DLPS037H October   2014  – June 2024 DLPC900

PRODUCTION DATA  

  1.   1
  2. 1 Features
  3. 2 Applications
  4. 3 Description
  5. 4 Pin Configuration and Functions
  6. 5 Specifications
    1. 5.1  Absolute Maximum Ratings
    2. 5.2  ESD Ratings
    3. 5.3  Recommended Operating Conditions
    4. 5.4  Thermal Information
    5. 5.5  Electrical Characteristics
    6. 5.6  System Oscillators Timing Requirements #GUID-909D0FD3-84C7-4481-924A-4FDE7EB548A1/DLPS0373944
    7. 5.7  Power-Up and Power-Down Timing Requirements
      1. 5.7.1 Power-Up
      2. 5.7.2 Power-Down
    8. 5.8  JTAG Interface: I/O Boundary Scan Application Timing Requirements
    9. 5.9  JTAG Interface: I/O Boundary Scan Application Switching Characteristics
    10. 5.10 Programmable Output Clocks Switching Characteristics
    11. 5.11 Port 1 and 2 Input Pixel Interface Timing Requirements
    12. 5.12 Two Pixels Per Clock (48-Bit Bus) Timing Requirements
    13. 5.13 Synchronous Serial Port (SSP) Switching Characteristics
    14. 5.14 DMD Interface Switching Characteristics
    15. 5.15 DMD LVDS Interface Switching Characteristics
    16. 5.16 Source Input Blanking Requirements
  7. 6 Detailed Description
    1. 6.1 Overview
    2. 6.2 Functional Block Diagram
    3. 6.3 Feature Description
      1. 6.3.1 DMD Configurations
      2. 6.3.2 Video Timing Input Blanking Specification
      3. 6.3.3 Board-Level Test Support
      4. 6.3.4 Two Controller Considerations
      5. 6.3.5 Memory Design Considerations
        1. 6.3.5.1 Flash Memory Optimization
        2. 6.3.5.2 Operating Modes
        3. 6.3.5.3 DLPC900 External Memory Space
        4. 6.3.5.4 Minimizing Memory Space
        5. 6.3.5.5 Minimizing Board Size
          1. 6.3.5.5.1 Package Selection
          2. 6.3.5.5.2 Large Density Flash
            1. 6.3.5.5.2.1 Combining Two Chip-Selects with One 32-Megabyte Flash
            2. 6.3.5.5.2.2 Combining Three Chip-Selects with One 64-Megabyte Flash
            3. 6.3.5.5.2.3 Combining Three Chip-Selects with One 128-Megabyte Flash
        6. 6.3.5.6 Minimizing Board Space
        7. 6.3.5.7 Flash Memory
    4. 6.4 Device Functional Modes
      1. 6.4.1 Structured Light Application
  8. 7 Application and Implementation
    1. 7.1 Application Information
    2. 7.2 Typical Applications
      1. 7.2.1 Typical Two Controller Chipset
        1. 7.2.1.1 Design Requirements
        2. 7.2.1.2 Detailed Design Procedure
          1. 7.2.1.2.1 DLPC900 System Interfaces
            1. 7.2.1.2.1.1 Control Interface
            2. 7.2.1.2.1.2 Input Data Interfaces
            3. 7.2.1.2.1.3 DLPC900 System Output Interfaces
              1. 7.2.1.2.1.3.1 Illumination Interface
              2. 7.2.1.2.1.3.2 Trigger and Sync Interface
            4. 7.2.1.2.1.4 DLPC900 System Support Interfaces
              1. 7.2.1.2.1.4.1 Reference Clock and PLL
              2. 7.2.1.2.1.4.2 Program Memory Flash Interface
              3. 7.2.1.2.1.4.3 DMD Interface
      2. 7.2.2 Typical Single Controller Chipset
  9. 8 Power Supply Recommendations
    1. 8.1 System Power Regulation
      1. 8.1.1 Power Distribution System
        1. 8.1.1.1 1.15V System Power
        2. 8.1.1.2 1.8V System Power
        3. 8.1.1.3 3.3-V System Power
    2. 8.2 System Environment and Defaults
      1. 8.2.1 DLPC900 System Power-Up and Reset Default Conditions
    3. 8.3 System Power-Up Sequence
      1. 8.3.1 Power-On Sense (POSENSE) Support
      2. 8.3.2 Power Good (PWRGOOD) Support
      3. 8.3.3 5V Tolerant Support
    4. 8.4 System Reset Operation
      1. 8.4.1 Power-Up Reset Operation
      2. 8.4.2 System Reset Operation
  10. 9 Layout
    1. 9.1 Layout Guidelines
      1. 9.1.1  General PCB Recommendations
      2. 9.1.2  PCB Layout Guidelines for Internal Controller PLL Power
      3. 9.1.3  PCB Layout Guidelines for Quality Video Performance
      4. 9.1.4  Recommended MOSC Crystal Oscillator Configuration
      5. 9.1.5  Spread Spectrum Clock Generator Support
      6. 9.1.6  GPIO Interface
      7. 9.1.7  General Handling Guidelines for Unused CMOS-Type Pins
      8. 9.1.8  DMD Interface Considerations
        1. 9.1.8.1 Flex Connector Plating
      9. 9.1.9  PCB Design Standards
      10. 9.1.10 Signal Layers
      11. 9.1.11 Trace Widths and Minimum Spacing
      12. 9.1.12 Trace Impedance and Routing Priority
      13. 9.1.13 Power and Ground Planes
      14. 9.1.14 Power Vias
      15. 9.1.15 Decoupling
      16. 9.1.16 Fiducials
    2. 9.2 Layout Example
    3. 9.3 Thermal Considerations
  11. 10Device and Documentation Support
    1. 10.1 Device Support
      1. 10.1.1 Device Nomenclature
      2. 10.1.2 Device Markings
      3. 10.1.3 DEFINITIONS—Video Timing Parameters
    2. 10.2 Documentation Support
      1. 10.2.1 Related Documentation
    3. 10.3 Receiving Notification of Documentation Updates
    4. 10.4 Support Resources
    5. 10.5 Trademarks
    6. 10.6 Electrostatic Discharge Caution
    7. 10.7 Glossary
  12. 11Revision History
  13. 12Mechanical, Packaging, and Orderable Information

