Design of differential type class-AB log-domain second-order notch filter

KIRÇAY A., ÇAM U.

IEEE 15th Signal Processing and Communications Applications Conference, Eskişehir, Türkiye, 11 - 13 Haziran 2007, ss.451-454 identifier identifier

  • Yayın Türü: Bildiri / Tam Metin Bildiri
  • Cilt numarası:
  • Doi Numarası: 10.1109/siu.2007.4298579
  • Basıldığı Şehir: Eskişehir
  • Basıldığı Ülke: Türkiye
  • Sayfa Sayıları: ss.451-454
  • Dokuz Eylül Üniversitesi Adresli: Evet

Özet

In this study, a new current-mode second-order differential type class-AB log-domain notch filter is proposed It is systematically designed using state-space synthesis method. Only transistors and grounded capacitors are required to realize the filter circuit. Three cases of the second-order notch filter were obtained; the regular notch, the lowpass notch, and the highpass notch. The center frequency, the notch frequency, the quality factor, and gain of the filter can be electronically tuned by changing external currents. PSPICE simulations are given to confirm the theoretical analysis.