TIDUEE5A October   2018  – May 2022

 

  1.   Description
  2.   Resources
  3.   Features
  4.   Applications
  5.   5
  6. 1System Description
    1. 1.1 Key System Specifications
  7. 2System Overview
    1. 2.1 Block Diagrams
    2. 2.2 Design Considerations
    3. 2.3 Highlighted Products
      1. 2.3.1 DLP3030-Q1
      2. 2.3.2 DLPC120-Q1
      3. 2.3.3 TMS320F28023
    4. 2.4 System Design Theory
      1. 2.4.1 Head-up Display Parameter Design and Tradeoffs
        1. 2.4.1.1 Field of View and Eyebox
        2. 2.4.1.2 Resolution
        3. 2.4.1.3 Virtual Image Distance
      2. 2.4.2 Picture Generation Unit Design Decisions
        1. 2.4.2.1 Etendue Efficiency Match
        2. 2.4.2.2 Aperture Size: Selecting f/# of Optics
        3. 2.4.2.3 Thermal Design
        4. 2.4.2.4 LED Selection Summary
      3. 2.4.3 Design Summary
  8. 3Hardware, Software, Testing Requirements, and Test Results
    1. 3.1 Required Hardware and Software
      1. 3.1.1 Hardware
      2. 3.1.2 Software
    2. 3.2 Testing and Results
      1. 3.2.1 Test Setup
      2. 3.2.2 Test Results
  9. 4Design Files
    1. 4.1 Schematics
    2. 4.2 Bill of Materials
    3. 4.3 PCB Layout Recommendations
      1. 4.3.1 Layout Prints
    4. 4.4 Cadence Project
    5. 4.5 Gerber Files
    6. 4.6 Assembly Drawings
  10. 5Software Files
  11. 6Related Documentation
    1. 6.1 Trademarks
  12. 7Terminology
  13. 8Revision History

1 System Description

The design files included in this reference design are for the electronics portion of a HUD system. These include the DLP3030-Q1 based DMD PCB design and the DLPC120-Q1 based controller PCB design. Information for these electronics and designs can be found starting with Section 3. However, it is useful to first describe parameters of a full HUD system as well as the tradeoffs associated. These system-level parameters determine the requirements for the PGU and electronics, so must be considered first, beginning in Section 2.4.

The electronics included are designed to pair with Osram CSL LEDs. The CSL LEDs have better etendue matching with the DLP3030-Q1 DMD than the previous Q8WP based design resulting in a much more efficient design. The use of CSL LEDs enable a smaller, lower cost picture generation unit (PGU) design by minimizing the size and cost of the LEDs, optical elements, heatsinks, and mechanical housing of the PGU. See Section 2.4.2 for more information on LED selection.