Stats

Replies 2
Subscribers 125
Views 1463
Members are here 0

Nonlinear static block in tabular form

MikeA 5 months ago

Hi,

I am looking for a block to implement a nonlinear input/output relationship where the transfer law is given in tabular form.

Is it possible within the space of AnalogLib and other primitive components?

I believe it to be possible using the $table_model and a Verilog-A block, but I'm just curious if there isn't a direct way within "Spectre".

Thanks!

Michele

Andrew Beckett 5 months ago

There's pvcvsp which is polynomial voltage-controlled voltage source (with variable numbers of inputs) but not sure that's what you want. Given the flexibility there is with $table_model, I don't think there's anything more direct - but I'd question why you don't just create a Verilog-A model to do this - it's not difficult!

Andrew
Cancel
Vote Up 0 Vote Down

Sign in to reply

Cancel
MikeA 5 months ago in reply to Andrew Beckett

Hi Andrew,

pvcvsp would need an underlying polynomial function to describe the I/O relationship.

The $table_model is absolutely perfect - that's what I used; I was just wondering whether there is a similar primitive directly in SPECTRE.

Thanks!
Cancel
Vote Up 0 Vote Down

Sign in to reply

Cancel

Community Guidelines

The Cadence Design Communities support Cadence users and technologists interacting to exchange ideas, news, technical information, and best practices to solve problems and get the most from Cadence technology. The community is open to everyone, and to provide the most value, we require participants to follow our Community Guidelines that facilitate a quality exchange of ideas and information. By accessing, contributing, using or downloading any materials from the site, you agree to be bound by the full Community Guidelines.