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how to connect two gnd signals ?

autodeskguest

Hello everyone ! I made a two layer pcb in which there are analog & digital

ics so , I made two gnd signals naming AGND & GND . Now I want to connect

these two signals at only at the gnd pin of power connector. When I tried to

naming these signals in Eagle I can give only one name to that net  , But

don't want That ? I want separate signals.

 

 

 

  • Hemant wrote:

    Hello everyone ! I made a two layer pcb in which there are analog &

    digital ics so , I made two gnd signals naming AGND & GND . Now I

    want to connect these two signals at only at the gnd pin of power

    connector. When I tried to naming these signals in Eagle I can give

    only one name to that net  , But don't want That ? I want separate

    signals.

     

    I've handled this by creating a library part with two pins in the schematic

    symbol.  For the footprint, I place two pads on top of each other (either

    SMT or through-hole).

     

    You can use this part in your schematic, connecting AGND to one pin and GND

    to the other pin.  In the layout, you will neatly get the pad with an air

    wire to both AGND and GND, but no other air wires between AGND and GND.

     

    Of course, DRC will complain loudly about the overlapping pads.  I always

    look through the list of errors, and ignore the ones relating to the

    overlapping pads.

     

    Regards,

     

    Bert Menkveld

     

     

     

  • "Hemant" <mhamalhemant@gmail.com> wrote in message

    news:g0bfim$kn$1@cheetah.cadsoft.de...

    Hello everyone ! I made a two layer pcb in which there are analog &

    digital ics so , I made two gnd signals naming AGND & GND . Now I want to

    connect these two signals at only at the gnd pin of power connector. When

    I tried to naming these signals in Eagle I can give only one name to that

    net  , But don't want That ? I want separate signals.

     

    GND

    GND@1

    GND@2

    GND@3

     

    and so forth.

     

     

     

  • On Tue, 13 May 2008 Aly wrote saying :

     

    GND

    GND@1

    GND@2

    GND@3

     

    and so forth.

     

    Unless I'm mistaken, that is the answer to almost exactly the opposite

    question to what was asked!

     

    (For the real question I use the same method as Bert Menkveld)

    --

    Rob Pearce                       http://www.bdt-home.demon.co.uk

     

    The contents of this | Windows NT crashed.

    message are purely   | I am the Blue Screen of Death.

    my opinion. Don't    | No one hears your screams.

    believe a word.      |

     

  • "Robert Pearce" <news@bdt-home.demon.co.uk> wrote in message

    news:cLgZs57kAILIFwAF@daniel.huneausware.local...

     

    Unless I'm mistaken, that is the answer to almost exactly the opposite

    question to what was asked!

     

     

    You'll get over it!

     

    All information is relavant.  image

     

     

     

  • Greetings Aly,

     

      on Sun, 18 May 2008 you wrote saying :

     

    All information is relavant.  image

     

    Umm.... No. Simply not true.

     

     

     

    Besides, when a "newbie" asks a question, answering the WRONG question

    without giving additional context can only lead to confusion. That's why

    I commented. It seems to me that it's also bad netiquette, as it might

    suggest you didn't bother to read the OP's question.

    --

    Rob Pearce                       http://www.bdt-home.demon.co.uk

     

    The contents of this | Windows NT crashed.

    message are purely   | I am the Blue Screen of Death.

    my opinion. Don't    | No one hears your screams.

    believe a word.      |