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Digital and analog power supply and ground

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saurabh17g

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I m constructing an eval board for AD9833. They have mentioned that there are pins VDD and DVDD and corrosponding AGND and DGND.
So do i have to build two power supplies for VDD and DVDD ?
And if i have to do so, are the specifications of both power supplies same?
I mean current requirement etc.(voltage requirement is 5V)
Please refer to the diagram 14 given in the datasheet attached
 

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Dear saurabh17q.
you have fantastic name!
I didn't find DVDD in datasheet.
if you want to have two separate VCC :DVCC & AVCC you can use a 1n4148 in way of AVCC .
before diode is ANALOG ,after diode is DIGITAL.
I test it for special perpose and it worked successfully.
 
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