A 43dB ACR low-pass filter with automatic tuning for low-IF conversion DAB/T-DMB tuner IC

Seyeob Kim, Bonkee Kim, Min Su Jeong, Jung Hwan Lee, Youngho Cho, Tae Wook Kim, Bo Eun Kim

Research output: Chapter in Book/Report/Conference proceedingConference contribution

14 Citations (Scopus)

Abstract

This paper provides a channel select low-pass filter with automatic cut-off frequency tuning circuit for low-IF conversion Digital Audio Broadcasting (DAB) and Terrestrial-Digital Multimedia Broadcasting (T-DMB) tuner IC. This filter has 1.58MHz cut-off frequency, 20dB and 65dB stop band attenuation at 1.9MHz and 2.4MHz, respectively. The in-band IIP3 is -8.4dBV and 1dB desensitization is satisfied for 490mVpp interferer at 1.7MHz frequency offset. By using simple automatic tuning technique, less than +/-1.5% cut-off frequency error and more than 40dB adjacent channel rejection (ACR) are obtained. The low-pass filter is fabricated in 0.18μ.m CMOS technology and consumes about 4.5mA with 1.8V power supply.

Original languageEnglish
Title of host publicationProceedings of ESSCIRC 2005
Subtitle of host publication31st European Solid-State Circuits Conference
Pages319-322
Number of pages4
DOIs
Publication statusPublished - 2005
EventESSCIRC 2005: 31st European Solid-State Circuits Conference - Grenoble, France
Duration: 2005 Sep 122005 Sep 16

Publication series

NameProceedings of ESSCIRC 2005: 31st European Solid-State Circuits Conference

Other

OtherESSCIRC 2005: 31st European Solid-State Circuits Conference
CountryFrance
CityGrenoble
Period05/9/1205/9/16

All Science Journal Classification (ASJC) codes

  • Engineering(all)

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