🚀 go-pugleaf

RetroBBS NetNews Server

Inspired by RockSolid Light RIP Retro Guy

Article View: sci.electronics
Article #17073

Re: Detecting Sine Wave freq

#17073
From: Geoff Swan
Date: Tue, 12 Jan 1993 22:00
16 lines
1412 bytes
In article <1993Jan10.024315.24578@murdoch.acc.Virginia.EDU>, pmw2c@csissun10.ee.Virginia.EDU (Paul Michael Wayner) writes:
>  I'm interested in designing a circuit that will determine
>  if a sine wave frequency is in a certain range of values,
>  specifically, 45-51 MHz.  It is very important that the
>  detector be as reliable a possible, so I would like to use
>  only a few active components and try to stick to RC's as
>  much a possible.
>   					Paul Wayner

Have you looked at any PLL's yet? They should do the trick fairly easily.

--------------------------------------------------------------------------
Geoff Swan (research & development)   _--_|\         swanee@megadata.oz.au
Megadata Pty Ltd                     /      \ 
2/37 Waterloo Rd, North Ryde,        \_.--._/               +61 2 805 0899
NSW 2113, Australia.                       v          (Fax) +61 2 887 4847
Technical Details
Message-ID: <1993Jan12.220056.10593@megadata.mega.oz.au>
Path: arc1-ca.pugleaf.net!sparky!uunet!munnari.oz.au!metro!dmssyd.syd.dms.CSIRO.AU!megadata!swanee
References: <1993Jan9.214241.22174@murdoch.acc.Virginia.EDU> <1993Jan10.024315.24578@murdoch.acc.Virginia.EDU>

Show Full Headers
Complete Article Headers
Newsgroups: sci.electronics
Path: arc1-ca.pugleaf.net!sparky!uunet!munnari.oz.au!metro!dmssyd.syd.dms.CSIRO.AU!megadata!swanee
From: swanee@megadata.mega.oz.au (Geoff Swan)
Subject: Re: Detecting Sine Wave freq
Message-ID: <1993Jan12.220056.10593@megadata.mega.oz.au>
Sender: news@megadata.mega.oz.au
Organization: Megadata P/L, North Ryde, Sydney, Aust.
References:  <1993Jan9.214241.22174@murdoch.acc.Virginia.EDU> <1993Jan10.024315.24578@murdoch.acc.Virginia.EDU>
Date: Tue, 12 Jan 1993 22:00:56 GMT
Lines: 17