How can i do it?

I have text falling down to the ground for an intro, And i want like rocks or dirt fly when it lands to the ground how can i do that? I tried making a cube with an explosion but i did not like the result.

that cries out for cell fracture

Ok i was able do do it , so i made a copy of the text and added the cell fracture and i want it for it to disperse but i only want to show the fracture to show only when the text lands. How can i do that?

I would render the original until the touchdown and then the cell fracture copy.
So hide the copy until touchdown then switch to the original to hide.