In a message dated 2005-08-25 04:46:06 PM Eastern Daylight Time, 
[EMAIL PROTECTED] writes:


> I've been using Protel 99SE for about a year or so now, and I've learned to 
> take much of the documentation with a grain of salt.  
> 
> I now have to do considerable signal analysis of a board I'm designing.  The 
> manual says their SI is "sophisticated."  Is this true, or should I bother 
> with the SI simulator?
> 

This is just one opinion, from one who has used simulation but could not be 
considered an expert in this particular aspect of 99SE. Protel's simulation is 
pretty bad, and in particular cannot be done on the same schematic you use for 
board layout. You have to use different components; at least I never found 
any "simulation ready" components that could also be used for layout (that may 
have changed in later versions; I'm still one of the holdouts on 99SE SP6, and 
likely to stay that way for quite a while yet). I gave up early on, and now 
use a separate package when I need to do a simulation. YMMV.

Steve Hendrix
 
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