I'm not sure I do understand the problem.Has anyone else seen this with ESS DAC chips?
But I can state the Cosmos ADC with selected brickwall filter (Linear Phase Apodizing) is perfect in not allowing any aliases to come through (100dB attenuation).
Whatever is in the spectrum it is coming from the DUT alone.
Okay. Here is what a google search gives:
https://www.google.com/search?q="A&...mAIAoAIAmAMAiAYBkgcAoAct&sclient=gws-wiz-serp
Which one would you like people to use?
https://www.google.com/search?q="A&...mAIAoAIAmAMAiAYBkgcAoAct&sclient=gws-wiz-serp
Which one would you like people to use?
OK, that's the best one. What is distortion for an average one?BTW, yesterday I selected one of the best THD 9039S from 20pcs units, the result looks like that:
If we want to use this as a low THD signal generator, would it be possible to order one with guaranteed lowest THD?
nearly all units have at least one channel with all harmonics <=-150db with MCLK 24MHz @96kHz of Fs.
For example, I keeping 2 more samples selected yesterday, they are worse than the best one for the THD but a bit better for THD+N, or one channel worse THD etc. Not too much different. Anyway, I recommend to recalibrate the DAC with APU on your side. THD+N is more stable, all 20 samples tested have it from -125.5-126.1db.
For example, I keeping 2 more samples selected yesterday, they are worse than the best one for the THD but a bit better for THD+N, or one channel worse THD etc. Not too much different. Anyway, I recommend to recalibrate the DAC with APU on your side. THD+N is more stable, all 20 samples tested have it from -125.5-126.1db.
We've had the discussion about how an integrated DAC / ADC Cosmos combo with a common clock would be great for doing correlated analysis. How about a common supply voltage and above all, a common voltage reference? I haven't checked what kind of references ES9822 and ES9039S take, but if there was a way to use a common reference, this should greatly enhance LF S/N for analysis of analog circuits.
I don't think so.a common reference, this should greatly enhance LF S/N for analysis of analog circuits.
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