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Design >> Mixed-Signal Design >> DFF setup and hold time simulation methods
https://designers-guide.org/forum/YaBB.pl?num=1142923205

Message started by henry98 on Mar 20^th, 2006, 10:40pm

Title: DFF setup and hold time simulation methods
Post by henry98 on Mar 20^th, 2006, 10:40pm

Hi, Guys,
The DFF is one of the most important devices when desiging PLL.
The one of the most performance is the DFF's setup and hold time.
But till now we have't good solutions to how to simulate these parameter.
So would you please give us some advice/information.
Thanks a lot!
henry

Title: Re: DFF setup and hold time simulation methods
Post by ywguo on Mar 27^th, 2006, 7:23am

Hi, Henry,

I remember that a good method is introduced in HSPICE manual. I am sure you will find a good method in manuals for HSPICE or other tools.

Best regards,
Yawei

Title: Re: DFF setup and hold time simulation methods
Post by Andrew Beckett on Mar 29^th, 2006, 12:55pm

I've a vague idea there's an example of doing this with spectreMDL in the installation. There's a tutorial
under <MMSIMDIR>/tools/spectre/examples - it covers setup at least.

Andrew.

Title: Re: DFF setup and hold time simulation methods
Post by henry98 on Apr 10^th, 2006, 9:39am

OK!
Thanks yawei and Andrew. I will check it. If I have got it, I will report it to you.
Thanks again
henry

Title: Re: DFF setup and hold time simulation methods
Post by ywguo on Apr 12^th, 2006, 10:57pm

henry,

I browse hspice manual again. It has a chapter which describes Timing analysis using bisection. I think that is a good solution.

Yawei