Re: Verilog-AMS Committee Meeting Minutes - Oct 5 2006

Ooh, I'm really sorry I missed this meeting.  I have a
couple comments.

Dave Miller wrote:
> 
> Section 4.4.10 - The last sentence in the last paragraph should read:
> "In AC small-signal analysis, the slew() function has unity transfer function."

Is this right?  I certainly believe that the "usual" ac analysis
that follows a dc operating point would have unity transfer
function for the slew.  But in some cases, one can do an ac
analysis on an operating point captured from a transient.

Although periodic-ac or p-noise are outside the LRM, I would
expect that, for consistency, one would need to have a
non-unity transfer function during these analyses when the
function is slewing, and this would dictate a non-unity
transfer function for an ac analysis of a transient 
operating point.


> Section 4.5.4.3 - Graham will check to ensure that vector
> parameters are allowed as the first argument to noise_table(),
> Also make a mention in this section that a vector can be a
> concatenation or vector parameter or combination of both,
> as long as the resulting "vector" is even in length (must be
> pairs).

The noise_table() description does not specify what happens
for frequencies below the smallest value or above the largest
value specified in the vector.  This needs to be clarified.
Is it an error?  Does the simulator extrapolate - linearly
or with a clamp?  Or is the noise power zero?

Also, there was a request, I believe, to have something other
than a linear interpolation, specifically logarithmic.


-Geoffrey