# How do determine MOSFET parameters in LTSPICE

I am designing a phase locked loop on LTspice (which I'm new to), but have come across a snag in the procedure:

• Is there a way to determine the output resistance of a mosfet (as the I'm not able to determine the early voltage or lambda from the model file)?
• How does one separate the gain and the phase plot on performing AC analysis?
• Finally, how to determine the varying $$\g_m\$$ (transconductance) that is induced by the body effect whilst performing DC analysis?.