Questions tagged [band-pass]

Bandpass is an adjective that describes a type of filter or filtering process; it is to be distinguished from passband, which refers to the actual portion of affected spectrum. Hence, one might say "A dual bandpass filter has two passbands." A bandpass signal is a signal containing a band of frequencies not adjacent to zero frequency, such as a signal that comes out of a bandpass filter.

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Do narrow-band single-chip bandpass filters for audio frequencies exist?

I am looking for a single-chip implementation of a bandpass filter for audio frequencies, but unsure if they even exist. All the filters I've seen seem to be at least in hundred KHz range. So my ...
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Derive frequency equations from an active multi feedback bandpass filter

I recently got some help deriving the transfer function of a multi feedback active bandpass filter made from capacitors resistors and an opamp working as an inverting amplifier. The transfer function ...
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Multi-feedback active bandpass filter - transfer function derivation

new to this forum. I have a question about a certain topic I'm struggling with. I have this circuit, C1 and C2 are equal and therefore just described as C: I want to deduce the transfer function Vout/...
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How to choose resistance and capacitance value in active bandpass filter?

I am trying to make a bandpass filter around 300Hz using this circuit. I have calculated the values of the components using the equations shown in this website assuming low frequency cutoff 160Hz and ...
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Why is center frequency of a bandpass filter is given by the geometric average of the two cutoff frequencies?

In electronic communication systems, there is a concept called center frequency. A bandpass filter has upper cutoff and lower cutoff frequencies. Center frequency supposed to be in the middle of these....
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Filter for radio receivers

I am in need of an intermediate frequency (IF filter) for somewhere around 200 Khz as intermediate frequency. However, I know just the bare minimum of filter design ( learnt all that a couple of days ...