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Design of a Current-Mode Bandpass Filter with Controllable Cutoff Frequency

  • Junho Bang
  • Jeho Song
  • Myeongjun Noh
  • Inho Ryu
Conference paper
Part of the Communications in Computer and Information Science book series (CCIS, volume 339)

Abstract

In this paper, a bandpass filter with controllable cutoff frequency is designed by using current mode synthesis method which is good to design the low-voltage and low-power filter. The designed bandpass filter is composed of cascade connection between 3rd Butterworth highpass filter and 3rd Chebychev lowpass filter. And as a core circuit in the current-mode filter, a current-mode integrator and differentiator are designed and apply to designing filters. The cutoff frequency of the designed 6th bandpass filter can be controlled to 120kHz~54MHz according to control voltage, 0.7V~1.5V.

Keywords

Current-mode filter Bandpass filter Current-mode integrator Controllable cutoff frequency 

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References

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Copyright information

© Springer-Verlag Berlin Heidelberg 2012

Authors and Affiliations

  • Junho Bang
    • 1
  • Jeho Song
    • 1
  • Myeongjun Noh
    • 1
  • Inho Ryu
    • 1
  1. 1.Department of IT Applied System EngineeringChonbuk National UniversityJeonjuRepublic of Korea

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