ODP: (...) Opto isolator

[Roman Sowa]

I'd like to have so fast opto!
MIDI bit is 32us wide, so 2us rise time is like brickwall.
Once I used an opto much slower than that and it worked excellent
(Crystal wavetable chip that is)

Roman

> -----Oryginalna wiadomość-----
> Od:	Paul Maddox [SMTP:space_banana at hotmail.com]
> Wysłano:	17 maja 1999 12:16
> Do:	synth-diy at mailhost.bpa.nl
> Temat:	synthdiy_UK convention and Opto isolator
> 
> Dear all,
> 
>   Secondly, going back to my opto isolator thing, according to the
> datasheet 
> it has a rise time of 2uS , after digging out my calculator, this would 
> appear to be fast enough for midi (fall time of 200nS).. anyone 
> agree/disagree? Maplin dont have comeplete data on their opto-isolators,
> so 
> I may end paying through the nose for something from RS... anyone know of
> an 
> equivilent to the PC900/TIL111 or a supplier of either these two?
> 
>   Paul
> 
> 
> 
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