It doesn't have phantom power. You'll need a powered mic or a preamp to power it.
That said, you'll need a preamp or powered mic anyway, without it the sound on any Black Magic camera is crap. With it it's a crap shoot, but if you know what you're doing you CAN get decent sound with it. It's more trouble than it's worth due to the combination of the existing sound bugs on the camera and mediocrity of their recording system anyway, it's nothing to write home about. We don't get these cameras to double as sound recorders, after all.