DLPS194A November   2020  – June 2022 DLP670S

PRODUCTION DATA  

  1. Features
  2. Applications
  3. Description
  4. Revision History
  5. Pin Configuration and Functions
  6. Specifications
    1. 6.1  Absolute Maximum Ratings
    2. 6.2  Storage Conditions
    3. 6.3  ESD Ratings
    4. 6.4  Recommended Operating Conditions
    5. 6.5  Thermal Information
    6. 6.6  Electrical Characteristics
    7. 6.7  Capacitance at Recommended Operating Conditions
    8. 6.8  Timing Requirements
    9. 6.9  Typical Characteristics
    10. 6.10 System Mounting Interface Loads
    11. 6.11 Micromirror Array Physical Characteristics
    12. 6.12 Micromirror Array Optical Characteristics
    13. 6.13 Window Characteristics
    14. 6.14 Chipset Component Usage Specification
  7. Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
      1. 7.3.1 Power Interface
      2. 7.3.2 Timing
    4. 7.4 Device Functional Modes
    5. 7.5 Optical Interface and System Image Quality
      1. 7.5.1 Numerical Aperture and Stray Light Control
      2. 7.5.2 Pupil Match
      3. 7.5.3 Illumination Overfill
    6. 7.6 Micromirror Array Temperature Calculation
      1. 7.6.1 Micromirror Array Temperature Calculation using Illumination Power Density
      2. 7.6.2 Micromirror Array Temperature Calculation using Total Illumination Power
      3. 7.6.3 Micromirror Array Temperature Calculation using Screen Lumens
    7. 7.7 Micromirror Landed-On/Landed-Off Duty Cycle
      1. 7.7.1 Definition of Micromirror Landed-On/Landed-Off Duty Cycle
      2. 7.7.2 Landed Duty Cycle and Useful Life of the DMD
      3. 7.7.3 Landed Duty Cycle and Operational DMD Temperature
      4. 7.7.4 Estimating the Long-Term Average Landed Duty Cycle of a Product or Application
  8. Application and Implementation
    1. 8.1 Application Information
    2. 8.2 Typical Application
      1. 8.2.1 Design Requirements
      2. 8.2.2 Detailed Design Procedure
    3. 8.3 DMD Die Temperature Sensing
  9. Power Supply Recommendations
    1. 9.1 DMD Power Supply Power-Up Procedure
    2. 9.2 DMD Power Supply Power-Down Procedure
    3. 9.3 Restrictions on Hot Plugging and Hot Swapping
      1. 9.3.1 No Hot Plugging
      2. 9.3.2 No Hot Swapping
      3. 9.3.3 Intermittent or Voltage Power Spike Avoidance
  10. 10Layout
    1. 10.1 Layout Guidelines
      1. 10.1.1 Critical Signal Guidelines
      2. 10.1.2 Power Connection Guidelines
      3. 10.1.3 Noise Coupling Avoidance
    2. 10.2 Layout Example
      1. 10.2.1 Layers
      2. 10.2.2 Impedance Requirements
      3. 10.2.3 Trace Width, Spacing
        1. 10.2.3.1 Voltage Signals
  11. 11Device and Documentation Support
    1. 11.1 Third-Party Products Disclaimer
    2. 11.2 Device Support
      1. 11.2.1 Device Nomenclature
      2. 11.2.2 Device Markings
    3. 11.3 Documentation Support
      1. 11.3.1 Related Documentation
    4. 11.4 Receiving Notification of Documentation Updates
    5. 11.5 Support Resources
    6. 11.6 Trademarks
    7. 11.7 Electrostatic Discharge Caution
    8. 11.8 Glossary
  12. 12Mechanical, Packaging, and Orderable Information

Package Options

Mechanical Data (Package|Pins)
Thermal pad, mechanical data (Package|Pins)
Orderable Information

Typical Application

3D machine vision is a typical embedded system applications for the DLP670S DMD. In this application, two DLPC900 devices control the pattern data being imaged from a DLP670S DMD onto the object being measured while an external camera system monitors the projected patterns as they appear on the object. An external microprocessor can then geometrically determine all 3D points of the object using the knowledge of the projected pattern provided to the object, the actual distorted pattern as captured by the camera, and the angle between the projector line-of-sight and the camera line-of-sight. This type of application diagram is shown in Figure 8-1. In this configuration, the DLPC900 controller supports a 24-bit parallel RGB video input from an external source computer or processor. The video input FPGA splits each 2716 x 1600 image frame into a left half and a right half with the left half feeding the primary DLPC900 and the right half feeding the secondary DLPC900. Each half consists of 1358 columns x 1600 rows plus any horizontal and vertical blanking at half the pixel clock rate. This system configuration supports still and motion video as well as sequential pattern modes. For more information, refer to the DLPC900 digital controller data sheet found on the DLPC900 Product Folder listed under Section 11.3.1.

Figure 8-1 Typical DLP670S Application Diagram