DMDs are spatial light modulators that reflect incoming light from an illumination source to one of two directions, with the primary direction being into a projection or collection optic. Each application is derived primarily from the optical architecture of the system and the format of the data coming into the two DLPC4420 display controllers. Typical applications using the DLP801XE DMD include smart projectors, enterprise projectors, large venue projectors, and digital signage.

DMD power-up and power-down sequencing is strictly controlled by the DLPC4420 display controller through the DLPA300. Refer to Power Supply Recommendations for power-up and power-down specifications. For reliable operation, the DLP801XE DMD must always be used with two DLPC4420 display controllers, a DLPA100 PMIC/Motor driver and a DLPA300 micromirror driver.