DIY USB isolator

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marce

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Joined 2007
One quick point, lay your pi filters out like mine, the signal must pass through the capacitor and not branch off, this again is an important detail. The caps should be next to the ferrite and the signal pass directly through them before going anywhere else.
 
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kinku

Member
Joined 2013
Here is the board, Not sure if I followed all the rules. Marc does it look close to what it should be?
 

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marce

Member
Joined 2007
Sorry for the very late reply, I avoided my computer for a few days and got so many Diyaudio notifications I deleted the lot and this got lost in the process.
The layout looks OK, apart from the separate %v, the trace going round the board negates the isolation, if you put the 5V input connector at the top, you wouldn't have to have that track going round the board.
Again apologies for the late reply...
 
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kinku

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Joined 2013
Hi Glad to see you guys are still interested in pursuing it. I have not made the Board.But if anyone is interested I am willing to send the PCB files. Remember though ADuM chip is limited to slow or full speed data rates. That means no sample rates above 96K and adaptive mode transfers
 
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ginetto61

Member
Joined 2009
kinku said:
Hi Glad to see you guys are still interested in pursuing it.
I have not made the Board. But if anyone is interested I am willing to send the PCB files. Remember though ADuM chip is limited to slow or full speed data rates.
That means no sample rates above 96K and adaptive mode transfers
Click to expand...

Hi and sorry to jump in with a question.
What would be the highest rez format allowed with a ADuM chip based isolator ?
I mean ... 24/96 will pass fine without glitches ?
Thanks a lot to you and all for the very interesting thread.
Kind regards, gino
 
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wwenze

Member
Joined 2008
ginetto61 said:
Hi and sorry to jump in with a question.
What would be the highest rez format allowed with a ADuM chip based isolator ?
I mean ... 24/96 will pass fine without glitches ?
Thanks a lot to you and all for the very interesting thread.
Kind regards, gino
Click to expand...

The question would be, whether the USB receiver is able to handle 24/96 while on 12mbps USB.

For example Tenor 7022 can
 
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ginetto61

Member
Joined 2009
wwenze said:
The question would be, whether the USB receiver is able to handle 24/96 while on 12mbps USB.
For example Tenor 7022 can
Click to expand...

Hi and thanks a lot for the very helpful reply.
I said 24/96 because i feel ashamed to say that i am still on redbook files :eek:
seriously almost all my collection of music is on cds and some converts on dvd 16/48.
I am not that much on high rez. I see that many isolator top at 12Mbit/s.
I guess the higher speed ones are very complex and so expensive.
Are you using any of these devices maybe ?
Thanks a lot again, gino
 
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