IR sensor

Discussion in 'General Electronics Chat' started by minh_dp, Sep 26, 2013.

  1. minh_dp

    Thread Starter New Member

    Nov 25, 2012
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    0
    Hi all,

    I need help identifying IR receiver sensor per attached.
    Attached picture is back, front and top view of a sensor.

    Thanks.
     
  2. mcgyvr

    AAC Fanatic!

    Oct 15, 2009
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    Just a typical 3 pin IR receiver..
    probably carrier frequency of 38khz
     
  3. minh_dp

    Thread Starter New Member

    Nov 25, 2012
    2
    0
    Appreciate your input, mcgyvr. Yes, it is 38KHz IR receiver.
    It would be nice if anyone can identify the manufacturing # (datasheet) of component from the picture.
    I think it's PL-IRM0101-3 but I'm not certain. I'd like to know which pin is the output pin.

    Thanks once again.
     
  4. mcgyvr

    AAC Fanatic!

    Oct 15, 2009
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  5. ian field

    Distinguished Member

    Oct 27, 2012
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    So far I've yet to ever see one of those with any part No markings.

    I usually aquire mine from scrap TVs etc - if they're on a sub-panel, I leave them there and keep the panel so I can identify the pin layout when I'm ready to use it.

    GND is usually blindingly obvious, Vcc (5V) has the + side of a small electrolytic and a 100 Ohm resistor - the track to the output pin is usually the thinnest and snakes off across the board never to be seen again.

    IIRC - the output has a pull-up sesistor somewhere in the region of 15 - 20k, you might be able to identify O/P & Vcc from that, that only leaves GND - applying 5V to the O/P shouldn't do much with no Vcc to switch the transistor on, you could just get away with trial & error.
     
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