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New FIFO buffer for RPI/SBCs

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#1,863
cdsgames said:
You can power the micro controller with 5 to 5.5V (and power the rest of the system from that power) and it will create dual rail 15V OR you can input your own 15V (like LPS)


You can power the ess HAT separately at 5-5.5V max


You can power the RPI separately from the above.
Click to expand...

How much power does the 3 board stack require , 1A ? I would guess that the most common configuration will be 2 power supplies , 1 for the pi and another for the hat stack, should both be high quality; how well is the stack isolated from noise from the pi ?
 
#1,866
chris14 said:
How much power does the 3 board stack require , 1A ? I would guess that the most common configuration will be 2 power supplies , 1 for the pi and another for the hat stack, should both be high quality; how well is the stack isolated from noise from the pi ?
Click to expand...


About 0.9A



We are testing with 2 PSUs and we arrived at THD+N of -112. (to answer how well its isolated)


Of course if desired , we have a isolator that could be used (and it was tested). We see no difference in THD+N using isolator but keep in mind that A. We are at the limits of our AP machine B. THD+N numbers doesn't tell the whole story on how you perceive sound .
 
#1,875
Katana for PC?

I'm in a situation where I am deciding whether or not to use a [quality] RCA splitter out of my current DAC (Schiit Modi Multibit) or consider a DIY solution. I also have a RPi3 with Hifiberry DAC+ Pro for streaming, but my next setup might just use my PC for everything (both headphone amp and stereo receiver).

So, I'm wondering if anyone here has had any experience with splitting signal out directly out of the DAC? And, is it possible to leverage the Katana as an external DAC for PC?

Thanks in advance!
 
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