Package Options

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

9.1.2 PCB Layout Guidelines for Internal Controller PLL Power

The following are guidelines to achieve desired controller performance relative to internal PLLs:

The DLPC900 contains four PLLs (PLLM1, PLLM2, PLLD, and PLLS), each of which have a dedicated 1.15V digital supply; three of these PLLs (PLLM1, PLLM2, and PLLD) have a dedicated 1.8V analog supply. It is important to have filtering on the supply pins that covers a broad frequency range. Each 1.15V PLL supply pin must have individual high frequency filtering in the form of a ferrite bead and a 0.1µF ceramic capacitor. These components must be located very close to the individual PLL supply balls. The impedance of the ferrite bead should far exceed that of the capacitor at frequencies above 10MHz. The 1.15V to the PLL supply pins must also have low frequency filtering in the form of an RC filter. This filter can be common to all the PLLs. The voltage drop across the resistor is limited by the 1.15V regulator tolerance and the DLPC900 voltage tolerance. A resistance of 0.36Ω and a 100µF ceramic are recommended. Figure 9-1 shows the recommended filter topology.

DLPC900 Recommended Filter Topology for PLL 1.15V SuppliesFigure 9-1 Recommended Filter Topology for PLL 1.15V Supplies

The analog 1.8V PLL power pins must have a similar filter topology as the 1.15V. In addition, it is recommended that a dedicated linear regulator generates the 1.8V. Figure 9-2 shows the recommended filtering topology.

DLPC900 Recommended Filter Topology for PLL 1.8V SuppliesFigure 9-2 Recommended Filter Topology for PLL 1.8V Supplies

When designing the overall supply filter network, care must be taken to ensure no resonance occurs. Specific care is required around the 1MHz to 2MHz band, as this coincides with the PLL natural loop frequency.

DLPC900 High Frequency DecouplingFigure 9-3 High Frequency Decoupling

High-frequency decoupling is required for 1.15V and 1.8V PLL supplies and must be provided as close as possible to each of the PLL supply package pins as shown in Figure 9-3. Placing decoupling capacitors under the package on the opposite side of the board is recommended. High-quality, low-ESR, monolithic, surface-mount capacitors are recommended for use. Typically, 0.1µF for each PLL supply should be sufficient. The length of a connecting trace increases the parasitic inductance of the mounting, and thus, where possible, there can be no trace, allowing the via to butt up against the land. Additionally, the connecting trace must be made as wide as possible. Further improvement can be made by placing vias to the side of the capacitor lands or doubling the number of vias.

The location of bulk decoupling depends on the system design.