Though it is possible for a good DDR player to achieve this using a standard dance pad (go into the controller options and turn off ABXY for dance pads for a minimum of ghosting), people hoping to get this achievement quickly may be inclined to use a controller.
Change the timing if need be, and pick a fairly simple song.
I was able to achieve this using the controller before I discovered I could turn the abxy off on my dance pad, on the song Kind Lady (one of my favorites and no really tricky sequences).
No Turbo neccesary, and it only took 2 passes through the song.
Good luck and have fun dancing!