Hey guys,
I have a few true or false questions about the attached active band pass filter. Problem is all the books we have only cover active low/high pass filters and nothing about the bands - and everything I've researched so far hasn't really covered the characteristics of the filter I'm looking at. The questions are as follows:
- The gain is constant from DC to 3180Hz bandwidth.
- Vout = Vin× (RF / R1) for DC signals.
- Attenuation rate is -40dB/decade.
- Signals with v(t) = sin 2000πt are not blocked by the circuit.
- Voltage (VA-VB) is amplified differentially across a large bandwidth.
- Attenuation rate is -20dB/decade.
- An EMI noise signal of 50Hz is cut by the circuit.
- A Noise signal of 350Hz is cut by the circuit.
I'm pretty sure the Attenuation rate is -20dB/decade since its only a first order? Apart from that I don't know where to really look. If you guys could point me in the right direction that would be awesome.
Kind regards,
Max
I have a few true or false questions about the attached active band pass filter. Problem is all the books we have only cover active low/high pass filters and nothing about the bands - and everything I've researched so far hasn't really covered the characteristics of the filter I'm looking at. The questions are as follows:
- The gain is constant from DC to 3180Hz bandwidth.
- Vout = Vin× (RF / R1) for DC signals.
- Attenuation rate is -40dB/decade.
- Signals with v(t) = sin 2000πt are not blocked by the circuit.
- Voltage (VA-VB) is amplified differentially across a large bandwidth.
- Attenuation rate is -20dB/decade.
- An EMI noise signal of 50Hz is cut by the circuit.
- A Noise signal of 350Hz is cut by the circuit.
I'm pretty sure the Attenuation rate is -20dB/decade since its only a first order? Apart from that I don't know where to really look. If you guys could point me in the right direction that would be awesome.
Kind regards,
Max
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