Home > Community > Forums > PCB Design > Using Orcad SIGNAL_MODEL attribute

Email

* Required Fields

Recipients email * (separate multiple addresses with commas)

Your name *

Your email *

Message *

Contact Us

* Required Fields
First Name *

Last Name *

Email *

Company / Institution *

Comments: *

 Using Orcad SIGNAL_MODEL attribute 

Last post Wed, Mar 16 2005 6:35 AM by archive. 5 replies.
Started by archive 16 Mar 2005 06:35 AM. Topic has 5 replies and 1052 views
Page 1 of 1 (6 items)
Sort Posts:
  • Wed, Mar 16 2005 6:35 AM

    • archive
    • Top 75 Contributor
    • Joined on Fri, Jul 4 2008
    • Posts 88
    • Points 4,930
    Using Orcad SIGNAL_MODEL attribute Reply

    Hi,

    We want to set up our Allegro Design Entry(Orcad) libraries so that when forward annotating to Allegro SI (Specctraquest), all parts come with an IBIS and Espice model automatically attached. It is a real hassle to have to manually attach them each time you create a .brd file
    I have tried using the SIGNAL_MODEL = attribute in Orcad, in conjunction with a Specctraquest .dml library containing suitably named parts, but with no joy

    Anybody got any ideas on how to set this up?


    Originally posted in cdnusers.org by jdunn
    • Post Points: 0
  • Fri, Mar 18 2005 8:24 AM

    • archive
    • Top 75 Contributor
    • Joined on Fri, Jul 4 2008
    • Posts 88
    • Points 4,930
    RE: Using Orcad SIGNAL_MODEL attribute Reply

    Jdunn,

    You might receive more prompt replies for your OrCAD issues on the orcad community site at http://www.orcad.com

    Moderator


    Originally posted in cdnusers.org by Moderator
    • Post Points: 0
  • Tue, Mar 22 2005 6:53 AM

    • archive
    • Top 75 Contributor
    • Joined on Fri, Jul 4 2008
    • Posts 88
    • Points 4,930
    RE: Using Orcad SIGNAL_MODEL attribute Reply

    Hi,

    I can get this to work by doing the following
    1. Translate the ibis model into dml format using PCB SI or SignalXplorer
    2. In Allegro Design Entry CIS (Capture CIS) you add the model name to the part using the SIGNAL_MODEL property.
    e.g., from the attached ibis model you can reference the model names ALVC244_DGW, ALVC244_DW, ALVC244_NS or ALVC244_PW depending on the package type.
    3. During the Tools, Create Netlist you need to go into setup, edit and add the following line to the [ComponentInstanceProps] section
    SIGNAL_MODEL=YES

    Now you can create the netlist and the model will be attached to the component providing your paths points to the libraries.


    Best regards,
    Ole Ejlersen
    Technical Service Manager
    Nordcad Systems A/S


    Originally posted in cdnusers.org by ejlersen
    • Post Points: 0
  • Tue, Mar 22 2005 6:59 AM

    • archive
    • Top 75 Contributor
    • Joined on Fri, Jul 4 2008
    • Posts 88
    • Points 4,930
    RE: Using Orcad SIGNAL_MODEL attribute Reply

    Thank you

    This works just fine now.


    Originally posted in cdnusers.org by jdunn
    • Post Points: 0
  • Tue, Mar 29 2005 3:04 AM

    • archive
    • Top 75 Contributor
    • Joined on Fri, Jul 4 2008
    • Posts 88
    • Points 4,930
    RE: Using Orcad SIGNAL_MODEL attribute Reply

    Hi,

    You're welcome, did you get it to select the correct voltage model also? If so, how?


    Originally posted in cdnusers.org by ejlersen
    • Post Points: 0
  • Tue, Mar 29 2005 3:13 AM

    • archive
    • Top 75 Contributor
    • Joined on Fri, Jul 4 2008
    • Posts 88
    • Points 4,930
    RE: Using Orcad SIGNAL_MODEL attribute Reply

    No, I am just working to get a load of Espice models of passives added at the moment so I don't need to select different ibis driver models according to voltage (just yet)


    Originally posted in cdnusers.org by jdunn
    • Post Points: 0
Page 1 of 1 (6 items)
Sort Posts:
Started by archive at 16 Mar 2005 06:35 AM. Topic has 5 replies.