FIELD: radio engineering and communications.
SUBSTANCE: invention relates to radio engineering and communication and can be used as an interface for limiting the spectrum of a signal source. Technical result is achieved by including two operational amplifiers, resistors and capacitors in a certain sequence in the band-pass ARC filter circuit.
EFFECT: design of a band-pass ARC filter circuit with frequency reduction of the pole, which provides independent adjustment of three main parameters of the amplitude-frequency characteristic – pole frequency, pole attenuation, as well as transmission coefficient in the pass band.
1 cl, 7 dwg
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