how i can design asharp active bandpass filter,and how i can calculate the values of resistors and capacitor?
i attached my band pass design (what is the change that i can do to make it sharper) ?
Sorry I missed you 12 Dec posting. You have a LPF and HPF cascaded. Usually this is only done
if the low corner and high corner are more than 10x apart.
For a really sharp bandpass, you need to do an actual bandpass. There are one op amp topologies,
but they can be really sensitive to component variations. I noticed just now that "SteveS" posted
a two op amp bandpass. Try it out!
I am unable to unpack your rar.zip file.
There are several hundred books on active filter design. Check your university library.
For "sharper" filter, you need higher Q. For a simple one,
you must have circuit maker on your PC to can see my attachment,i attached it agian the file opened by paint
Your question is very open-ended meaning there are many possible answers.
Here is an unpublished app note that should help you get started.
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