The stability of the PLL!

[bracketx]

the steady of PLL

If the PLL is for special application, for example, 32768Hz up to 4MHz, even it has a phase margine of 180 degree, it is also ok .I think it is because the input is dc signal or ?

 

[Miguel Gaspar]

the steady of PLL

The PLL is a complex device, even more their operation.
Please, explain me more abou your application or doubts about it.