Is this using the internal SPDIF reciever inside the ES9018 or something else?
I recall reading somewhere that the ES9018 reciever was not great.
found this on the topic http://www.diyaudio.com/forums/digital-line-level/208452-buffer-spdif-input-stage-ess9018-3.html
I recall reading somewhere that the ES9018 reciever was not great.
found this on the topic http://www.diyaudio.com/forums/digital-line-level/208452-buffer-spdif-input-stage-ess9018-3.html
Pardon my intrusion, but those pretty looking ROE gold capacitors are "slow" sounding when used in analog cirucits. They are also ancient and long discontinued and probably dried out. If they power any of the digital parts on this board I think they would be a bad choice becuase their long body and leads are probably picking up noise. OSCON SEPC would be much better here. You can buy them at RS these days, and they dont cost much.
My suspicion is that putting that DAC in a shielded chassis may help your situation.
My suspicion is that putting that DAC in a shielded chassis may help your situation.
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I noticed, but I bought it because it was just called it an excellent product
Panasonic DMP-BDT500 Blu-ray player review - Blu-ray Players
I had not seen this !!!
tonight I measure again, I hope that was not caused by my mistake with the oscilloscope
@ erin
- I tried to convert the SPDIF in I2S using a card with additional WM8804 without solving
- invaluable advice, will be one of the next things I'll do
- OT - because after writing and sent to the forum, spends a lot of time before you see the answer ??
@scopeboy
as I imagined I must have done something during the measurement to generate that error,
I repeated four times without there being the same view
is not this the reason for the interruption in the audio signal
🙁 🙁 🙁 🙁
as I imagined I must have done something during the measurement to generate that error,
I repeated four times without there being the same view
is not this the reason for the interruption in the audio signal
🙁 🙁 🙁 🙁
I believe not be exceptional, but for now I would like to first solve the problem without making changes
Tomorrow I will try to shield the card with a metal roof, hoping that something changes
http://www.diyaudio.com/forums/digital-source/214871-open-source-cdrom-controller-soft-stuff.html
.. if you want to have the all CD player facilities ...
@erin
Unfortunately not!
I covered with the carcass of an old CDrom
is connected to the ground of the supply
right in photo
same result .......
@marce
the CDrom is powered (+5V +12V) with two stepdown 2A with LM2596S with added 4 4700uF capacitors, checking with the oscilloscope will not notice noise or fluctuations
I'm going crazy !!!
Unfortunately not!
I covered with the carcass of an old CDrom
is connected to the ground of the supply
An externally hosted image should be here but it was not working when we last tested it.
right in photo
same result .......
@marce
the CDrom is powered (+5V +12V) with two stepdown 2A with LM2596S with added 4 4700uF capacitors, checking with the oscilloscope will not notice noise or fluctuations
I'm going crazy !!!
I was just reading the specs of Toslink modules and those seem to take TTL directly. For simplicity I think I'll do Toslink instead of coax.
The noise on the flat sections of the square wave is either high frequency noise on the supplies or being picked up by either the scope probe or some of the system wiring, you get this during EMC tests when the electronics are not screened properly or during conducted susceptibility.
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