[HomeBrew] 60hz time base chip

[Dick Foster]

The microprocessor is probably the best one chip solution.  If you're not
into programming micro's, you could use a crystal of 60KHz or 6MHz and a
bunch of dividers.  It would take more silicon but you  can cascade divide
by 10 decade counters 'till you get down to 60Hz.
Regards,
Dick W5TA

----- Original Message ----- 
From: "Missouri Guy, N0TT" <n0tt1 at juno.com>
To: <HomeBrew at mailman.qth.net>
Cc: <thynde at donblackburn.com>
Sent: Wednesday, July 27, 2005 9:06 AM
Subject: Re: [HomeBrew] 60hz time base chip


> ** Please do NOT cross-post messages when posting to HOMEBREW **
>
> > >The 8-PIN MM5369 was once used to generate a 60 hz time
> > >base using only a color burst crystal.  Wouldn't you know,
> > >the chip was discontinued some time ago.  I've been
> > >trying to find a replacment that, hopefully, will stay around
> > >for awhile.
> > >
> > >Does anyone know of a similar chip that will perform the
> > >same function?
>
> > My first post to the homebrew group so I hope I haven't missed
> > something
> > in this thread but you could use a small 8 pin micro chip programmed
> >
> > with a divider to give those results I suppose the cavat is it must
> > be
> > programmed.
>
> Hi Tim,
>
> You haven't missed anything in the thread....
>
> I'd like to try out one of those field programmable chips.  I looked
> at some on the net, but I haven't found any that were readily
> available from Mouser...I'll keep looking.
>
> Meanwhile, Loren, WA7SKT had a MM5369 in his collection and
> will mail that to me.  I'll put that to good use in a project I'm
> currently working on.
>
> 73,
> Charlie
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