Texas Instruments DLPC3470CZEZ

Overview

DLPC3470CZEZ from Texas Instruments is a display and light controller IC designed to drive DLP2010LC and DLP2010NIR 0.2 WVGA digital micromirror devices (DMDs) in compact optical systems. It supports parallel/BT656 video input up to 720p@240Hz, delivers programmable exposure control, achieves pattern rates up to 2500Hz (1-bit), stores >1000 patterns in on-chip flash, and provides two configurable output triggers for camera synchronization.

For engineers reviewing the DLPC3470CZEZ datasheet, DLPC3470CZEZ pinout, DLPC3470CZEZ application, or DLPC3470CZEZ equivalent, key selection considerations include its dual-mode light control (internal/external pattern streaming), DMD sub-LVDS interface timing compliance, I²C-based configuration, programmable LED current control, and NFBGA-201 package compatibility with DLP2010-class optical engines.

Technical Context

The DLPC3470CZEZ implements a tightly integrated architecture combining video processing (IntelliBright™, degamma, 1D keystone), high-speed pattern sequencing, and DMD bias/reset control. Its internal pattern streaming mode eliminates external video interface requirements by executing preloaded sequences directly from flash memory.

It features dual PLL subsystems - a master clock generator (MCG) for system timing and a DMD clock generator (DCG) for precise sub-LVDS DMD clocking - with independent 1.1V power domains (VDD_PLLM/VDD_PLLD) and dedicated ground returns (VSS_PLLM/VSS_PLLD) to minimize jitter coupling into DMD timing paths.

Key Specifications

Pinout & Package

NFBGA-201 package, 13.00mm × 13.00mm body size, 0.8mm ball pitch, bottom-side thermal pad. Pin mapping conforms to ZEZ mechanical variant per TI DLPS110D datasheet.

Key Features

Applications

Equivalent & Alternatives

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

Compared with DLPC3430CZEZ and DLPC3435CZEZ, the DLPC3470CZEZ uniquely integrates BT656 support, IntelliBright™ processing, and autonomous internal pattern streaming - making it the only option among the three capable of full-featured, host-independent DLP2010 light control in space-constrained designs.

Availability

DLPC3470CZEZ is available at Aetrix Electronics and suitable for mobile projector, augmented reality glasses, smart display, machine vision inspection, and pico projector applications requiring stable component supply and long-term DLP chipset continuity.

Supply support for DLPC3470CZEZ 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 DLP® technology solutions with broad industrial, automotive, and consumer design support.

The DLPC3470CZEZ belongs to TI's DLP® Pico™ display controller product line, engineered specifically to enable compact, high-performance projection and structured light systems using DLP2010-class micromirror arrays.

FAQ

What video interfaces does the DLPC3470CZEZ support?

The DLPC3470CZEZ supports both 24-bit parallel RGB (with pixel clock up to 155MHz) and BT656 digital video interfaces. It accepts input resolutions up to 720p and scales them internally to match the 720×480 WVGA native resolution of the DLP2010LC/NIR DMD. The BT656 mode is fully implemented per standard timing and data format requirements as specified in the DLPS110D datasheet.

Does the DLPC3470CZEZ require an external microcontroller to operate?

No - the DLPC3470CZEZ can operate autonomously using its internal pattern streaming mode. It stores over 1000 static 2D patterns in on-chip flash memory and executes them without host intervention. While I²C configuration is used for setup, the DLPC3470CZEZ handles DMD timing, exposure control, and pattern sequencing independently once initialized.

What is the function of the PARKZ pin on the DLPC3470CZEZ?

The PARKZ pin on the DLPC3470CZEZ is an active-low input that triggers immediate DMD mirror parking during imminent power loss. It connects to the interrupt output of companion power ICs like the DLPA200x or DLPA300x. Asserting PARKZ ensures safe mirror state retention before power collapse, though TI recommends normal park operation for maximum DMD lifetime.

How many GPIOs does the DLPC3470CZEZ provide, and what are their key alternate functions?

The DLPC3470CZEZ provides 20 general-purpose I/O pins (GPIO_00 through GPIO_19), each with hysteresis buffers. Key alternate functions include SPI1 interface (GPIO_00–GPIO_03), 3D glasses control (GPIO_04), TRIG_OUT_2 (GPIO_07), pattern ready signal (GPIO_06), thermistor interface (GPIO_10/RC_CHARGE, GPIO_11), and motor sense (GPIO_18/MTR_SENSE). All GPIOs are software-configurable for input/output/bidirectional/open-drain modes.

What power supplies are required for the DLPC3470CZEZ?

The DLPC3470CZEZ requires five distinct supply domains: VDD (1.1V core), VCC18 (1.8V I/O), VCC_INTF (1.8V–3.3V host interface), VCC_FLSH (1.8V–3.3V SPI flash), and separate PLL supplies VDD_PLLM/VDD_PLLD (1.1V each). Dedicated ground returns (VSS, VSS_PLLM, VSS_PLLD) are mandatory for noise isolation, especially for DMD timing integrity.