pxf spectre example
I think it would be better to explain in the following few points:
1. There must be only one frequency conversion effect done by the combination of PSS+PAC.
2. In PSS, you define your periodic operating frequency fs, which is also your center of the reference sidebands and also the location of the convolution in freq. domain.
3. In PAC, you define your input signal frequency fo and also the reference sideband number N, which means that from the info of PSS+PAC you will calculate small signal gain from fo+N*fs. So I think there is only one freq conversion effect, performed by PSS+PAC at the same time, since only PSS analysis does not show you any information about freq. conversion.
4. The only nonlinear effect considered in PSS+PAC is the one that caused by the large periodic stimuli nonlinearity (nonlinearity caused by clock or LO). In additions to this, no nonlinearity is considered in PAC (ie, the nonlinearity from the input signal will not be considered).