Article View: sci.electronics
Article #15350Re: Ring Detector IC
From: gordon hlavenka
Date: Mon, 23 Nov 1992 17:03
Date: Mon, 23 Nov 1992 17:03
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uunorth!cibbs!root writes: >... It would be nice if this IC took the phone >line as a input and produced either a TTL level or CMOS compatible output. Check with Motorola -- they sell "Tone Ringer IC" chips which interface to tip and ring and drive a piezo speaker. Their app notes describe using these ICs as ring detectors for microcontrollers and such. (Sorry, don't have my Moto books here or I'd give you a part number...) -- ---------------------------------------------------- Gordon S. Hlavenka cgordon@vpnet.chi.il.us Vote straight ticket Procrastination party Dec. 3rd!
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Newsgroups: sci.electronics Path: arc1-ca.pugleaf.net!sparky!uunet!elroy.jpl.nasa.gov!sdd.hp.com!saimiri.primate.wisc.edu!zaphod.mps.ohio-state.edu!pacific.mps.ohio-state.edu!linac!att!mcdchg!laidbak!tellab5!vpnet!cgordon From: cgordon@vpnet.chi.il.us (gordon hlavenka) Subject: Re: Ring Detector IC Message-ID: <1992Nov23.170308.20108@vpnet.chi.il.us> Organization: Vpnet Public Access References: <eiFmuB3w165w@cibbs.UUCP> Date: Mon, 23 Nov 1992 17:03:08 GMT Lines: 14