A low-pass Sallen-Key two-pole) filter has an upper cutoff frequency of 2 kHz and a Butterworth response curve. The voltage gain of the circuit decreases by approximately if its input frequency increases to 200 kHz.
A) 20 dB
B) 40 dB
C) 60 dB
D) 80 dB

Question

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The Answer of A low-pass Sallen-Key two-pole) filter has an upper cutoff frequency of 2 kHz and a Butterworth response curve. The voltage gain of the circuit decreases by approximately if its input frequency increases to 200 kHz.
A) 20 dB
B) 40 dB
C) 60 dB
D) 80 dB

A Low-Pass Sallen-Key Two-Pole) Filter Has an Upper Cutoff Frequency