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ADAU1761 grounding

Question asked by bootload on Sep 20, 2010
Latest reply on Sep 13, 2011 by BrettG

From the data sheet I read:

 

NOTES
1. THE EXPOSED PAD IS CONNECTED INTERNALLY TO THE
   ADAU1761 GROUNDS. FOR INCREASED RELIABILITY OF THE
   SOLDER JOINTS AND MAXIMUM THERMAL CAPABILITY, IT IS
   RECOMMENDED THAT THE PAD BE SOLDERED TO THE
   GROUND PLANE.

 

I am planning to have a split ground plane. I would typically tie the the DGND

and AGND together at one point (through a low ohm resistor). Is the data sheet

saying that the two AGNDs and the DGND are tied internally to the exposed pad?

It was my intent to have the copper rectangles under the device tied to AGND plane

and then have the DGND connection go to the single connection point. Would this

create a ground loop?

 

Thanks

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