Active Fourth-Order Band-Pass RC-filter with Independent Control of Bandwidth and Irregularity of Frequency Response
Darya Yu. Denisenko, Nikolay Nikolayevich Prokopenko, Nikolay V. Butyrlagin · 2021
A new circuit of a fourth-order band-pass RC-filter (BPF) which provides independent adjustment of the main parameters is investigated: the irregularity of frequency characteristic (FC), the bandwidth and the scale transfer coefficient. An algorithm for choosing the circuit parameters to achieve a given accuracy of digital potentiometers is described. The transfer functions of the developed BPF are presented and the frequency response obtained as a result of computer simulation in CAD Micro-Cap is shown.