A high accuracy 3D depth capture product is created by using a DLP chipset comprised of a DLP4710LC DMD, 2xDLPC3479 controller and a DLPA300X PMIC/LED drive. The DLPC3479 simplifies the pattern generation, the DLPA300X provides the needed analog functions and DMD displays the required patterns for accurate 3D depth capture. In addition to the three DLP devices in the chipset, other components can be required to complete the application. Minimally, a flash component is required to store patterns, the software, and the firmware in order to control the DLPC3479 controller. The DLPC3479 controller supports any illumination source including IR light source (LEDs or VCSEL), UV light source, or visible light source (Red, Green, or Blue LEDs or lasers).

I²C should be connected to the host processor for sending commands to the DLPC3479. The only power supplies needed external to the projector are the battery (SYSPWR) and a regulated 1.8-V supply. A single signal (PROJ_ON) controls the entire DLP system power. When PROJ_ON is high, the DLP system turns on and when PROJ_ON is low, the DLPC3479 turns off and draws only a few microamperes of current on SYSPWR. When PROJ_ON is low, the 1.8-V power supply can remain at 1.8 V for use by other sub systems. When PROJ_ON is low, the DLPA300X draws no current on the 1.8-V supply.

The TSTPT_2 pin on the primary controller outputs a 25-ns pulse width that should be connected to the 3DR (input) pin of the secondary controller. In case VCC_INTF is not set to 1.8 V, a voltage translator is required. The propagation delay between the rising edge of the TSTPT_2 pin on the primary controller and the VIH of 3DR (input) pin on secondary controller is recommended to be under 10 ns.