Hi I'm student of first semester of electronic engineering and I need to search a circuit and simulate it in spice that can do a sine signal with a particular caracteristic.

Srry for my english .

 

From what I understand, you are given an output signal and are asked to build the circuit that produces it. Am I getting it right?
So, what is your problem? You don't have the software? You don't know hou to use it? Or you don't know wich circuit you should build?
Please be more specific.