Texas Instruments DLPC3438CZEZ

Overview

DLPC3438CZEZ 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, parallel/BT656 pixel interface (up to 155 MHz pixel clock), and IntelliBright™ image processing suite. It enables compact, low-power HD projection in mobile and industrial displays.

For engineers reviewing the DLPC3438CZEZ datasheet, DLPC3438CZEZ pinout, DLPC3438CZEZ application, or DLPC3438CZEZ equivalent, key selection considerations include its NFBGA-201 package, absence of MIPI DSI support (unlike DLPC3433), DMD sub-LVDS interface timing compliance, and required pairing with DLPA200x/DLPA300x PMICs for bias and LED drive.

Technical Context

The DLPC3438CZEZ implements a dedicated DMD interface using dual sub-LVDS differential pairs for high-speed data and clock transmission, plus low-speed control signals (DMD_LS_CLK, DMD_LS_WDATA) for configuration and parking. Its internal eDRAM buffers one full frame, enabling one-frame latency operation and eliminating external frame memory.

It supports programmable degamma, color space conversion (including 4:2:2 to 4:4:4 chroma interpolation), field-scaled de-interlacing, and 1D keystone correction - all executed in real time without host CPU intervention. Power management includes auto-DMD parking via PARKZ and active power control synchronized to illumination timing.

Key Specifications

Pinout & Package

NFBGA-201 package (ZEZ suffix), 13.00 × 13.00 mm body size, 0.5-mm ball pitch, bottom-side solder balls. Thermal pad exposed on underside for enhanced heat dissipation.

Key Features

Applications

Equivalent & Alternatives

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

Compared with DLPC3433ZVB and DLPC3478ZAJ, the DLPC3438CZEZ uniquely balances 720p capability, parallel/BT656 interface support, and DLP3010-optimized sub-LVDS timing - making it the sole qualified controller for cost-sensitive, space-constrained 720p DLP modules requiring no DSI source.

Availability

DLPC3438CZEZ is available at Aetrix Electronics and suitable for mobile projector, industrial HMI, and augmented reality display applications requiring stable component supply, long-term lifecycle assurance, and TI-authorized traceability.

Supply support for DLPC3438CZEZ 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 DLP® technology.

The DLPC3438CZEZ belongs to TI's DLP® Pico™ display controller product line, engineered specifically to drive small-form-factor DMDs in battery-powered and thermally constrained projection systems.

FAQ

What is the primary function of the DLPC3438CZEZ in a DLP projection system?

The DLPC3438CZEZ serves as the dedicated digital display controller for the DLP3010 .3" 720p DMD. It receives video input via parallel or BT656 interface, processes pixels using IntelliBright™ algorithms, buffers one frame in embedded eDRAM, and drives the DMD through a sub-LVDS interface. It does not support MIPI DSI - unlike the DLPC3433 - and must be paired with a compatible TI PMIC (e.g., DLPA2005 or DLPA3005) for DMD bias and LED power.

Does the DLPC3438CZEZ support MIPI DSI input?

No, the DLPC3438CZEZ does not support MIPI DSI input. The datasheet explicitly states "DSI is not available for the DLPC3438." Only the DLPC3433 variant includes MIPI DSI Type 3 support (1–4 lanes, up to 470 Mbps per lane). The DLPC3438CZEZ relies exclusively on parallel or BT656 interfaces for pixel data ingestion, with a maximum pixel clock of 155 MHz.

What package type and dimensions does the DLPC3438CZEZ use?

The DLPC3438CZEZ uses an NFBGA-201 package with a 13.00 × 13.00 mm nominal body size and 0.5-mm ball pitch. This is distinct from the DLPC3433's NFBGA-176 (7.00 × 7.00 mm) package. The ZEZ suffix in DLPC3438CZEZ confirms the 201-ball NFBGA variant, requiring specific PCB footprint, thermal via placement, and solder paste stencil design per TI's layout guidelines.

How does the PARKZ pin function in the DLPC3438CZEZ?

The PARKZ pin on the DLPC3438CZEZ is an active-low input that triggers immediate DMD mirror parking when asserted, typically driven by the DLPAxxxx PMIC's interrupt output during imminent power loss. It uses a hysteresis buffer for noise immunity. Fast park preserves DMD mechanical integrity when a full software-initiated park cannot complete - a critical feature for portable or automotive projection systems where uncontrolled power interruption may occur.

Which power management ICs are compatible with the DLPC3438CZEZ?

The DLPC3438CZEZ is designed to pair with TI's DLPA2000, DLPA2005, DLPA3000, or DLPA3005 PMICs. These provide the required VOFFSET, VBIAS, VRESET, and VLED supplies for the DLP3010 DMD and associated LEDs. The DLPC3438CZEZ communicates with the PMIC via I²C and coordinates power sequencing, including synchronized DMD parking and LED current control - no other vendor's PMICs are validated or supported.