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TCA6408A: IBIS model

Anitha P Mathew
Prodigy 100 points
Part Number: TCA6408A

Hi,

Could you please provide the IBIS model for TCA6408ARSVR?

Thanks

  • 0
    TI__Mastermind 23456 points

    Hello Anitha,

    I think you missed the link in the TCA6408A product page.  If you look under the "Tool & software" tab the Ibis model is there.  Let me know if there is something wrong with it. 

    -Francis Houde

  • 0 in reply to fhoude
    Prodigy 100 points
    Hi,
    We downloaded the IBIS model from there. But we need UQFN-16 package.

    And also please clarify below mentioned query.
    In IBIS model, Vinl and Vinh value are different from Datasheet.
    Can you please make sure why these difference from Datasheet to IBIS model.

    Supply Voltage : 1.8V

    Vinl and Vinh values as follow:

    Parameter -> From Datasheet From IBIS model
    Vin low -> VCC*0.3 = 0.54V 0.495V
    Vin high -> VCC*0.7 = 1.26V 1.365

    Regards
    Anitha
  • 0 in reply to Anitha P Mathew
    TI__Mastermind 23456 points
    Hello Anitha,
    The Ibis models are not package dependent.

    I am a bit confused about what you show for Vin low and Vin high. Are you saying these are what is seen in the Ibis model or what is stated in the datasheet. Can you help clarify what I need to be checking in the model compared to the datasheet?
    -Francis
  • 0 in reply to fhoude
    Prodigy 100 points

    Hi,

    Here I attaching the snapshot from IBIS model where Vinl and Vinh values are mentioned for supply voltage 1.8V.

    Snapshot from datasheet

    Thanks

    Anitha

  • 0 in reply to Anitha P Mathew
    TI__Guru 62920 points
    Hi Anitha,

    The VINL and VINH values in the IBIS model were set to their worst-case values considering variation in VCC. For 1.8-V operation, the minimum recommended VCC level is 1.65 V. This gives a VINL of 0.3 * 1.65 V = 0.495 V. Accounting for the same amount of variation on the high side would mean that VCC could be as large as 1.95 V. This gives a VINH of 0.7 * 1.95 V = 1.365 V. If you know that a particular voltage will always be used, you could modify these VINL/VINH values to match the corresponding threshold levels.

    Regards,
    Max
  • 0 in reply to Miguel Robertson
    Prodigy 100 points

    Thanks for your support