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Tool/software:
Hello E2E Experts,
Good day.
A fellow group member recently purchased two DAC39 RF10 eval boards (set up as seen in figure 3-1 of the user guide), but, after hooking the output up to an oscilloscope, we quickly realized we were not getting the signal we expected. It seems that the output is being pulled to 0 any time it should be holding steady.
We would like to use the DAC to generate arbitrary patterns defined as a series of 14-bit numbers from a csv file. As can be seen in the attached oscilloscope pictures (excuse the shoddiness -- also attached are configuration GUI screenshots), the sin wave comes out as expected, but the constant signal and square wave are pulled to 0. There is also an example of a Gaussian-shaped bit pattern which ends up looking like it passed through some kind of filter. As can be see in the attached, changing from NRZ to RTZ did nothing except make the output signal weaker. We have two copies of both the DAC and the pattern generator which -- in all combinations -- show the same issue.
Is there a setting we are missing that is causing this behavior?
Additional information:
We already tried the troubleshooting steps in the User Guide as well. We also observed the problem on two separate units. Are there any built-in settings that cause the behavior we're observing?
