A voltage-controlled frequency tunable CMOS current-mode filter for software radio

  • Jun Ho Bang*
  • , In Ho Ryu
  • , Jae Young Yu
  • *Corresponding author for this work

Research output: Contribution to journalJournal articlepeer-review

Abstract

In this paper, a voltage-controlled frequency tunable current-mode integrator and a 3rd-order current-mode Chebyshev filter in 1.8V-0.18μm CMOS is realized for software radio applications in system-on-chips. This filter is used for reconstruction purposes between a current-steering DAC and a current-mode mixer. Power consumption of the designed filter can be reduced by using a current-mode small size integrator. And also, cutoff frequency of this filter is variable between 1.2MHz and 10.1MHz, the power consumption is 2.85mW. And the voltage bias compensated circuit is used to control the voltage variation.in the designed filter.

Original languageEnglish
Pages (from-to)871-876
Number of pages6
JournalTransactions of the Korean Institute of Electrical Engineers
Volume60
Issue number4
DOIs
StatePublished - 2011.04

Keywords

  • Chebyshev filter
  • Continuous-time filter
  • Current-mode integrator
  • Low-pass filter
  • Voltage-controlled frequency

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