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A plug in Digital to Analog converter board?

 
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pfournier



Joined: 30 Sep 2003
Posts: 89

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A plug in Digital to Analog converter board?
PostPosted: Fri Dec 22, 2006 3:16 pm     Reply with quote

I'm looking for a DAC board that all I have to supply is power and an interface. I was hoping there was a PIC eval board with an on-board DAC, but I haven't seen that. I'll gladly take all recommendations.
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-Pete
PCM programmer



Joined: 06 Sep 2003
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PostPosted: Fri Dec 22, 2006 3:40 pm     Reply with quote

Let's assume your DAC is in an SOIC-8 package. Then just get a
little "Surfboard" and solder the DAC onto it (using a magifier). Photo:
http://rocky.digikey.com/WebLib/Capital%20Advanced/Web%20Photos/9082.jpg
More information:
http://www.digikey.com/scripts/DkSearch/dksus.dll?Detail?Ref=219695&Row=280270&Site=US
Catalog page, showing the various types of Surfboards:
http://dkc3.digikey.com/PDF/T063/1737.pdf

Then get a 3M "Super Strip" or "Circuit Strip" breadboard and plug
the "Surfboard" into it.
It looks like this:
http://info.hobbyengineering.com/pics/i1166-1045x351.jpg

See the lower right corner of this catalog page:
http://dkc3.digikey.com/PDF/T063/1729.pdf
Lots of companies sell these breadboards.

Then run wires over from your PIC prototype board (such as
PicDem2-Plus) to the Super Strip board. Also connect power and
ground. Then you can test your DAC. Of course, if you can buy
the DAC in a DIP-8 package, then you can just solder in a socket
on your PicDem2-Plus board and connect it to the Port i/o pins
with a few wires. That's the easiest way to do it.
kender



Joined: 09 Aug 2004
Posts: 768
Location: Silicon Valley

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PostPosted: Tue Dec 26, 2006 11:32 am     Reply with quote

There are simple DAC chips (in 8-DIP), that take only power and digital interface. For example: MAX538 with SPI interface and MAX517 with I2C interface. I think they are as simple to integrate as the board that you're looking for.
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