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SN65LVDS389 IBIS Model Issue

Tim Love
Expert 5340 points
Other Parts Discussed in Thread: SN65LVDS389, SN75LVDS389

Hello Team,

We have received feedback about the IBIS model from one of our customers. Please see below. I have seen other posts concerning the IBIS model for this part. At the time it was showing no updates were planned. Is this still the case? 

I was doing a Hyperlynx simulation with an LVDS389 IBIS file and the outputs didn't seem right.  So, I tried the LVDS391 instead and they seemed closer to expected.  I looked at the files and found that the 391 has been revised to fix a "common mode bug" but the 391 doesn't have this update.  Can someone update this and send me a new file and post on you website.


Regards,

Tim Love

  • 0
    TI__Mastermind 20050 points

    Hi Tim,

    I've looked at both the LVD389 and LVD391, and they both have the common mode bug fix. Is your customer using an old download from before 2002 for the LVD389?

    |***************************************************************************
    |                 Texas Instruments Incorporated
    |                   Data Transmissions Products
    |                    IBIS Model for SN65LVDS389
    |                        38DBT TSSOP Package
    |***************************************************************************
    |
    [IBIS Ver]      2.1
    [Comment char]                          |_char
    [File name]     lvds389.ibs  
    [File Rev]      1.0
    [Date]          12Jan00
    [Source]        File originated at Texas Instruments Incorporated.
                    Data Transmission Products Group.
     
    [Notes]         Model revved in Nov02 to fix common-mode bug  -TMF-     

    Regards,

    David

    Webench Design Center

  • 0 in reply to David Larkin
    TI__Expert 5340 points

    David,

    Looks like the customer has resolved this now:

    I was looking at the SN75LVDS389 but the models are the same for the SN65LVDS389 and the SN75LVDS389.  I got the IBIS off the TI website last week and it was dated 4/16/02 but it’s dated different today.  Looks okay.  Thanks.

    Please consider this closed.

    Regards,

    Tim