SNLS417C MARCH   2013  – July 2016 DS90UB928Q-Q1

PRODUCTION DATA.  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
  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  DC Electrical Characteristics
    6. 6.6  AC Electrical Characteristics
    7. 6.7  Timing Requirements for the Serial Control Bus
    8. 6.8  Timing Requirements
    9. 6.9  DC and AC Serial Control Bus Characteristics
    10. 6.10 Typical Characteristics
  7. 7 Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
      1. 7.3.1  High Speed Forward Channel Data Transfer
      2. 7.3.2  Low-Speed Back Channel Data Transfer
      3. 7.3.3  Backward Compatible Mode
      4. 7.3.4  Input Equalization
      5. 7.3.5  Common Mode Filter Pin (CMF)
      6. 7.3.6  Power Down (PDB)
      7. 7.3.7  Video Control Signals
      8. 7.3.8  EMI Reduction Features
        1. 7.3.8.1 LVCMOS VDDIO Option
      9. 7.3.9  Built In Self Test (BIST)
        1. 7.3.9.1 BIST Configuration and Status
          1. 7.3.9.1.1 Sample BIST Sequence
        2. 7.3.9.2 Forward Channel and Back Channel Error Checking
      10. 7.3.10 Internal Pattern Generation
        1. 7.3.10.1 Pattern Options
        2. 7.3.10.2 Color Modes
        3. 7.3.10.3 Video Timing Modes
        4. 7.3.10.4 External Timing
        5. 7.3.10.5 Pattern Inversion
        6. 7.3.10.6 Auto Scrolling
        7. 7.3.10.7 Additional Features
      11. 7.3.11 Image Enhancement Features
        1. 7.3.11.1 White Balance
          1. 7.3.11.1.1 LUT Contents
          2. 7.3.11.1.2 Enabling White Balance
        2. 7.3.11.2 Adaptive Hi-FRC Dithering
      12. 7.3.12 Serial Link Fault Detect
      13. 7.3.13 Oscillator Output
      14. 7.3.14 Interrupt Pin (INTB / INTB_IN)
      15. 7.3.15 General-Purpose I/O
        1. 7.3.15.1 GPIO[3:0]
        2. 7.3.15.2 GPIO[8:5]
      16. 7.3.16 I2S Audio Interface
        1. 7.3.16.1 I2S Transport Modes
        2. 7.3.16.2 I2S Repeater
        3. 7.3.16.3 I2S Jitter Cleaning
        4. 7.3.16.4 MCLK
    4. 7.4 Device Functional Modes
      1. 7.4.1 Clock and Output Status
      2. 7.4.2 FPD-Link Input Frame and Color Bit Mapping Select
      3. 7.4.3 Low Frequency Optimization (LFMODE)
      4. 7.4.4 Mode Select (MODE_SEL)
      5. 7.4.5 Repeater Configuration
        1. 7.4.5.1 Repeater Connections
          1. 7.4.5.1.1 Repeater Fan-Out Electrical Requirements
      6. 7.4.6 Repeater Connections
        1. 7.4.6.1 Repeater Fan-Out Electrical Requirements
    5. 7.5 Programming
      1. 7.5.1 Serial Control Bus
    6. 7.6 Register Maps
  8. 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
        1. 8.2.2.1 Transmission Media
        2. 8.2.2.2 Display Application
      3. 8.2.3 Application Curves
    3. 8.3 AV Mute PreventionAV Mute Prevention section.
    4. 8.4 OEN Toggling LimitationOEN Toggling Limitation.
  9. 9 Power Supply Recommendations
    1. 9.1 Power Up Requirements and PDB Pin
  10. 10Layout
    1. 10.1 Layout Guidelines
      1. 10.1.1 CML Interconnect Guidelines
    2. 10.2 Layout Example
  11. 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 Community Resources
    4. 11.4 Trademarks
    5. 11.5 Electrostatic Discharge Caution
    6. 11.6 Glossary
  12. 12Mechanical, Packaging, and Orderable Information

1 Features

  • Qualified for Automotive Applications AEC-Q100
    • Device Temperature Grade 2: -40°C to +105°C Ambient Operating Temperature Range
    • Device HBM ESD Classification Level ±8 kV
    • Device CDM ESD Classification Level C6
  • Bidirectional Control Channel Interface with I2C Compatible Serial Control Bus
  • Low EMI FPD-Link Video Output
  • Supports High Definition (720p) Digital Video
  • RGB888 + VS, HS, DE and I2S Audio Supported
  • 5 MHz to 85 MHz Pixel Clock Support
  • Up to 4 I2S Digital Audio Outputs for Surround Sound Applications
  • 4 Bidirectional GPIO Channels with 2 Dedicated Pins
  • Single 3.3 V supply with 1.8 V or 3.3 V Compatible LVCMOS I/O Interface
  • AC-Coupled STP Interconnect Up to 10 Meters
  • DC-Balanced and Scrambled Data with Embedded Clock
  • Adaptive Cable Equalization
  • Image Enhancement (White Balance & Dithering) and Internal Pattern Generation
  • Backward Compatible Modes

2 Applications

  • Automotive Displays for Navigation
  • Rear Seat Entertainment Systems
  • Automotive Driver Assistance
  • Automotive Megapixel Camera Systems

3 Description

The DS90UB928Q-Q1 deserializer, in conjunction with a DS90UB925Q-Q1 or DS90UB927Q-Q1 serializer, provides a solution for distribution of digital video and audio within automotive infotainment systems. The device converts a high-speed serialized interface with an embedded clock, delivered over a single signal pair (FPD-Link III), to four LVDS data/control streams, one LVDS clock pair (OpenLDI (FPD-Link)), and I2S audio data. The serial bus scheme, FPD-Link III, supports high-speed forward channel data transmission and low-speed full duplex back channel communication over a single differential link. Consolidation of audio, video data and control over a single differential pair reduces the interconnect size and weight, while also eliminating skew issues and simplifying system design.

Adaptive input equalization of the serial input stream provides compensation for transmission medium losses and deterministic jitter. EMI is minimized by the use of low voltage differential signaling.

Device Information(1)

PART NUMBER PACKAGE BODY SIZE (NOM)
DS90UB928Q-Q1 WQFN (48) 7.00 mm x 7.00 mm
  1. For all available packages, see the orderable addendum at the end of the datasheet.

Application Diagram

DS90UB928Q-Q1 DS90UB928Q_TYP_APP.gif