How to accelerate the simulation with the Transceiver HSPICE model

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But i need simulate a low frequency signal (about 100Kbps)

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Why would you try using the transceiver at such a low frequency?

If the signal is AC coupled, then it probably will not even work.

Describe what you are trying to do, and members on this forum can provide constructive feedback. Perhaps an alternative solution would be more appropriate.

Cheers,

Dave

At first, thanks for your reply.

In fact, i want to simulate a Displayport. Now, i geted this transceiver model (Tx and Rx) but i didn't find a DP cable Hspice model (or S-parameter). I had a I2C bus model. Before i get the DP cable model, i want to find how this transceiver model works with my I2C bus. That's the reason why at such a low frequency. I tried to simulate a signal (2MHz) during 6us, it took about 25 hours.

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i want to find how this transceiver model works with my I2C bus

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I2C is not used over transceiver channels, its used over I/O pins.

Your simulations for the transceiver channels should be performed at the data rate of the DisplayPort, i.e., 1.62, 2.7, or 5.4 Gbps.

Your simulations of the I2C bus should just use IBIS models for the regular I/O. However, I2C is so slow, that its hardly worth simulating in HSPICE. If you follow good PCB layout techniques, your I2C interface will work fine.

Cheers,

Dave

I agree with you. It's just because i have not find a Displayport cable model (IBIS/S-parameters/Spice), i try to find what'll be happen if i simulate it with a I2C bus. So when i find the simulation takes a long time with a low frequency signal, i think it's because i don't use this model correctly.

By the way, do you konw where i can find a DP cable model as IBIS/S-parameters/Spice ?

Thanks again.

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So when i find the simulation takes a long time with a low frequency signal, i think it's because i don't use this model correctly.

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And you are correct. The simulation is for designing high-speed signals. The time required to simulate multiple bit transitions of a Gbps signal is significantly shorter than that required to calculate kbps signals ... a million times faster ....

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By the way, do you konw where i can find a DP cable model as IBIS/S-parameters/Spice ?

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Try vendor web sites, eg., Tyco, Molex, etc., or contact a distributor FAE and ask.

Cheers,

Dave