list the 5 parameters of a filter and how they are calculated
Filters usually allow only certain frequencies through it.
Filters classified into following categories
1. Low pass filter
2. High pass filter
3. Band pass filter
4. Band stop filter
Parameters of the filters are:
1. Gain:
Gain = Output response/input response= Vo(s)/Vin(s)
2. Bandwidth
It is defined as the range of frequencies that are allowed by filter
Bandwidth = fhigh-flow
Where fhigh is higher cutoff frequency
flow is lower cutoff frequency
3. Cuttoff frequency
It is the frequency at which ratio of output to the input is 0.707
4. Quality factor
It is a measure of goodness of the circuit.
Quality factor(Q) = Resonant frequency / bandwidth
5. Stability
Stability can be determined by finding poles of the system.
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