Here is what I was able to capture. This is a mix of the software I wrote along with using The PicoScope 6 software. The sampling rate I am using in my software is the max allowed with a signal channel at 16 bit resolution, 62.5 Mhz.
The signal looks a bit strange in these images because I am just plotting the data points and not drawing lines between them.
Here is a capture I obtained of what I would hope to see 100% of the time
The signal I am using is the output from an AD5930 DDS evaluation board. This signal burst was at 1 Mhz. The signal from the board looks like this without AC coupling the signal.
Most of the time however, when I have the PicoScope set for AC Coupling, the signal looks like this.
With the baseline noise looking like this
As you can see there is a few mV of DC on this signal. This is what I typically see though there are times where the offset is as much as 10 mV.
This is the same signal recorded using the PicoScope 6 software.
The Holidays got the best of me.