Bob Fehrenbach said:

>About three years ago I designed a unit using an IR remote.  At the
>time I used an NEC chip (UPD1620) in the remote.  Worked like a champ.
>Recently NEC has made the part obsolete without a suggested alternative.
>
>I have found an SGS Thomson part, M3004AB1, which looks like a candidate
>although the encoding is different and the receiver software will have
>to be changed.
>
>It would be nice to have some choices here but SGS-T is the only one
>so far.
>
>These parts typically include a keyboard scanner, some sort of encoder,
>a modulator (usually around 40 kHz) and the IRLED driver.
>
>I suspect that since most of the remotes are made off-shore that few, if
>any, parts of this type are imported.  To make things even more
>difficult, the volume on this project is relatively low - buy quantities
>in the 25 - 50 piece range.
>
>
I believe Philips and Siemens both make this type of device.

Reg Neale