Rob wrote:
>
> Hi,
>
> I am trying to consolidate a design I have by eliminating an external
> modem and replacing it with a Modem IC on the PCB.  I have used Cermetek
> modem ICs and they are very easy to work with and very little support
> circuitry is needed.  However they are costly (at least $100) for a 14400.
> Does anyone here know of some Modem IC manufacturers or have used modem
> ICs in their projects?  A recommendation of where to look or parts to
> research would be great.  I tried a web search and found only one place
> who had something but it required a lot of support circuitry.

Rockwell makes a range of modem IC's. Try  http://www.nb.rockwell.com/

>
> Secondly, I have heard some mention of using a PIC as a modem.  If that is
> true, how easy is this to implement?  Where could I find some code?

I've seen a California-designed house alarm with a built-in
modem/communicator. On closer inspection (opening the damn thing) it
turned out to be a 16MHz 16C74 doing to whole lot. Quite impressive.


--
Friendly Regards

Tjaart van der Walt
mailto:tjaart@wasp.co.za
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