Texas Instruments DLPC3433CZVB

Overview

DLPC3433CZVB 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.

For engineers reviewing the DLPC3433CZVB datasheet, DLPC3433CZVB pinout, DLPC3433CZVB application, or DLPC3433CZVB equivalent, key selection criteria include DSI lane support, sub-LVDS DMD interface timing compliance, parallel/BT656 input flexibility, 155 MHz pixel clock capability, and compatibility with DLPA2000/DLPA3005 PMICs for illumination control.

Technical Context

The DLPC3433CZVB implements a dedicated video pipeline with field-scaled de-interlacing, 4:2:2 to 4:4:4 chroma interpolation, programmable degamma, and color space conversion - all executed in real time with one-frame latency. Its DMD interface uses dual-mode sub-LVDS signaling (high-speed data + low-speed control) and supports auto DMD parking via PARKZ.

It integrates a system-level I²C configuration interface, SPI flash boot support (up to 128 Mb), GPIO-controlled LED current (LED_SEL_0/1), and programmable splash screens. The controller requires external PLL reference clock (24–27 MHz) and operates with multiple power domains: VDD (1.1 V), VDDLP12 (1.2 V), VCC (3.3 V), VCC_INTF (1.8 V), and VCC_FLSH (1.8 V).

Key Specifications

Pinout & Package

NFBGA-176 package, 7.00 × 7.00 mm body size, 0.5 mm pitch - compatible with standard fine-pitch PCB assembly processes and thermal vias under die.

Key Features

Applications

Equivalent & Alternatives

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

Compared with DLPC3438CZEB and DLPC3478CZVB, the DLPC3433CZVB uniquely balances MIPI DSI integration, 720p performance, and 7 mm × 7 mm footprint - making it the only production-qualified option for compact, battery-powered DLP3010 projectors requiring DSI connectivity.

Availability

DLPC3433CZVB is available at Aetrix Electronics and suitable for mobile projector, augmented reality glasses, and smart display applications requiring stable component supply, long-term lifecycle support, and TI-validated optical module compatibility.

Supply support for DLPC3433CZVB 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 specializing in analog, embedded processing, and digital light processing technologies, with over 90 years of innovation in power management and signal chain solutions.

The DLPC3433CZVB belongs to TI's DLP® Pico™ display controller product line, engineered specifically for ultra-compact, low-power projection systems using DLP3010 DMD - targeting portable consumer and industrial near-eye applications.

FAQ

What is the primary function of the DLPC3433CZVB in a DLP3010-based system?

The DLPC3433CZVB serves as the dedicated digital display controller for the DLP3010 (.3" 720p) DMD, handling video input processing (including IntelliBright™ algorithms), DMD interface timing generation (sub-LVDS), and system-level control (I²C, GPIO, flash boot). It is not a general-purpose MCU but a purpose-built ASIC optimized for DLP optical engine integration. The DLPC3433CZVB enables full 720p operation with one-frame latency and hardware-accelerated keystone correction.

Does the DLPC3433CZVB support MIPI DSI, and what are the lane limitations?

Yes, the DLPC3433CZVB supports MIPI DSI Type 3 with configurable 1–4 data lanes operating up to 470 Mbps per lane - a feature exclusive to the DLPC3433 family (not available on DLPC3438). This allows direct connection to mobile application processors while maintaining bandwidth for 720p@120 Hz. The DLPC3433CZVB requires proper DSI initialization per TI's programmers guide and LP-mode entry during vertical blanking intervals.

What power supply rails does the DLPC3433CZVB require, and how are they used?

The DLPC3433CZVB requires seven distinct power domains: VDD (1.1 V core), VDDLP12 (1.2 V low-power logic), VCC (3.3 V I/O), VCC_INTF (1.8 V interface), VCC_FLSH (1.8 V SPI flash), VSS_PLLM (PLL analog ground), and VSS_PLLD (PLL digital ground). Each rail powers specific functional blocks - for example, VCC_INTF supplies I²C, SPI, and GPIO logic, while VDDLP12 drives DSI receiver circuitry. Proper sequencing (VCC first, then VDD/VDDLP12, then VCC_INTF/VCC_FLSH) is mandatory per TI's power-up guidelines.

How does the PARKZ pin function, and why is it critical for DMD reliability?

The PARKZ pin (C13) is an active-low hysteresis input that triggers fast DMD mirror parking when imminent power loss is detected - typically driven by the DLPA3005's interrupt output. Asserting PARKZ initiates a hardware-controlled sequence that resets all mirrors to a safe neutral position within 20 ms, preventing mechanical stress and electrostatic damage during uncontrolled shutdown. The DLPC3433CZVB's PARKZ implementation is validated for DLP3010 lifetime extension and must be connected per TI's recommended RC network for noise immunity.

Can the DLPC3433CZVB operate without external flash memory?

No - the DLPC3433CZVB requires external SPI flash (up to 128 Mb) for firmware storage and boot code execution; it lacks internal non-volatile program memory. During power-up, the DLPC3433CZVB loads configuration and display firmware from the connected flash device via its dedicated SPI0 interface (SPI0_CLK, SPI0_DIN, SPI0_DOUT, SPI0_CSZ0/1). Operation without flash results in failed initialization and no video output - the DLPC3433CZVB will not enter functional mode.