[sdiy] photodiodes and inverters

Bert Schiettecatte bert.schiettecatte at esat.kuleuven.ac.be
Wed Jun 4 12:58:23 CEST 2003


Hi all,

I'm trying to figure out the best and cheapest way to build a photodiode
receiver circuit.. I'd like to amplify and detect a 12Mhz sine wave signal
buried in noise (I probably bothered all of you with this question before
but I still haven't figured it out, being a computer scientist).

A looked at the schematic

www.imagineeringezine.com/PDF-FILES/75mfbvr.pdf

But I fear that if I use this with my photodiode (SFH213), the input of the
inverters will somehow function as a low-pass filter, attenuating the signal
from the photodiode? I'd also like to use the CD74HCT04E instead of the
harder to get toshiba part from the schematic.

Thanks!
bert



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