>> >.. please allow me to suggest an excellent IR receiver:
>> >   The Siemens SFH-506-XX (where XX represents the IR carrier frequency)
>>
>> > I agree that this is a wonderful part.
>>
>> What bothers me

See previous mail ...

>Paul Mathews, consulting engineer
>AEngineering Co.

OK, this is what I have found:
The problems are purely optical (in my case with different SFH505A modules).
Never any problems with electromagnetic fields and such when using res and
tantal cap.
The device is excellent value for money (don't get me wrong).
Only complete blocking of the florescent source cures at a distance of 2m (In
this case my hand was used, if I am so close to the receiver why use remote ;) )
Electricaly it is fine as I live very close to a 2MW LW transmitter (234kHz)
and no problems here.

Due to the above problem I'd think before using them in a commercial products
as other more elaborate RC receivers are less prone to the above phenomena (eg.
Complete Philips TDA3047 circuits with shielding and LC filters).

On a different note I have also used Philips SAA3028 which converts RC5 to I2C
(2wire). Check it out.

As they say here "Un homme prevenu en vaut deux"

Edward Cardew
Societe Europeenne des Satellites
G.D. of Luxembourg