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General Category => Analog discussion => Topic started by: Andre on March 23, 2008, 09:24:06 AM

Title: Bandwidth filter
Post by: Andre on March 23, 2008, 09:24:06 AM

I would like a bandwidth filter that will only permint a narrow width at 4000 Hz as narrow as can be and if possible this should be done w/o op-amps.

Can someone help me?

Title: Re: Bandwidth filter
Post by: Stefano on March 27, 2008, 23:20:43 PM

http://www.pcbheaven.com/handbook/archive/index.php?s=F&cat=Filter (http://www.pcbheaven.com/handbook/archive/index.php?s=F&cat=Filter)

Title: Re: Bandwidth filter
Post by: kam on March 28, 2008, 00:49:02 AM

search for resistor capacitor (RC) filters

Title: Re: Bandwidth filter
Post by: Supernova on March 29, 2008, 00:41:21 AM

Why not op amps? You get nice active filters

Title: Re: Bandwidth filter
Post by: Andre on March 31, 2008, 22:14:13 PM

Quote from: Supernova on March 29, 2008, 00:41:21 AM

Why not op amps? You get nice active filters

Because i am not very familiar with op-amps

any other idea?

Title: Re: Bandwidth filter
Post by: FelIX on April 04, 2008, 21:24:36 PM

Although i believe you should use op-amps, try this for a chance

Filter (http://www-users.cs.york.ac.uk/~fisher/lcfilter/)

Title: Re: Bandwidth filter
Post by: Andre on April 06, 2008, 13:36:18 PM

Well, i tried op-amps for a chance. They are very very good. this 741 gizmo is excellent. I was afraid to use them as i know nothing but i have just begun to love them!

Title: Re: Bandwidth filter
Post by: kam on April 06, 2008, 18:40:11 PM

There are more applications that you can do with 741. Search more and you will appreciate this chip!