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IVX's latest activity
IVX
replied to the thread
E1DA Cosmos ADC
.
THD+N gets about 1db better at 49MHz. I didn't notice a big dependency of THD vs temperature.
Monday at 11:45 PM
IVX
replied to the thread
E1DA Cosmos ADC
.
Before buying a reel of ES9039Q2M I decided to test 5pcs chips with the particular date code(not the same that I used for protos). The...
Apr 13, 2024
IVX
replied to the thread
E1DA Cosmos ADC
.
looks like Aliexpress changed something and Sunny can't sell over there some stuff anymore, please ask her for more details and how to...
Apr 11, 2024
IVX
replied to the thread
E1DA Cosmos ADC
.
I asked Sunny to write down an explanation for that situation because I also have no idea why it happened.
Apr 11, 2024
IVX
replied to the thread
E1DA Cosmos ADC
.
sseppala, this happens only with the German internet. Try please VPN.
Apr 11, 2024
IVX
replied to the thread
E1DA Cosmos ADC
.
sorry, no. I still working single.
Apr 9, 2024
IVX
replied to the thread
Review and Measurements of E1DA 9038S BAL Portable DAC & Amp
.
I just tested 9039S 1000; 100; and 50Hz with AP SYS2522 and I got -119.3db; -118.5db and -117.3db. SYS2522 loopback has 118.4db; 116.7db...
Apr 6, 2024
IVX
replied to the thread
Review and Measurements of E1DA 9038S BAL Portable DAC & Amp
.
It seems not dither is a matter but REW gen itself. Usually, I use another sine gen but today I run REw's one and got THD -146db on the...
Apr 4, 2024
IVX
replied to the thread
Review and Measurements of E1DA 9038S BAL Portable DAC & Amp
.
well, I guess no, 24-32 bits isn't large dither and isn't high-frequency at all because it is applied before the interpolator.
Apr 4, 2024
IVX
replied to the thread
Review and Measurements of E1DA 9038S BAL Portable DAC & Amp
.
yeah, hard to say.
Apr 4, 2024
IVX
replied to the thread
Review and Measurements of E1DA 9038S BAL Portable DAC & Amp
.
It is interesting that adding a 32b dither improves the THD for a couple of db more.
Apr 4, 2024
IVX
replied to the thread
Review and Measurements of E1DA 9038S BAL Portable DAC & Amp
.
a short video about 9039S as a sine source:
Apr 1, 2024
IVX
replied to the thread
SMSL DO300 DAC Review
.
the keyword isn't "alien" but "ideal analyzer", the analyzer with zero residual distortions and noise.
Mar 28, 2024
IVX
replied to the thread
SMSL DO300 DAC Review
.
I'm an ordinary chinese worker. Aliens nowadays look like that https://en.wikipedia.org/wiki/Grigori_Perelman
Mar 28, 2024
IVX
replied to the thread
SMSL DO300 DAC Review
.
i.e. if imagine that aliens give you an ideal analyzer, the DAC rather has THD+N <-129db@1k, unlike AP showing that, and all other top...
Mar 28, 2024
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