How to simulate a huge mixed signal circuit?

• Jun 11, 2007

• #1

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huanchou

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Dear all

I would like to simulate one huge ( analog+digital) circuit,
but it will take many time to do that in HSPICE.
I have tried Hsim, but it still take many time.
Does any one has the good idea or good tool to do the job?
How do you to simuilate when you meet a huge circuit and integrate all of sub-blocks?

 

• Jun 13, 2007

• #2

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sriramachandra

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Do you have eldo with u ....
if so i can guide u

 

• Jun 14, 2007

• #3

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wmbasslake

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huanchou said:

Dear all

I would like to simulate one huge ( analog+digital) circuit,
but it will take many time to do that in HSPICE.
I have tried Hsim, but it still take many time.
Does any one has the good idea or good tool to do the job?
How do you to simuilate when you meet a huge circuit and integrate all of sub-blocks?

Click to expand...

Set option for different subciruit: more accuracy for analog and less accuracy for digial

 

• Jun 15, 2007

• #4

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pfd001

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spectreVerilog is a good choice

 

• Jun 15, 2007

• #5

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020170

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Hspice option setting helps this Problem.

if you have over 10Million TRs, you should other simulation tool like SmartSpice or HSim/NanoSim

Maybe SmartSpice can simulate circuits had over 20 Million TRs. (I'm not sure)

Hsim/NanoSim is very proper solution for Very large circuit like Memory or Display circuit.

But I'm not sure about accuracy.

 

• Jun 19, 2007

• #6

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bigpop

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you can set "analog" and "speed" options in hsim. It can help you increase the speed.

 

• Jun 21, 2007

• #7

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neo79

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smartspice is much faster for such circuit than hspice. i tried before

 

• Jun 21, 2007

• #8

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kishore2k4

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How about a true mixed signal simulator like AdvanceMS

 

• Jun 21, 2007

• #9

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crossbow_123

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huanchou said:

Dear all

I would like to simulate one huge ( analog+digital) circuit,
but it will take many time to do that in HSPICE.
I have tried Hsim, but it still take many time.
Does any one has the good idea or good tool to do the job?
How do you to simuilate when you meet a huge circuit and integrate all of sub-blocks?

Click to expand...

Using hsim + verilog + verilog-A

 

• Jun 22, 2007

• #10

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shirin_br

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It's also faster with Ultrasim simulator in Spectre. It's less accurate but much faster.

 

• Jun 28, 2007

• #11

paley

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you can do it with hsim or icms

 

• Jun 28, 2007

• #12

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sriramachandra

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pls give the size of the design
if u r doing block level simulations then ADMS might be good but at full chip if ur analog content is very high then ADMS sytruggles

 

• Jun 29, 2007

• #13

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sri8

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Give a try with Ultrasim... with proper settings for speed and accuracy

 

• Jun 29, 2007

• #14

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ynhe

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ADIT is very fast.

 

• Jun 29, 2007

• #15

yingyang

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It is also take time in verilogsim.