Electronic Devices - Active Filters - Discussion
Discussion Forum : Active Filters - General Questions (Q.No. 9)
9.
Refer to the given figure. The roll-off of this filter is about
Discussion:
6 comments Page 1 of 1.
Mega_nii said:
3 years ago
This is not a bandpass. I think this one is a bandstop.
Bandpass is when the poles are in series. Parallel poles indicate bandstop.
Bandpass is when the poles are in series. Parallel poles indicate bandstop.
Mary Sam said:
3 years ago
The order can be known by the number of poles which is the number of RC pairs in the circuit.
(1)
Sudhi said:
3 years ago
Can someone please explain to me how do you know the order of filters based on the diagram?
Ramesh said:
7 years ago
Because we used only one pair of the bandpass filter. If we use two filters we called second order.
Student said:
7 years ago
How can we know it is first order?
Hiren Patel said:
10 years ago
Because it is first order Band Pass Filter.
Roll-off of the filter is depends upon the order of the filter.
For first order it is 20 db/decade, For second order 40 db/decade and so on.
So, here the answer is 20 db/decade.
Roll-off of the filter is depends upon the order of the filter.
For first order it is 20 db/decade, For second order 40 db/decade and so on.
So, here the answer is 20 db/decade.
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