LOW_COST_UNIVERSAL_ACTIVE_FILTER

Published:2009/7/2 2:18:00 Author:May | From:SeekIC

The circuit as shown in Fig. 1 gives the bandpass operation the transfer function calculated from Interchanging the capacitor C with the resistor R at the input of the circuit high-pass operation is obtained. A low-pass filter is obtained by applying two parallel connections of R and C as shown in Fig. 2. The low-pass operation may be much improvedwith the circuit as gtven h Fig．3．Here the gamand Q may be set up separately with respectto the cut-off frequency according to theequations



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