The bomb has a minimum release altitude to give the submunitions time to slow down and acquire a target before detonating. The dispersion area cannot be adjusted in EQUIP.
When the bomb reaches its activation altitude, it deploys 10 sub-munitions dispensers on parachutes each containing 4 Skeet explosively shaped charge penetrators. When the sub-munition dispensers reach their activation heights, the Skeets swing out and shoot upwards. They then scan the area below them with built in cameras, and if they find a tank or other similar ground vehicle, they fire off an explosively shaped piece of copper to penetrate the armor of the target.
Real-world link: CBU-97 Sensor Fused Weapon