[SI-LIST] HSpice noise analysis question

SI folks,

This is a question I am passing on from a circuit designer who 
is doing noise analysis in HSpice (2001.1).  The subject is a 
DC circuit using "bsim3v3 noise model parameters".  The objective 
as I understand it is to determine the amount and spectrum of 
random noise.  Also, identifying which devices are contributing 
most to the noise would be a really good thing to know.

I'm told the HSpice documentation for this feature is a bit thin.  
It looks for a defined output and input, then gives a noise spectrun 
at the output and an input-referred noise spectrum.  This circuit 
doesn't really have an input, however, and all the designer wants 
is the noise spectrum at a given node.

Any advice would be appreciated.  While this question may not be 
quite the standard "PCB reflections" type of query, I trust folks 
will agree it is certainly of a signal integrity nature.

Thanks in advance.

Mike

-- 
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 Mike Jenkins               Phone: 408.433.7901            _____     
 LSI Logic Corp, ms/G715      Fax: 408.433.7495        LSI|LOGIC| (R)   
 1525 McCarthy Blvd.       mailto:Jenkins@xxxxxxxx        |     |     
 Milpitas, CA  95035         http://www.lsilogic.com      |_____|    
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