In addition to the three DLP devices in the chipset, other IC components may be needed. At a minimum, this design requires a flash device to store the software and firmware to control the DLPC3470 .

Red, green, and blue LEDs typically supply the illumination light that is applied to the DMD. These LEDs are often contained in three separate packages, but sometimes more than one color of LED die may be in the same package to reduce the overall size of the pico-projector.

A parallel interface connects the DLPC3470 to the host processing for receiving images. When the parallel interface is used, use an I²C interface to the host processor for sending commands to the DLPC3470.

The battery (SYSPWR) and a regulated 1.8-V supply are the only power supplies needed external to the projector in case of DLPA200x. The DLPA3000 supplies the 1.8V without external regulator.