How to use Tone() using CC1101

i need to use Tone() using CC1101 for generating square wave, what is my code?

what is my code?

I don't know you have to write it.
First you need to know how you are going to connect up your CC1101 to the Arduino.

The CC1101 is a Low-Power Sub-1 GHz RF Transceiver. So why not wire the input of that to the output pin of the tone function. As the Arduino works at 5V and the CC1101 at 3V3 you need a potential divider to cur down the signal from the Arduino to prevent you from burning your CC1101.

You need to explain more about what you want to do.