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What makes a DAC silent (and good) ?
What makes a DAC silent (and good) ?
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Old 15th December 2016, 09:20 PM   #1
JonBocani is offline JonBocani  Canada
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What makes a DAC silent (and good) ?
Question What makes a DAC silent (and good) ?

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...

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Old 15th December 2016, 09:35 PM   #2
billshurv is offline billshurv  United Kingdom
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What makes a DAC silent (and good) ?
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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Old 16th December 2016, 09:37 AM   #3
DF96 is offline DF96  England
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The design and the implementation i.e. the engineering. Recipes are for cooks.
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Old 17th December 2016, 05:54 PM   #4
Eldam is offline Eldam  France
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Old 17th December 2016, 06:47 PM   #5
korpberget is offline korpberget  Norway
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a hammer
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Old 17th December 2016, 06:48 PM   #6
korpberget is offline korpberget  Norway
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kidding
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Old 17th December 2016, 08:15 PM   #7
jan.didden is offline jan.didden  Europe
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Quote:
Originally Posted by korpberget View Post
a hammer
It is called 'widlarizing' after Bob Widlar who actually used a hammer to silence an IC.

Jan
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Old 18th December 2016, 11:15 AM   #8
Eldam is offline Eldam  France
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a hammer
...Time to buy a Thor Dac
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Old 18th December 2016, 12:32 PM   #9
abraxalito is online now abraxalito  United Kingdom
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Quote:
Originally Posted by JonBocani View Post
Is it the CHIP ?
is it the POWER SUPPLY ?
is it the OUTPUT STAGE ?
All of the above.

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Old 18th December 2016, 05:06 PM   #10
marce is offline marce  United Kingdom
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Layout as well as the above...
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