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'[OT] [EE] 2400 baud MSK modem?'
2005\06\28@135054 by KY1K

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Can someone suggest a chip for a 2400 MSK modem (which is FSK at 2400 baud
with the frequencies being 2400 and 1200 Hz). I'd like a simple chip that
is suitable for a radio application.

I'd like something simple, like the old (discontinued) MX614 chip.

Thanks,

Art


2005\06\28@141340 by Marcel Duchamp

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KY1K wrote:
> Can someone suggest a chip for a 2400 MSK modem (which is FSK at 2400
> baud with the frequencies being 2400 and 1200 Hz). I'd like a simple
> chip that is suitable for a radio application.
>
> I'd like something simple, like the old (discontinued) MX614 chip.
>
> Thanks,
>
> Art
>
>
This site says it has the MX614:   http://www.glitchbuster.com/
so if you just want one or two, that might be a way to go.

If you want a project, a pic could likely do the same job.

2005\06\28@165843 by KY1K

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The MX614 can't be used at 2400, it stops at 1200 baud.

Any other suggestions??

Thanks,

Art

At 02:18 PM 6/28/2005, you wrote:
{Quote hidden}

>

2005\06\28@224031 by Mark Jordan

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face

       The CMX469A?

       An Atmel ATMEGA8 can do it using its ADC and some DSP filtering leaving
room for more tasks.

       Mark Jordan - PY3SS


On 28 Jun 2005 at 16:58, KY1K wrote:

{Quote hidden}

> >--

2005\06\29@150548 by KY1K

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Thanks Mark,

The chip has more pins than I'd like, but only uses 1.5 ma....which is
good. Wish the setup was a little simpler (like the tcm3105), but this one
should work fine.

Appreciate the info.

Have a great day and a  better tomorrow.

Art


At 10:38 PM 6/28/2005, you wrote:

{Quote hidden}

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