AWG in Rigol DHO900S

[TimFox]

I can't find the answer to this in the documentation I just downloaded.
What is the output impedance (source impedance) of the AWG output?
What are the limitations on load impedance for that output?
(Specifically, can it drive 50 ohms?)

[Martin72]

Hi,

In the data sheet of the MSO5000, for example, the amplitude of the built-in AWG at 50Ohm and Hi-Z is explicitly described, if it is missing in the data sheet of the DHO900(S), I would first assume that the output is only "Hi-Z".
We do not know until a DHO900S owner has measured the output.
Otherwise, ask Rigol directly.

[TurboTom]

I'm pretty certain it's 50 Ohms like basically all signal generators. There was a post on the forum (most probably in the "Rigol's New DHO800 Oscilloscope unbox & teardown" thread) that I don't find anymore where two photos of the AWG section were published (basically only a D/A coverter, reconstruction filter and some OPAMPs, PSUs, attenuation and protection circuitry -- the "heavy weight lifting" appears to be handled in the Zynq). Sorry to the owner of the photos whom I cannot give proper credit here (would have posted a link if I had found the message again). But anyway, here are the photos. They clearly show four 49.9 Ohms resistors (two Top and two Bottom-side poulated) which is a dead-hint that it's impedance indeed is 50 Ohms.

[Mechatrommer]

Sorry to the owner of the photos whom I cannot give proper credit here (would have posted a link if I had found the message again).

credit and many thanks to souldevelop... https://www.eevblog.com/forum/testgear/rigols-new-dho800-oscilloscope-unbox-teardown/msg5051812/#msg5051812