TCAN3413: IBS model fails parser check, Part TCAN3413DR

Hi Joseph,

Today is a holiday. Please give some time for some feedback, thanks.

Best Regards,

Michael.

Hi Joseph,

I have followed up with the design team in parallel and waiting their feedback.

In the meantime, could you help confirm if any concerns with TCAN33X IBIS Model? Thanks.

Best Regards,

Michael.

Michael. There are multiple failures of the IBS model when using the committee parser and the Hyperlynx parser. These are the errors. Note where it says ERRORS below. 

IBISCHK7 V7.2.0

NOTE (line 122) - Pulldown Minimum data is non-monotonic
NOTE (line 123) - Pulldown Typical data is non-monotonic
WARNING - Model canH: C_comp should not be specified when C_comp_pullup, C_comp_pulldown, C_comp_power_clamp or C_comp_gnd_clamp is specified
WARNING - Model 'canH': Vmeas timing test load parameter should be specified
NOTE (line 772) - Pulldown Minimum data is non-monotonic
NOTE (line 845) - Pullup Minimum data is non-monotonic
WARNING - Model canL: C_comp should not be specified when C_comp_pullup, C_comp_pulldown, C_comp_power_clamp or C_comp_gnd_clamp is specified
WARNING - Model 'canL': Vmeas timing test load parameter should be specified
NOTE - Combined Pulldown for Model: canL Minimum data is non-monotonic based on piece-wise linear interpolation
NOTE - Combined Pullup for Model: canL Minimum data is non-monotonic based on piece-wise linear interpolation
NOTE - Combined Pulldown for Model: canH Typical data is non-monotonic based on piece-wise linear interpolation
WARNING - Model canH: The [Rising Waveform]
with [R_fixture]=30 Ohms and [V_fixture]=3.3V
has TYP column DC endpoints of 2.80V and 3.27v, but
an equivalent load applied to the model's I-V tables yields
different voltages ( 2.80V and 3.30V),
a difference of 0.00% and 5.75%, respectively.
WARNING - Model canH: The [Falling Waveform]
with [R_fixture]=30 Ohms and [V_fixture]=0V
has TYP column DC endpoints of 0.38V and 2.70v, but
an equivalent load applied to the model's I-V tables yields
different voltages ( 0.38V and 2.75V),
a difference of 0.05% and 2.23%, respectively.
NOTE - Combined Pulldown for Model: canH Minimum data is non-monotonic based on piece-wise linear interpolation
ERROR - Model canH: The [Falling Waveform]
with [R_fixture]=30 Ohms and [V_fixture_min]=0V
has MIN column DC endpoints of 0.12V and 1.93v, but
an equivalent load applied to the model's I-V tables yields
different voltages ( 0.11V and 2.15V),
a difference of 0.17% and 10.87%, respectively.
WARNING - Model canH: The [Rising Waveform]
with [R_fixture]=30 Ohms and [V_fixture_max]=0V
has MAX column DC endpoints of 0.95V and 3.27v, but
an equivalent load applied to the model's I-V tables yields
different voltages ( 0.95V and 3.22V),
a difference of 0.06% and 2.16%, respectively.
ERROR -
Component 'TCAN': Diff_Pin 'CANL' not previously declared in Pin section.
ERROR -
Component 'TCAN': inv_pin 'CANH' not previously declared in Pin section.

Errors : 3
Warnings: 7

File Failed

Hi Joseph,

Yes, the IBIS model I shared is for a different model. Or are you implying both models give the same errors?

Best Regards,

Michael. 

Hello:

There is only one IBS file that I am focusing on, that is TI File "SLLM508.zip" which contains the compressed IBS file "tcan34xx.ibs". This is the only file I'm interested in, and the only file I've written about in this case. Perhaps you are referring to the IBS checker report, which I repeated, since I was not sure we are fully communicating. I submitted this case one week ago, have you heard from those responsible, as to whether they also get IBS parser checking errors, or are working to fix this?

Hi Joseph,

I have followed up internally to resolve your "tcan34xx.ibs" concerns.

However, I would recommended to use this different TCAN33X IBIS Model for now until the 34x model is resolved, thanks.

Best Regards,

Michael.