Hi Jon > Yes, I thought about building a receiver out of various > parts, but there are application specific parts that combine > all this in one unit. Most are made with 38 KHz band pass > filters for VCR remote controls,
Yes, that's why I didn't even look into theses integrated devices. > but the QSE159 does not > have the BPF, looked to be sensitive enough, and was really > cheap ($1.06) Indeed, interesting. Not sure if it is sensitive enough, 0.25 mW/cm² worst case translates to 2.5W/m², that's quite a lot. But, now that I started looking, there are quite a few similar integrated devices available, some with much high sensitivity down to at least 10µW/cm². However most are lacking the Schmitt-trigger of the QSE159, nice part, that you found, I'm going to get one, too. See you Flor ------------------------------------------------------------------------------ _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
