ibis model ds90lv804tsq

pietro vergine

Other Parts Discussed in Thread: DS15BR400

Hi,

is there any newer version of ds90lv804tsq ibis model ? The one I downloaded is version 3.2 of 2006 and I think has some problems with the characterization (look the attached pictures for rising and falling edge.

Thanks

Pietro

over 10 years ago

0 ShreyasRao over 10 years ago

TI__Guru 63390 points

hi pietro,

I will move your post into high speed interface forum for better support.

0 Lee Sledjeski over 10 years ago

TI__Mastermind 43795 points

Hi Pietro,

You have the latest model. Have you been able to run any simple simulations looking at the differential output?

Regards,

Lee

0 pietro vergine over 10 years ago in reply to Lee Sledjeski

Prodigy 60 points

Hi Lee,

yes I'm able to run simulation: the point is the waveforms are really bad even just using a driver with a balanced load

Pietro

0 Lee Sledjeski over 10 years ago in reply to pietro vergine

TI__Mastermind 43795 points

Hi Pietro,
I looked through some similar designs. The DS15BR400 is a slightly newer IBIS model. This IBIS model has better control of the output edges. Please give this one a try. I will work to get the 804 model updated to better represent the actual device performance.
www.ti.com/.../toolssoftwareRegards,Lee

0 pietro vergine over 10 years ago in reply to Lee Sledjeski

Prodigy 60 points

Hi Lee,
results look definitely better. The levels are a bit different but the signal is cleaner. It doesn't solve my issue but at least let me focus on the interconnections with a better model.

Definitely the ds90lv804tsq is bad.

Thanks
Pietro

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ibis model ds90lv804tsq