fig.11 from datasheet
http://www.vishay.com/docs/82187/tsop362x.pdf
is the answer for transmission LED wavelenght (you can't speak about
bandwith here because an IR LED has a bandwith of 10-20nm)
and fig.5 for the max frequency modulation

In direct sunlight almost sure will not work, will be blinded by the sun.
You need an extra black or blue lense in front of it.

Vasile

On 10/17/08, Dr Skip <drskip@gmail.com> wrote:
> Sorry for the bandwidth - I think 40kHz will be more like it, and not
> these units. My product questions are mostly answered, but I could still
> use any advice from those that have been here before. ;)
>
> -Skip
>
>
> Dr Skip wrote:
> > I'm looking to use an IR link in an upcoming project and found that
> > Vishay has 3 OK priced receiver modules: TSOP36236TR, TSOP6236TR,
> > TSOP36238TR - 36kHz and 38kHz.
> >
> > Does anyone have anything good or bad to say about them?
> >
> > It's going to be exposed to sunlight in an outdoor environment. It
> > won't receive in that environment, but I'm concerned about its output
> > starting to go from the 'noise'. I used to have a TV that would come
> > on at a certain time in the pm everyday in a certain month when
> > sunlight hit it. Which would be better, 36 kHz or 38? Also, are these
> > things matched to particular IR LEDs or is the optical bandwidth wide
> > enough on all IR LEDs that any will do?
> >
> > At $2 ea, are there better-cheaper ones I should consider? The signal
> > won't be standard, but custom and kept simple - some simple pulse
> > train for on/off. False triggering from being near a window or such
> > needs to be avoided, also in a simple manner.
> >
> > Thanks in advance,
> > Skip
> >
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