• State Resolved
  • Locked Locked
  • Replies 2 replies
  • Subscribers 16 subscribers
  • Views 374 views
  • Users 0 members are here
Support feedback
Options
Options
Related

This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

TS3A27518E: S-parameter model in forum does not match the datasheet

William Rundle
Prodigy 40 points
Part Number: TS3A27518E


TS3A27518E S-Parameter model TS3A27518E_sParameters_25C.S2P does not simulate as the datasheet suggests it should.  There is significant signal degradation at 100MHz.  The datasheet says it has typical 4 ohm on resistance, and a bandwidth of 240MHz.  Can someone verify the S-params match this device?

  • +1
    TI__Genius 10552 points

    Hi William,

    Out of curiosity, where did you find the model? Is it from this post? I'm not sure how this was generated 7 years ago so I reran a S-parameter model file we have that should give a better approximation of the device behavior. Please see the attached and let me know if this helps. 

     TS3A27518E_25C.zip

    Regards,

    Alex

  • 0 in reply to Alex Vish
    Prodigy 40 points

    Hi Alex,

    Thanks for taking a look at this.  I tried to cancel my comment, but apparently, it still stayed on the forum. 

    The original file is from the forum on the TI website.  There are a couple of options to run within this model.  Only one includes a serial pass through.  I was running the wrong one that doesn't have that, which is why my results looked so horrible.  So I was ultimately able to get my sim to result in what I would expect from this device.  I will still try out this new model to see if there are any interesting differences.  

    Thanks,

    Bill