggu Im
  • , Young Wook Lim
  • , Xuemin Xu
  • , Hyung Su Lee
  • , Shin Hyouk Seo
  • *Corresponding author for this work
  • Pusan National University
  • LG Corporation

Research output: Contribution to conferenceConference paperpeer-review

Abstract

This paper presents an integrated low noise and highly linear wideband RF front-end circuits for a digital terrestrial and cable TV tuner, which are used as a part of double conversion zero-IF tuner. The low noise amplifier (LNA) shows a low noise figure and high linearity by adopting a noise canceling technique based on current amplification. The up-conversion mixer has high linearity by employing a third order intermodulation cancellation technique. The RF front-end circuits are designed in a 0.18 μm CMOS and draw 58 mA from a 1.8 V supply voltage. The RF front-end circuits show a voltage gain of 30 dB, an average single side-band noise figure of 4 dB, an IIP2 of 40 dBm, and an IIP3 of -3 dBmfor the entire band from 48 MHz to 862 MHz.

Original languageEnglish
Title of host publicationASICON 2009 - Proceedings, 2009 8th IEEE International Conference on ASIC
Pages451-454
Number of pages4
DOIs
StatePublished - 2009
Event2009 8th IEEE International Conference on ASIC, ASICON 2009 - Changsha, China
Duration: 2009.10.202009.10.23

Publication series

NameASICON 2009 - Proceedings 2009 8th IEEE International Conference on ASIC

Conference

Conference2009 8th IEEE International Conference on ASIC, ASICON 2009
Country/TerritoryChina
CityChangsha
Period09.10.2009.10.23

Keywords

  • CMOS
  • Digital TV
  • Linear
  • Low noise
  • RF front-end
  • Tuners
  • Wideband

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