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

6.15 Flash Interface Timing Requirements

The DLPC3478 flash memory interface consists of a SPI flash serial interface. The DLPC3478 can support 1- to 128-Mb flash memories.(2)(3)(4)
MINMAXUNIT
fclockSPI_CLK frequencySee (1)1.436.0MHz
tp_clkperSPI_CLK period50% reference points27.8704ns
tp_whSPI_CLK pulse duration high50% reference points352ns
tp_wlSPI_CLK pulse duration low50% reference points352ns
ttTransition time – all signals20% to 80% reference points (rising signal)
80% to 20% reference points (falling signal)		0.23.0ns
tp_suSetup time – SPI_DIN valid before SPI_CLK falling edge50% reference points10.0ns
tp_hHold time – SPI_DIN valid after SPI_CLK falling edge50% reference points0.0ns
tp_clqvSPI_CLK clock falling edge to output valid time – SPI_DOUT and SPI_CSZ50% reference points1.0ns
tp_clqxSPI_CLK clock falling edge output hold time – SPI_DOUT and SPI_CSZ50% reference points–3.03.0ns
(1) This range include the ±200 ppm of the external oscillator (but no jitter).
(2) Standard SPI protocol is to transmit data on the falling edge of SPI_CLK and capture data on the rising edge. The DLPC3478 does transmit data on the falling edge, but it also captures data on the falling edge rather than the rising edge. This provides support for SPI devices with long clock-to-Q timing. DLPC3478 hold capture timing has been set to facilitate reliable operation with standard external SPI protocol devices.
(3) With the above output timing, DLPC3478 provides the external SPI device 8.2-ns input set-up and 8.2-ns input hold, relative to the rising edge of SPI_CLK.
(4) For additional requirements of the external flash device view the Section 7.3.4 section.
GUID-59A4FC1F-EBC9-4955-ABFD-B625866B4DB2-low.gifFigure 6-10 Flash Interface Timing