ZHCSMR3A november   2020  – november 2020 DS90UB633A-Q1

PRODUCTION DATA  

  1.   1
  2. 1 特性
  3. 2 应用
  4. 3 说明
  5. 4 Revision History
  6. 5 Pin Configuration and Functions
    1.     Pin Functions
  7. 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  Electrical Characteristics
    6. 6.6  Recommended Serializer Timing For PCLK
    7. 6.7  AC Timing Specifications (SCL, SDA) - I2C-Compatible
    8. 6.8  Bidirectional Control Bus DC Timing Specifications (SCL, SDA) - I2C-Compatible
    9. 6.9  Serializer Switching Characteristics
    10. 6.10 Timing Diagrams
    11. 6.11 Typical Characteristics
  8. 7 Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
      1. 7.3.1 Serial Frame Format
      2. 7.3.2 Line Rate Calculations for the DS90UB633A/662
      3. 7.3.3 Error Detection
      4. 7.3.4 Synchronizing Multiple Cameras
      5. 7.3.5 General Purpose I/O (GPIO) Descriptions
      6. 7.3.6 LVCMOS V(VDDIO) Option
      7. 7.3.7 Pixel Clock Edge Select (TRFB / RRFB)
      8. 7.3.8 Power Down
    4. 7.4 Device Functional Modes
      1. 7.4.1 DS90UB633A/662 Operation With External Oscillator as Reference Clock
      2. 7.4.2 DS90UB633A/662 Operation With Pixel Clock From Imager as Reference Clock
      3. 7.4.3 MODE Pin on Serializer
      4. 7.4.4 Internal Oscillator
      5. 7.4.5 Built-In Self Test
      6. 7.4.6 BIST Configuration and Status
      7. 7.4.7 Sample BIST Sequence
    5. 7.5 Programming
      1. 7.5.1 Programmable Controller
      2. 7.5.2 Description of Bidirectional Control Bus and I2C Modes
      3. 7.5.3 I2C Pass-Through
      4. 7.5.4 Slave Clock Stretching
      5. 7.5.5 IDX Address Decoder on the Serializer
      6. 7.5.6 Multiple Device Addressing
    6. 7.6 Register Maps
  9. 8 Application and Implementation
    1. 8.1 Application Information
      1. 8.1.1 Power Over Coax
      2. 8.1.2 Power-Up Requirements and PDB Pin
      3. 8.1.3 AC Coupling
      4. 8.1.4 Transmission Media
    2. 8.2 Typical Applications
      1. 8.2.1 Coax Application
        1. 8.2.1.1 Design Requirements
        2. 8.2.1.2 Detailed Design Procedure
        3. 8.2.1.3 Application Curves
      2. 8.2.2 STP Application
        1. 8.2.2.1 Design Requirements
        2. 8.2.2.2 Detailed Design Procedure
  10. 9 Power Supply Recommendations
  11. 10Layout
    1. 10.1 Layout Guidelines
      1. 10.1.1 Interconnect Guidelines
    2. 10.2 Layout Example
  12. 11Device and Documentation Support
    1. 11.1 Documentation Support
      1. 11.1.1 Related Documentation
    2. 11.2 Receiving Notification of Documentation Updates
    3. 11.3 支持资源
    4. 11.4 Trademarks
    5. 11.5 静电放电警告
    6. 11.6 术语表
  13. 12Mechanical, Packaging, and Orderable Information
    1. 12.1 Packaging Information
    2. 12.2 Tape and Reel Information

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订购信息

10.2 Layout Example

Stencil parameters such as aperture area ratio and the fabrication process have a significant impact on paste deposition. Inspection of the stencil prior to placement of the WQFN package is highly recommended to improve board assembly yields. If the via and aperture openings are not carefully monitored, the solder may flow unevenly through the DAP. Stencil parameters for aperture opening and via locations are shown in the following:

GUID-150877F7-ADE8-46AB-B04E-2B00234422F0-low.pngFigure 10-1 No Pullback WQFN, Single Row Reference Diagram
Table 10-1 No Pullback WQFN Stencil Aperture Summary for DS90UB633A-Q1
DEVICEPIN COUNTMKT DWGPCB I/O PAD SIZE (mm)PCB PITCH (mm)PCB DAP SIZE(mm)STENCIL I/O APERTURE (mm)STENCIL DAP APERTURE (mm)NUMBER OF DAP APERTURE OPENINGSGAP BETWEEN DAP APERTURE (Dim A mm)
DS90UB633A-Q132RTV0.25 × 0.60.53.1 × 3.10.25 × 0.71.4 × 1.440.2
GUID-3FE65EDA-E7C9-4938-82F4-D4CD6ACE0B99-low.gifFigure 10-2 DS90UB633A-Q1 Serializer DOUT+ Trace Layout
GUID-BAAD2B2D-43C5-48F0-9518-776454299C38-low.gifFigure 10-3 DS90UB633A-Q1 Power-over-Coax Layout

Figure 10-2 and Figure 10-3 are derived from the layout design of the DS90UB633A-Q1 evaluation module (EVM). The EVM is designed for coax operation. The trace carrying high-speed serial signal DOUT+ is critical and must be kept as short as possible. Burying this trace in an internal PCB layer may help reduce emissions. If Power-over-Coax is used, the stub must be minimized by placing the filter network as close as possible to the coax connector. These graphics and additional layout description are used to demonstrate both proper routing and proper solder techniques when designing in this serializer.
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