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single or dual digital isolator for dual mono cod ?
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schultzsch  
#1 Posted : Sunday, December 22, 2013 7:55:40 PM(UTC)
schultzsch

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Hello

first I want to ask if it makes sense to use dual 3.3V supply for digital Eh? (one for each board)

I have two ISO7240M isolators which I intend to use with two COD Dacs.It makes sense to use both?

if I use a single isolator for both boards from where do I get him powered on the dac side ?

thank you
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Russ White  
#2 Posted : Thursday, December 26, 2013 2:59:07 AM(UTC)
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You could - but I personally would not, unless they are physically far apart.
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schultzsch  
#3 Posted : Thursday, January 2, 2014 6:31:44 PM(UTC)
schultzsch

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Thank you Russ for your reply
still confused because I actually use separate power supplies(lipo battery) for each vd, after the isolator is installed I guess there will be no need for the second vd power supply right?
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Russ White  
#4 Posted : Friday, January 3, 2014 11:30:12 PM(UTC)
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Sure you could run both DACs, off one supply for VD.

That's the simplest solution, and I think you will find it works quite well, and you will have one less power synchronization to worry about. :)

Cheers!
Russ

Edited by user Monday, January 6, 2014 2:16:16 PM(UTC)  | Reason: Not specified
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schultzsch  
#5 Posted : Saturday, January 4, 2014 10:10:33 PM(UTC)
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thx again
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