Thread: Help! DIY Infra-red ?
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Old Feb 23, 2003, 12:59 PM
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my PNA4612 are also from Digikey. The Vishay parts are the only ones that I can get from Conrad (sort of german Radio-Shack), but when one part gives me glitches and the other one doesn't then this is a good reason for spending the overseas shipping costs and paying the import fees.

What would be a reason for taking even more sensitive parts? Using fewer IR LEDs? I use 20 LEDs with a peak current per LED of 200mA and was about to go to 40 LEDs because of the glitches. This seems to be unnecessary now. The PNA4612 seems to be a good compromise for me, as my models are so small that I don't want them to fly more far away than 45m.

A good reason for choosing different parts would be a better ratio of sensitivity to proofness against different signals (ambient light, sunlight, fluorescent light, electrical noise). Any data about this?

Regards, Jochen
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