Figure 3. K.H.N. Biquad Filter Realization [14]

From

DVCC Based K.H.N. Biquadratic Analog Filter with Digitally Controlled Variations

Bilal Arif, Mohd. Usama Ismail, Ale Imran

American Journal of Electrical and Electronic Engineering. 2014, 2(6), 159-164 doi:10.12691/ajeee-2-6-1