asdf44
Advanced Member level 4
Does anyone understand how LTSpice's noise simulation works under the hood?
I've used LTSpice extensively but barely touched the noise mode (I'm trying to catch up on my understanding of noise calculations in general). In a couple toy examples it seems almost too good to be true.
Do the model designers need to explicitly prepare the model for this mode or does it emerge from standard model design practices? My understanding is that spice models can vary a lot under the hood and it seems the quality of the noise model would vary accordingly? Thus I wonder if LT models may be better than the AD models that probably weren't designed with LTSpice in mind from the start?
I've used LTSpice extensively but barely touched the noise mode (I'm trying to catch up on my understanding of noise calculations in general). In a couple toy examples it seems almost too good to be true.
Do the model designers need to explicitly prepare the model for this mode or does it emerge from standard model design practices? My understanding is that spice models can vary a lot under the hood and it seems the quality of the noise model would vary accordingly? Thus I wonder if LT models may be better than the AD models that probably weren't designed with LTSpice in mind from the start?