Texas Instruments DLPC3438ZEZ

Overview

DLPC3438ZEZ 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 embedded eDRAM, IntelliBright™ image processing, and parallel/BT656 pixel interface operating up to 155 MHz - deployed in mobile projectors and smart displays.

For engineers reviewing the DLPC3438ZEZ datasheet, DLPC3438ZEZ pinout, DLPC3438ZEZ application, or DLPC3438ZEZ equivalent, key selection considerations include NFBGA-201 package compatibility, absence of MIPI DSI support (unlike DLPC3433), sub-LVDS DMD interface timing, I²C configuration, and pairing requirements with DLPA200x/DLPA300x PMICs.

Technical Context

The DLPC3438ZEZ implements a dedicated DMD interface with dual sub-LVDS high-speed data lanes (DATAA–DATAH) and clock (CLK_P/N), plus low-speed control signals (DEN_ARSTZ, LS_CLK, LS_RDATA) for mirror reset and bias management. It integrates a programmable image pipeline including 4:2:2 to 4:4:4 chroma interpolation, field-scaled de-interlacing, and degamma correction.

System-level integration relies on parallel 24-bit pixel input (PDATA_0–PDATA_23), I²C control (IIC0/IIC1), SPI flash interface (SPI0), GPIO bank (GPIO_00–GPIO_19), and power domain separation across VDD, VDDLP12, VCC_INTF, VCC_FLSH, and VCC - all coordinated under one-frame latency operation and auto-DMD parking via PARKZ.

Key Specifications

Pinout & Package

DLPC3438ZEZ uses a 201-pin NFBGA (ZEZ) package with 13.00 × 13.00 mm body size, 0.65 mm ball pitch, and bottom-side signal mapping optimized for DMD interconnect and thermal dissipation in compact optical modules.

Key Features

Applications

Equivalent & Alternatives

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

Compared with DLPC3438ZEZ, DLPC3433NFB offers DSI but sacrifices package size and GPIO count, while DLPC3435ZEZ retains full pin compatibility and improves thermal robustness - making it the preferred upgrade path for production continuity.

Availability

DLPC3438ZEZ is available at Aetrix Electronics and suitable for mobile projector, augmented reality glasses, and industrial display applications requiring stable component supply, long-term manufacturability, and TI-qualified optical reference designs.

Supply support for DLPC3438ZEZ 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 headquartered in Dallas, Texas, delivering analog and embedded processing solutions across industrial, automotive, and personal electronics markets.

The DLPC34xx product line is engineered as a complete chipset companion for DLP3010 DMDs, targeting ultra-compact, low-power projection systems where optical efficiency, thermal density, and firmware-defined image quality are design priorities.

FAQ

What is the primary function of the DLPC3438ZEZ in a DLP3010-based system?

The DLPC3438ZEZ serves as the dedicated display controller for the DLP3010 .3" 720p DMD, managing pixel data routing, image processing (including IntelliBright™ algorithms), DMD timing, and system-level control. It interfaces directly with host processors via parallel/BT656 and drives the DMD through sub-LVDS signals - enabling compact, low-power projection without external frame buffers. The DLPC3438ZEZ is not a general-purpose GPU or video processor but a purpose-built DMD controller.

Does the DLPC3438ZEZ support MIPI DSI input?

No, the DLPC3438ZEZ does not support MIPI DSI input. DSI functionality is exclusive to the DLPC3433 variant (DLPC3433NFB). The DLPC3438ZEZ supports only parallel and BT656 pixel interfaces, with a maximum pixel clock of 155 MHz. Attempting to route DSI signals to DLPC3438ZEZ pins will result in non-functional operation, as the receiver circuitry is absent in this part number.

What is the role of the PARKZ pin on the DLPC3438ZEZ?

The PARKZ pin on the DLPC3438ZEZ is an active-low hysteresis input that triggers immediate mechanical parking of the DLP3010 DMD mirrors during imminent power loss. It is typically driven by the interrupt output of a paired DLPA200x/DLPA300x PMIC. Asserting PARKZ ensures safe mirror reset before voltage collapse, preserving DMD lifetime - a critical feature absent in non-DLP display controllers. The DLPC3438ZEZ executes this function autonomously without host software involvement.

Which power management ICs are compatible with the DLPC3438ZEZ?

The DLPC3438ZEZ is designed to pair exclusively with TI's DLPA2000, DLPA2005, DLPA3000, or DLPA3005 PMICs. These provide the required VOFFSET, VBIAS, VRESET, and VLED supplies for the DLP3010 DMD and LED array, along with synchronized power sequencing and fault reporting. Using non-TI PMICs or discrete regulators violates the chipset specification and risks DMD damage due to improper bias timing or voltage ramp rates.

How does the DLPC3438ZEZ handle image processing without external memory?

The DLPC3438ZEZ incorporates embedded eDRAM that stores at least one full frame of 720p pixel data, enabling on-chip execution of IntelliBright™ processing, 4:2:2 to 4:4:4 chroma interpolation, de-interlacing, and keystone correction - all without external SDRAM or DDR. This eliminates memory interface timing constraints and reduces EMI, making the DLPC3438ZEZ suitable for space- and noise-sensitive optical modules where the DLPC3438ZEZ operates as a self-contained imaging pipeline.