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Problems with DAC output

Hello,

My name is Shawn Hymel, and I am on Evan Hanusa's senior design team.  I am trying to make the DAC on the IF-RIO output a modulated sine wave generated on the FPGA (using the sine lookup table VI), however, I have been unsuccessful.  I shift the data from the table 2 places to the right and alternate between I and Q data, since the DAC is set up in IQ mode.  I get an output on the oscilloscope that looks something like half of a sinc pulse followed by another inverted half (I will try to get a picture of this if needed).  I would be most appreciative if someone could look at the files below and offer any suggestions.

http://www.rose-hulman.edu/~hymelsr/Senior_Design/

Thanks you,

Shawn
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