Texas Instruments DLPC3433ZVB

Overview

DLPC3433ZVB from Texas Instruments is a digital display controller IC designed specifically for the DLP3010 (.3" 720p) digital micromirror device (DMD), supporting up to 720p resolution at input frame rates up to 120 Hz, with MIPI DSI Type 3 interface (1–4 lanes, up to 470 Mbps/lane), embedded eDRAM frame memory, and IntelliBright™ image processing suite - deployed in mobile projectors and smart displays requiring compact, low-power HD imaging.

For engineers reviewing the DLPC3433ZVB datasheet, DLPC3433ZVB pinout, DLPC3433ZVB application, or DLPC3433ZVB equivalent, key selection considerations include DSI lane count compatibility, 155 MHz pixel clock support, sub-LVDS DMD interface timing, I²C configuration requirements, and pairing with TI's DLPA2000/2005/3000/3005 PMIC+LED driver chipset.

Technical Context

The DLPC3433ZVB implements a dedicated DMD interface with dual-mode sub-LVDS high-speed data/clock (DMD_HS_WDATAx/DMD_HS_CLK) and low-speed control (DMD_LS_WDATA/DMD_LS_CLK), enabling precise mirror addressing and fast park control via PARKZ. Its internal PLL supports system clock generation for pixel processing and DSI timing alignment.

It integrates programmable degamma, 4:2:2 to 4:4:4 chroma interpolation, field-scaled de-interlacing, and local area brightness boost - all executed in real time using on-chip processing resources without external frame buffers. The controller requires coordinated power sequencing with DLPA-series PMICs and uses I²C (IIC0_SDA/IIC0_SCL) for register-level configuration.

Key Specifications

Pinout & Package

NFBGA-176 package (7.00 × 7.00 mm, 0.5 mm pitch), ZVB suffix denotes this exact mechanical and thermal variant. Pin functions validated per TI DLPS035E Rev E (Nov 2020) Figure 5-1 and Section 5.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar display controller applications.

Compared with DLPC3433ZVB, DLPC3438ZEX offers more GPIOs and larger eDRAM but lacks DSI and increases PCB area by >3×; DLPC3430ZXB reduces size and cost but sacrifices resolution, frame rate, and interface flexibility - making DLPC3433ZVB the optimal balance for compact 720p DSI-connected systems.

Availability

DLPC3433ZVB is available at Aetrix Electronics and suitable for mobile projector, augmented reality glasses, and smart display applications requiring stable component supply, long-term lifecycle assurance, and TI-authorized traceability.

Supply support for DLPC3433ZVB includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Texas Instruments is a global semiconductor company delivering analog and embedded processing solutions, with leadership in precision analog, power management, and digital signal processing technologies.

The DLPC3433 belongs to TI's DLP® Pico™ display controller product line, engineered specifically to enable miniature, low-power, high-resolution projection systems using DLP micromirror technology - targeting portable, wearable, and embedded visual interfaces.

FAQ

What is the primary function of the DLPC3433ZVB in a DLP3010-based display system?

The DLPC3433ZVB serves as the dedicated digital display controller for the DLP3010 .3" 720p DMD, managing pixel data formatting, timing generation, DMD interface signaling (sub-LVDS and low-speed), image processing (IntelliBright™), and system-level configuration via I²C. It bridges host processors to the DMD while integrating frame memory and illumination control - eliminating need for external memory or video processors in compact designs. DLPC3433ZVB is essential for achieving synchronized, low-latency, high-fidelity projection.

Does the DLPC3433ZVB support MIPI DSI, and what are its lane and speed limitations?

Yes, the DLPC3433ZVB supports MIPI DSI Type 3 interface exclusively - a capability not present in the DLPC3438. It operates with 1 to 4 configurable lanes, each supporting up to 470 Mbps, enabling sufficient bandwidth for 720p@60 Hz (2-lane) or 720p@120 Hz (4-lane) operation. Lane count and speed must be configured in firmware and matched to host SoC DSI PHY capabilities. DLPC3433ZVB does not support DSI in LP mode outside vertical blanking intervals.

How does the PARKZ pin function, and what is its relationship to DMD reliability?

The PARKZ pin (C13) is an active-low hysteresis input that triggers immediate DMD mirror parking during imminent power loss. When asserted, it initiates fast mechanical reset of all micromirrors to safe state - preventing stiction or electrostatic damage. However, TI specifies that extended use of PARKZ may reduce DMD lifetime versus controlled auto-parking; thus, DLPC3433ZVB's PARKZ is intended only for emergency scenarios. It is typically driven by the DLPA-series PMIC's interrupt output to ensure coordinated power-loss response.

What power supply rails does the DLPC3433ZVB require, and why are their sequencing constraints critical?

The DLPC3433ZVB requires five distinct supplies: VDD (1.1 V core), VDDLP12 (1.2 V logic), VCC (3.3 V I/O), VCC_INTF (1.8 V interface), and VCC_FLSH (1.8 V flash). Sequencing is critical because RESETZ must remain asserted until all rails are stable and within specification - particularly VDD and VDDLP12, which power internal PLLs and memory arrays. Violating ramp rate or order (e.g., VCC before VDD) risks initialization failure or latent functional errors. TI recommends using DLPA2005 or DLPA3005 for guaranteed compliant sequencing.

Can the DLPC3433ZVB operate without external flash memory, and what firmware dependencies exist?

No - the DLPC3433ZVB requires external SPI flash (up to 128 Mb) to store firmware, configuration tables, and calibration data. It boots by loading microcode from flash into internal RAM; absence of properly programmed flash results in failure to initialize the DMD interface or respond to I²C commands. Firmware version directly affects supported resolutions, frame rates, and feature enablement (e.g., 120 Hz over DSI requires specific firmware revision). TI provides reference firmware images and programmers, but flash contents must be validated per application-specific optical and thermal conditions.