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Article #3034Re: Infrared remote controller decoding
From: Peter Fales
Date: Tue, 12 Sep 1989 12:55
Date: Tue, 12 Sep 1989 12:55
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In article <12459@orstcs.CS.ORST.EDU>, liud@guille.ece.orst.edu (Dongtai Liu) writes: > > I suggest that you try a PIN photo diode. Since the sensitivity of PIN > diodes are much lower than photo transistors, an op-amp stage would be > necessary to amplify the signal. I can second this one. When I was experimenting with IR receivers I found that "typical" bipolar phototransistors and photodiodes (i.e. from Radio Shack) were both too slow for this application. PIN diodes worked fine however. There is chip made by Motorola, the MC3373, that is designed to connect directly to a PIN photodiode and provide all the necessary buffering and amplification. I have never used it, but from looking at app. notes, it should be very easy to use. I believe it is sold by other manufacturers as the 1373. -- Peter Fales AT&T, Room 5B-420 2000 N. Naperville Rd. UUCP: ...att!peter.fales Naperville, IL 60566 Domain: peter.fales@att.com work: (312) 979-8031
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Path: arc1-ca.pugleaf.net!utzoo!attcan!utgpu!jarvis.csri.toronto.edu!mailrus!uwm.edu!gem.mps.ohio-state.edu!pacific.mps.ohio-state.edu!tut.cis.ohio-state.edu!att!cbnewsc!psfales From: psfales@cbnewsc.ATT.COM (Peter Fales) Newsgroups: sci.electronics Subject: Re: Infrared remote controller decoding Summary: Need a PIN Photodiode Message-ID: <3108@cbnewsc.ATT.COM> Date: 12 Sep 89 12:55:02 GMT References: <12459@orstcs.CS.ORST.EDU> Organization: AT&T Bell Laboratories Lines: 22