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Passive/Active Frequency Response
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May16-14, 06:54 PM
I'm evaluating the Frequency Response and subsequently Step Response of a bandpass filter.
Is the frequency response going to be different for an active bandpass filter from a passive bandpass filter?
I've plotted the frequency response using LTspice with the following setup:
Small signal AC analysis:
AC amplitude: 15 V
Type of sweep: Octave
Number of points per octave: 30
Start frequency: 1
Stop frequency: 300
My hand calculations suggest the max frequency should be about 40 kHz.
However, using the -3dB rule, the max frequency ends up on 100 kHz.
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