What makes a DAC silent (and good) ?

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JonBocani

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Joined 2015
I'm sorry for the newbie question, but it seems that nobody really agrees on that...

Is it the CHIP ?
is it the POWER SUPPLY ?
is it the OUTPUT STAGE ?

...the recipe of all that ?

I'm more of a DIY-speaker person and knows little about DIY electronics, but i'm curious to have your comments about that...

:trapper:
 
billshurv

billshurv

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Joined 2014
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I would say the PCB has a lot to do with it. Back when I were still an undergrad and digital were still newfangled App notes said minimum 4 layers preferably 6 for 16 bit precision*. These days there is a lot of skimping on layer count in DACs to keep cost down. In mixed signal design the PCB is vital.

This is a good read NwAvGuy old but good, whatever your views on the MIA NwAvGuy.

* yeah I know that 16 bit wrt audio and 16 bit wrt precision analog are different fish, but to get close to SOTA (which these days is 20bit ENOB area) you need a very good layout.
 
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