4885-213BH

Overview

The Texas Instruments model 4885-213BH is a Digital Micromirror Device (DMD), classified as a specialized integrated circuit. It functions as a monolithic, micromechanical spatial light modulator that integrates discrete, tilting mirror elements with CMOS addressing circuits at each pixel location. This semiconductor-based array operates as a digital light switch, utilizing binary pulse width modulation to precisely control incident light sources for high-definition image formation in projection display systems.

Feature Summary

• Monolithic integration of micromechanical mirrors with underlying CMOS static RAM memory elements
• Acts as a fast, reflective digital light switch array for spatial light modulation
• Utilizes diagonal hinge mechanisms for rapid mirror movement and optical modulation

Applications

• Projection display systems
• Digital cinema
• High-definition televisions (HDTVs)
• Scientific instrumentation
• Medical imaging

Procurement Notes

Verify the specific part number against official Texas Instruments documentation to confirm current production status and exact specifications. The provided description identifies the component as a DMD IC; however, detailed electrical parameters and pin configurations require reference to the manufacturer's datasheet. Ensure compatibility with existing driver electronics and optical engines before procurement.

Selection Notes

Select this component for applications requiring high-speed digital light modulation and high contrast ratios. Consider the device's capability to operate outside the visible spectrum if used for specialized tasks like lithography or holographic data storage. Verify that the system architecture supports the required resolution and switching speeds inherent to DLP technology.

Part Context

This component is central to Texas Instruments' Digital Light Processing (DLP) technology. The DMD serves as the core active element in DLP projectors and displays, enabling the development of compact, high-brightness imaging solutions. Its development represents a significant advancement in micro-opto-electromechanical systems (MOEMS) for commercial display and hard copy applications.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material. Replacement requires matching the specific DMD resolution, package type, and interface requirements defined by the original equipment manufacturer's design specifications.