Re: TI-H: TI Modem


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Re: TI-H: TI Modem



D. Switzer wrote:
> 
> On Sat, 12 Oct 1996, Adam S. Nickerson wrote:
> 
> > Steve Peterson wrote:
> > >
> > > I was planning on trying to design a TI Modem from that 300 baud
> > > national semiconductor chip. Mine should be here in a few days.  Is
> > > anybody else doing this, if so let's team up. :)
> >
> > More details please!  I'm very interested.  How difficult will it be to
> > build?  Projected cost?  When do you expect you'll be posting the plans?
> 
>         Hey Steve !  I hope to do the same with the 300 baud chip,
> which hopefully will be here in a few days for myself also! I'd love
> to help out in anyways I can. I'm not the most gifted, but I can usually
> get things working..
> 
> Details: There's a 1-chip 300 baud modem that National Semiconductor
> sells. You can order a free sample off of their web site
> (www.national.com, search for 300 baud modem, I can't recall the
> part, but the last 2 digits are 43, you can find it easy enough). I'm
> guessing a few minor pieces would be required, but with the modem chip
> being free and I *heard* (though I can't find it) that national has a
> dtmf generator for dialing for free also, I'm guessing price would be
> like 5 bucks max.. (that's of course not including if you want to do
> some elaborate case to house the sucker in)
> 
>         It doesn't seem like it would be difficult to build, the
> more difficult part is coding soemthing for the 85 that would work
> with it..
> 
>         let's see what steve says, I'm gussing he's a bit more
> knowledgable on the topic than I!
That sounds great!  I'm going to go look for that chip.  I'd like to
take a look at the specs for it...  Please post regular status reports
-- this is very interesting...


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