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Subject: AD9854 DDS chip

Date: 06/27/00 at 9:52 PM
Posted by: Dave Hand
E-mail: hand@corestar-corp.com
Message Posted:

I'm trying to use the Analog AD9854 DDS chip to generate
sine waves. So far I'm not having much luck. Everything
seems to work as per their data sheet (eg I can read
back the registers), but so far no sine wave output!

I am setting it for single tone mode, which should
be very simple. I do a master reset, then set the
control and freq registers and then send an IOUD.

If anyone has actually programmed this chip, I would
appreciate any help. We had to make our own prototype
board since the ones from Analog don't seem to be available.
If anyone knows where I could get one, that would be very
helpful as well.


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