IR photo diode

Makaram said:

Hey guys, I'm trying to set up a photo diode for object detection at roughly around 38khz.
although I am capable of doing this with a fancy phototransistor (which apparently comes with filters already in place) but I don't know how to filter the photodiode to the required frequency.
Any assistance would be most welcome.

thanks

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Makaram said:

I guess im looking for a 38khz bandpass filter using simple discrete components, unless of course the IC are cheap

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