Article View: sci.electronics
Article #11574Re: what's a SAW?
From: Tim Channon
Date: Wed, 14 Oct 1992 02:16
Date: Wed, 14 Oct 1992 02:16
18 lines
1190 bytes
1190 bytes
> >Could someone explain what a SAW filter is and what it is used
> >for? ( the $.25 explanation will do )
>
> Surface Acoustic Wave filters are analog computational elements
> usually used to perform correlations. They're typically used with
And just about every TV set uses one!
In this case it is used as a high performance bandpass filter and works at IF
frequencies -- 30..40MHz or maybe much higher.
An analogy is a tranversal filter which shows similar charactersitics. The
excellent group delay characteristic provided one of the big advances in TV
performance in recent years.
TC.
E-mail: tchannon@black.demon.co.uk or tchannon@cix.compulink.co.uk
Technical Details
Message-ID:
<719054189snx@black.demon.co.uk>Path:
arc1-ca.pugleaf.net!sparky!uunet!pipex!demon!black.demon.co.uk!tchannonReferences:
<1992Oct12.172119.5587@netcom.com>Show Full Headers
Complete Article Headers
Newsgroups: sci.electronics From: tchannon@black.demon.co.uk (Tim Channon) Path: arc1-ca.pugleaf.net!sparky!uunet!pipex!demon!black.demon.co.uk!tchannon ReplyTo: tchannon@black.demon.co.uk Subject: Re: what's a SAW? References: <1992Oct12.172119.5587@netcom.com> Distribution: world X-Mailer: cppnews $Revision: 1.18 $ Organization: null Lines: 17 Date: Wed, 14 Oct 1992 02:16:29 +0000 Message-ID: <719054189snx@black.demon.co.uk> Sender: usenet@gate.demon.co.uk