JAJSMH2A July   2021  – August 2021 DLPC1438

PRODUCTION DATA  

  1. 1 特長
  2. 2 アプリケーション
  3. 3 概要
  4. 4 Revision History
  5. 5 Pin Configuration and Functions
  6. 6 Specifications
    1. 6.1  Absolute Maximum Ratings
    2. 6.2  ESD Ratings
    3. 6.3  Recommended Operating Conditions
    4. 6.4  Thermal Information
    5. 6.5  Power Electrical Characteristics
    6. 6.6  Pin Electrical Characteristics
    7. 6.7  Internal Pullup and Pulldown Electrical Characteristics
    8. 6.8  DMD Sub-LVDS Interface Electrical Characteristics
    9. 6.9  DMD Low-Speed Interface Electrical Characteristics
    10. 6.10 System Oscillator Timing Requirements
    11. 6.11 Power Supply and Reset Timing Requirements
    12. 6.12 Parallel Interface Frame Timing Requirements
    13. 6.13 Parallel Interface General Timing Requirements
    14. 6.14 BT656 Interface General Timing Requirements
    15. 6.15 Flash Interface Timing Requirements
    16. 6.16 Other Timing Requirements
    17. 6.17 DMD Sub-LVDS Interface Switching Characteristics
    18. 6.18 DMD Parking Switching Characteristics
    19. 6.19 Chipset Component Usage Specification
  7. 7 Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
      1. 7.3.1 Input Source
        1. 7.3.1.1 Supported Resolution and Frame Rates
        2. 7.3.1.2 Parallel Interface
      2. 7.3.2 External Print
      3. 7.3.3 Device Startup
      4. 7.3.4 SPI Flash
        1. 7.3.4.1 SPI Flash Interface
        2. 7.3.4.2 SPI Flash Programming
      5. 7.3.5 I2C Interface
      6. 7.3.6 Test Point Support
      7. 7.3.7 DMD Interface
        1. 7.3.7.1 Sub-LVDS (HS) Interface
    4. 7.4 Device Functional Modes
    5. 7.5 Programming
  8. 8 Application and Implementation
    1. 8.1 Application Information
    2. 8.2 Typical Application
      1. 8.2.1 Pattern projector for 3D printer without actuation and without FPGA
        1. 8.2.1.1 Design Requirements
        2. 8.2.1.2 Detailed Design Procedure
        3. 8.2.1.3 Application Curve
      2. 8.2.2 Pattern projector for 3D printer with actuator
        1. 8.2.2.1 Design Requirements
        2. 8.2.2.2 Detailed Design Procedure
        3. 8.2.2.3 Application Curve
  9. 9 Power Supply Recommendations
    1. 9.1 PLL Design Considerations
    2. 9.2 System Power-Up and Power-Down Sequence
    3. 9.3 Power-Up Initialization Sequence
    4. 9.4 DMD Fast Park Control (PARKZ)
    5. 9.5 Hot Plug I/O Usage
  10. 10Layout
    1. 10.1 Layout Guidelines
      1. 10.1.1 PLL Power Layout
      2. 10.1.2 Reference Clock Layout
        1. 10.1.2.1 Recommended Crystal Oscillator Configuration
      3. 10.1.3 Unused Pins
      4. 10.1.4 DMD Control and Sub-LVDS Signals
      5. 10.1.5 Layer Changes
      6. 10.1.6 Stubs
      7. 10.1.7 Terminations
      8. 10.1.8 Routing Vias
      9. 10.1.9 Thermal Considerations
    2. 10.2 Layout Example
  11. 11Device and Documentation Support
    1. 11.1 Device Support
      1. 11.1.1 Third-Party Products Disclaimer
      2. 11.1.2 Device Nomenclature
        1. 11.1.2.1 Device Markings
    2. 11.2 Documentation Support
      1. 11.2.1 Related Documentation
    3. 11.3 Receiving Notification of Documentation Updates
    4. 11.4 サポート・リソース
    5. 11.5 Trademarks
    6. 11.6 Electrostatic Discharge Caution
    7. 11.7 Glossary
  12. 12Mechanical, Packaging, and Orderable Information

パッケージ・オプション

メカニカル・データ（パッケージ｜ピン）
サーマルパッド・メカニカル・データ
発注情報

9.2 System Power-Up and Power-Down Sequence

Although the DLPC1438 requires an array of power supply voltages, (for example, VDD, VDDLP12, VDD_PLLM/D, VCC18, VCC_FLSH, VCC_INTF), because VDDLP12 is tied to the 1.1-V VDD supply, then there are no restrictions regarding the relative order of power supply sequencing to avoid damaging the controller (This is true for both power-up and power-down scenarios). Similarly, there is no minimum time between powering-up or powering-down the different supplies if VDDLP12 is tied to the 1.1-V VDD supply.

