Hi Ken Kunder,

I am refering your interesting paper "Device Noise Simulation of Sigma-Delta Modulator". It's really invaluable for me, a designer struggling in SC SDM simulation.

It seems that the whole SDM is simulated by the behavior model (Verilog-A) and the time domain simulation (tran simulation, spectre).
You mentioned that in "3. methodolgy" (p. 4) of this paper and the attached scripts.

Also, you said "the second order converter of Figure 5 was implemented in difference equation form in
Verilog-A and simulated with SpectreRF." (p. 18 ) in your paper.

I just wander that how the whole SDM is simulated with SpecteRF.  Could SpecteRF do the tran simulation and simulate SDM (chaotic steady-state)?

Thanks for your kindly help!

thanks.