A new log-domain realization of two-integrator-loop biquad

Kircay A., ÇAM U.

FREQUENZ, cilt.60, ss.50-52, 2006 (SCI-Expanded, Scopus)

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 60
  • Basım Tarihi: 2006
  • Doi Numarası: 10.1515/freq.2006.60.3-4.50
  • Dergi Adı: FREQUENZ
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.50-52
  • Anahtar Kelimeler: two-integrator-loop biquad, log-domain filters, current-mode circuits, state-space synthesis
  • Dokuz Eylül Üniversitesi Adresli: Evet

Özet

This paper proposes a new log-domain realization of biquadratic filter, which is systematically derived using the two-integrator-loop and state-space synthesis procedure. The filter is constructed with two integrators and current summer circuit. This biquadratic realizes highpass filter, bandpass filter and lowpass filter simultaneously. The proposed filter has a simple structure and can be electronically tuned. PSPICE simulations are given to confirm the theoretical analysis.