Although there is no risk of damaging the controller if the above power sequencing rules are followed, the following additional power sequencing recommendations must be considered to ensure proper system operation.

  • To ensure that DLPC1438 output signal states behave as expected, all controller I/O supplies should remain applied while VDD core power is applied. If VDD core power is removed while the I/O supply (VCC_INTF) is applied, then the output signal state associated with the inactive I/O supply goes to a high impedance state.
  • Additional power sequencing rules may exist for devices that share the supplies with the controller, and thus these devices may force additional system power sequencing requirements.

Note that when VDD core power is applied, but I/O power is not applied, additional leakage current may be drawn. This added leakage does not affect normal controller operation or reliability.

Figure 9-1, Figure 9-2 and Figure 9-3 show the controller power-up and power-down sequence for both the normal PARK and fast PARK operations of the DLPC1438 controller.

Note:

During a Normal Park it is recommended to maintain SYSPWR within specification for at least 50 ms after PROJ_ON goes low. This is to allow the DMD to be parked and the power supply rails to safely power down. After 50 ms, SYSPWR can be turned off. If a DLPA200x is used, it is also recommended that the 1.8-V supply fed into the DLPA200x load switch be maintained within specification for at least 50 ms after PROJ_ON goes low.

GUID-40990A03-7E41-4210-ACA4-D31C85CEED25-low.gif

t1: SYSPWR (VIN) applied to the PMIC. All other voltage rails are derived from SYSPWR.
t2: All DLPC1438 supplies reach 95% of their specified nominal value. Note HOST_IRQ may go high sooner if it is pulled-up to a different external supply.
t3: Point where RESETZ is deasserted (goes high). This indicates the beginning of the controller auto-initialization routine.
t4: HOST_IRQ goes low to indicate initialization is complete. I2C is now ready to accept commands.
(a): The typical delay between the PLL reference clock becoming active and RESETZ being deasserted (going high) is less than 1 ms. PLL_REFCLK must be stable within 5 ms of all power being applied, and may be active before power is applied.
(b): There is a typical controller boot time of 100 ms. PARKZ must be high before RESETZ releases to support auto-initialization. RESETZ must also be held low for at least 5 ms after DLPC1438 power supplies are in specification.
(c): There is a typical FPGA setup time of 2.75 ms before the system completes boot process. During this period, the DLPC1438 controller writes startup values to the FPGA registers.
(d): After FPGA setup is complete, I2C now accepts commands.

Figure 9-1 DLPC1438 Power-Up Timing
GUID-C1038BA7-205F-4101-83A8-62643A84EE67-low.gif

t1: PROJ_ON goes low to begin the power down sequence.
t2: The controller finishes parking the DMD.
t3: Controller power supplies are turned off.
(a): The DMD will be parked within 20 ms of PROJ_ON being deasserted (going low). VDD, VDD_PLLM/D, VCC18, VCC_INITF, and VCC_FLSH power supplies and the PLL_REFCLK must be held within specification for a minimum of 20 ms after PROJ_ON is deasserted (goes low). However, 20 ms does not satisfy the typical shutdown timing of the entire chipset. It is therefore recommended to follow note (c).
(b): DMD reset voltage regulation stops typically after 12 ms of normal DMD park being completed.
(c): It is recommended that SYSPWR not be turned off for 50 ms after PROJ_ON is deasserted (goes low). This time allows the DMD to be parked, the controller to turn off, and the PMIC supplies to shut down.

Figure 9-2 DLPC1438 Normal Power-Down
GUID-B64B87E6-EC49-4C60-BAF3-055ED0D89CE3-low.gif

t1: A fault is detected and PARKZ is asserted (goes low) to tell the controller to initiate a fast park of the DMD.
t2: The controller finishes the fast park procedure.
t3: Eventually all power supplies that were derived from SYSPWR collapse.
t4: System is completely turned off.

Figure 9-3 DLPC1438 Fast Power-Down