DLPS178C may 2020 – july 2023 DLP4710LC
PRODUCTION DATA
A high-accuracy, 3D depth capture product is created by using a DLP chipset comprised of DLP4710LC DMD, 2xDLPC3479 controller and DLPA3000 PMIC/LED drive. The DLPC3479 simplifies the pattern generation, the DLPA3000 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 may 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. 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).
To send commands from the host processor to the DLPC3479, connect the two via I2C. The only power supplies needed for the DLP4710LC chipset is the input power (SYSPWR). All other needed supplies are being provided by the DLPA3000 or DLPA3005 PMIC for this chipset. 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.
The TSTPT_2 pin on the master controller outputs a 25ns pulse width that should be connected to the 3DR (input) pin of the slave controller. In case VCC_INTF is not set to 1.8V, a voltage translator is required. The propagation delay between the rising edge of TSTPT_2 pin on the master controller and the VIH of 3DR (input) pin on slave controller is recommended to be under 10ns.