SNLS420D July   2012  – July 2015 DS90UB913Q-Q1 , DS90UB914Q-Q1

PRODUCTION DATA.  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
  4. 4 Revision History
  5. 5 Description continued
  6. 6 Device Comparison Table
  7. 7 Pin Configuration and Functions
  8. 8 Specifications
    1. 8.1  Absolute Maximum Ratings
    2. 8.2  ESD Ratings
    3. 8.3  Recommended Operating Conditions
    4. 8.4  Thermal Information
    5. 8.5  Electrical Characteristics
    6. 8.6  Timing Requirements: Recommended for Serializer PCLK
    7. 8.7  AC Timing Specifications (SCL, SDA) - I2C Compliant
    8. 8.8  Bidirectional Control Bus DC Timing Specifications (SCL, SDA) - I2C Compliant
    9. 8.9  Switching Characteristics: Serializer
    10. 8.10 Switching Characteristics: Deserializer
    11. 8.11 Typical Characteristics
  9. 9 Parameter Measurement Information
    1. 9.1 AC Timing Diagrams and Test Circuits
  10. 10Detailed Description
    1. 10.1 Overview
    2. 10.2 Functional Block Diagram
    3. 10.3 Feature Description
      1. 10.3.1  Serial Frame Format
      2. 10.3.2  Line Rate Calculations for the DS90UB91xQ
      3. 10.3.3  Deserializer Multiplexer Input
      4. 10.3.4  Error Detection
      5. 10.3.5  Description of Bidirectional Control Bus and I2C Modes
      6. 10.3.6  Slave Clock Stretching
      7. 10.3.7  I2C Pass-Through
      8. 10.3.8  ID[x] Address Decoder on the Serializer
      9. 10.3.9  ID[x] Address Decoder on the Deserializer
      10. 10.3.10 Programmable Controller
      11. 10.3.11 Synchronizing Multiple Cameras
      12. 10.3.12 General-Purpose I/O (GPIO) Descriptions
      13. 10.3.13 LVCMOS VDDIO Option
      14. 10.3.14 Deserializer - Adaptive Input Equalization (AEQ)
      15. 10.3.15 EMI Reduction
        1. 10.3.15.1 Deserializer Staggered Output
        2. 10.3.15.2 Spread Spectrum Clock Generation (SSCG) on the Deserializer
    4. 10.4 Device Functional Modes
      1. 10.4.1  DS90UB91xQ-Q1 Operation With External Oscillator as Reference Clock
      2. 10.4.2  DS90UB91xQ-Q1 Operation With Pixel Clock from Imager as Reference Clock
      3. 10.4.3  MODE Pin on Serializer
      4. 10.4.4  MODE Pin on Deserializer
      5. 10.4.5  Clock-Data Recovery Status Flag (LOCK), Output Enable (OEN) and Output State Select (OSS_SEL)
      6. 10.4.6  Multiple Device Addressing
      7. 10.4.7  Powerdown
      8. 10.4.8  Pixel Clock Edge Select (TRFB / RRFB)
      9. 10.4.9  Power-Up Requirements and PDB Pin
      10. 10.4.10 Built-In Self Test
      11. 10.4.11 BIST Configuration and Status
        1. 10.4.11.1 Sample BIST Sequence
    5. 10.5 Register Maps
  11. 11Application and Implementation
    1. 11.1 Applications Information
    2. 11.2 Typical Application
      1. 11.2.1 Design Requirements
        1. 11.2.1.1 Transmission Media
        2. 11.2.1.2 Adaptive Equalizer - Loss Compensation
      2. 11.2.2 Detailed Design Procedure
      3. 11.2.3 Application Curve
  12. 12Power Supply Recommendations
  13. 13Layout
    1. 13.1 Layout Guidelines
    2. 13.2 Layout Example
  14. 14Device and Documentation Support
    1. 14.1 Documentation Support
      1. 14.1.1 Related Documentation
    2. 14.2 Related Links
    3. 14.3 Community Resources
    4. 14.4 Trademarks
    5. 14.5 Electrostatic Discharge Caution
    6. 14.6 Glossary
  15. 15Mechanical, Packaging, and Orderable Information

Package Options

Refer to the PDF data sheet for device specific package drawings

Mechanical Data (Package|Pins)
  • RHS|48
Thermal pad, mechanical data (Package|Pins)
Orderable Information

1 Features

  • 10-MHz to 100-MHz Input Pixel Clock Support
  • Single Differential Pair Interconnect
  • Programmable Data Payload:
    • 10-bit Payload up to 100 MHz
    • 12-bit Payload up to 75 MHz
  • Continuous Low Latency Bidirectional Control Interface Channel With I2C Support at 400 kHz
  • 2:1 Multiplexer to Choose Between Two Input Imagers
  • Embedded Clock With DC-Balanced Coding to Support AC-Coupled Interconnects
  • Capable of Driving up to 25 Meters Shielded Twisted-Pair
  • Receive Equalizer Automatically Adapts for Changes in Cable Loss
  • Four Dedicated General-Purpose Input/Output Pins (GPIO) Available on Both Serializer and Deserializer
  • LOCK Output Reporting Pin and AT-SPEED BIST Diagnosis Feature to Validate Link Integrity
  • 1.8-V, 2.8-V or 3.3-V Compatible Parallel Inputs on Serializer
  • Single Power Supply at 1.8 V
  • ISO 10605 and IEC 61000-4-2 ESD Compliant
  • Automotive-Grade Product: AEC-Q100 Grade 2 Qualified
  • Temperature Range −40°C to +105°C
  • Small Serializer Footprint (5 mm × 5 mm)
  • EMI/EMC Mitigation on Deserializer
    • Programmable Spread Spectrum (SSCG) Outputs
    • Receiver Staggered Outputs

2 Applications

  • Front- or Rear-View Camera for Collision Mitigation
  • Surround View for Parking Assistance

3 Description

The DS90UB91xQ-Q1 chipset offers an FPD-Link III interface with a high-speed forward channel and a bidirectional control channel for data transmission over a single differential pair. The DS90UB91xQ-Q1 chipsets incorporate differential signaling on both the high-speed forward channel and bidirectional control channel data paths. The serializer and deserializer pair is targeted for connections between imagers and video processors in an electronic control unit (ECU). This chipset is ideally suited for driving video data that requires up to 12-bit pixel depth plus two synchronization signals along with bidirectional control channel bus.

There is a multiplexer at the deserializer to choose between two input imagers. The deserializer can have only one active input imager. The primary video transport converts 10- and 12-bit data over a single high-speed serial stream, along with a separate low latency bidirectional control channel transport that accepts control information from an I2C port and is independent of video blanking period.

Device Information(1)

PART NUMBER PACKAGE BODY SIZE (NOM)
DS90UB913Q-Q1 WQFN (32) 5.00 mm × 5.00 mm
DS90UB914Q-Q1 WQFN (48) 7.00 mm × 7.00 mm
  1. For all available packages, see the orderable addendum at the end of the data sheet.

Typical Application Circuit

DS90UB913Q-Q1 DS90UB914Q-Q1 30144627.gif