[PCB_FORUM] Re: DGND/AGND merge point
- From: "richard moffat" <richard.moffat@xxxxxxxxxxxxxxxxxxx>
- To: <icu-pcb-forum@xxxxxxxxxxxxx>
- Date: Fri, 22 Apr 2005 08:25:27 +1200
I'd better clarify this a bit: we use this method for connecting
chassis ground to digital on a product with a metal case. You obviously
wouldn't want to do this with sensitive audio circuits, in which case I
would recommend a zero ohm resistor.
>>> richard.moffat@xxxxxxxxxxxxxxxxxxx 22/04/2005 7:48:31 a.m. >>>
Quite often, the board in question will have connectors with a metal
shield of more than one shield pin.
Therefore you can make one of these pins AGND and the rest DGND in the
schematic. It is a very safe and "legal" way.
>>> william.billereau@xxxxxxx 21/04/2005 8:32:53 p.m. >>>
Hello All.
Quite often, a board contains both AGND and DGND and the customer asks
us to connect them together on a single point on the board, like GND pin
of a connector.
Does anybody know how to do it in Allegro without generating DRCs
errors?
Thanks in advance.
William.
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