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PICList Thread
'SQ GEN - I2C for PIC'
1996\11\05@093245 by Brian Hackett

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Does anyone know of a sq wave generator that has an I2C interface that can
be used with a PIC?  I am looking for one that can produce an output over the
range of 1 to 100KHz.  It will be used to drive a digital fillter that has a
100 to 1
clock to center internal divider.  Any help would be greatly appreciated.
Thanks.

Brian Hackett
Ann Arbor, MI

1996\11\05@133949 by Kalle Pihlajasaari

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Hi Brian,

> Does anyone know of a sq wave generator that has an I2C interface that can
> be used with a PIC?  I am looking for one that can produce an output over the
> range of 1 to 100KHz.  It will be used to drive a digital fillter that has a
> 100 to 1
> clock to center internal divider.  Any help would be greatly appreciated.
> Thanks.

Fox Ocillators makes a sealed Can device that can be programmed to generate
a frequency between about 450 kHz and 150 MHz.  If you were to divide
this by 1024 or 1000 you would get the range you are looking for.

The device is serially programmed but sweeping in frequency may not
be as smooth as you desire for filter purposes.

Not I2C for the one I have also price about 20 .. 30 US$.

Cheers
--
Kalle Pihlajasaari     spam_OUTkalleTakeThisOuTspamdata.co.za
Interface Products     Box 15775, Doornfontein, 2028, South Africa
+27 (11) 402-7750      Fax: +27 (11) 402-7751

1996\11\05@153057 by Matthew Mucker

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face
AAIIGGHH!!

Please, people, when you assist others with finding a part that does the
trick they need done, include the part number that you are referring to,
and, if possible, the name and phone number of the manufacturer and/or
supplier.  The part mentioned below would be of great value to me in an
upcoming project, but alas, no part number or how-to-get-one info.


{Quote hidden}

 "DOS Computers manufactured by companies such as IBM, Compaq, Tandy, and
millions of others are by far the most popular, with about 70 million
machines in use wordwide. Macintosh fans, on the other hand, may note that
cockroaches are far more numerous than humans, and that numbers alone do
not denote a higher life form."

1996\11\05@173950 by Dmitry Kiryashov

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Brian Hackett wrote:
>
> Does anyone know of a sq wave generator that has an I2C interface that can
> be used with a PIC?  I am looking for one that can produce an output over the
> range of 1 to 100KHz.  It will be used to drive a digital fillter that has a
> 100 to 1
> clock to center internal divider.  Any help would be greatly appreciated.
> Thanks.

Maybe PIC16CXX with code optimized for next tasks:
- Receiving/Sending data from/to I2C ;
- Generating square wave ;
- Nothing more ( Or may be else ;)

I think with quartz from 4 MHz and higher
you get sq wave generator and probably more. ;)

WBW Dmitry.

1996\11\06@060530 by Kalle Pihlajasaari

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Hi AAIIGGHH!!

> Please, people, when you assist others with finding a part that does the
> trick they need done, include the part number that you are referring to,
> and, if possible, the name and phone number of the manufacturer and/or
> supplier.  The part mentioned below would be of great value to me in an
> upcoming project, but alas, no part number or how-to-get-one info.
>
> >Fox Ocillators makes a sealed Can device that can be programmed to generate
> >a frequency between about 450 kHz and 150 MHz.  If you were to divide
> >this by 1024 or 1000 you would get the range you are looking for.
> >
> >The device is serially programmed but sweeping in frequency may not
> >be as smooth as you desire for filter purposes.
> >
> >Not I2C for the one I have also price about 20 .. 30 US$.

Possible part number F6053A Fox Electronics Customer service
(813) 693-0099 in Florida.

>   "DOS Computers manufactured by companies such as IBM, Compaq, Tandy, and
> millions of others are by far the most popular, with about 70 million
> machines in use wordwide. Macintosh fans, on the other hand, may note that
> cockroaches are far more numerous than humans, and that numbers alone do
> not denote a higher life form."

Incidence of the Ebola virus is fortunately rare, draw your own conclusions
and recycle your sig if it is supposed to be witty, after the first time
it becomes just wasted bandwidth.

Cheers
--
Kalle Pihlajasaari     .....kalleKILLspamspam@spam@data.co.za
Interface Products     Box 15775, Doornfontein, 2028, South Africa
+27 (11) 402-7750      Fax: +27 (11) 402-7751

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