FIELD: radio engineering and communication.
SUBSTANCE: invention relates to radio engineering and communication; it can be used as an interface for limiting the spectrum of a signal source. The fourth-order RC filter with differential input and paraphase output contains first (1) and second (2) inputs of the device, first (3) and second (4) outputs of the device, output operational amplifier (5), first (6), second (7), third (8) and fourth (9) capacitors, first (10), second (11), third (12), fourth (13), fifth (14) and sixth (15) resistors, as well as first (16), second (17), third (18) and fourth (19) additional capacitors, first (20) and second (21) additional resistors.
EFFECT: provision of an extended frequency range in a fourth-order bandpass active filter with a differential input and a paraphase output.
1 cl, 3 dwg
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