SNLS477D October   2014  – February 2022 DS90UB948-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  Switching Characteristics
    9. 6.9  Timing Diagrams and Test Circuits
    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  FPD-Link III Port Register Access
      4. 7.3.4  Oscillator Output
      5. 7.3.5  Clock and Output Status
      6. 7.3.6  LVCMOS VDDIO Option
      7. 7.3.7  Power Down (PDB)
      8. 7.3.8  Interrupt Pin — Functional Description and Usage (INTB_IN)
      9. 7.3.9  General-Purpose I/O (GPIO)
        1. 7.3.9.1 GPIO[3:0] and D_GPIO[3:0] Configuration
        2. 7.3.9.2 Back Channel Configuration
        3. 7.3.9.3 GPIO Register Configuration
      10. 7.3.10 SPI Communication
        1. 7.3.10.1 SPI Mode Configuration
        2. 7.3.10.2 Forward Channel SPI Operation
        3. 7.3.10.3 Reverse Channel SPI Operation
      11. 7.3.11 Backward Compatibility
      12. 7.3.12 Adaptive Equalizer
        1. 7.3.12.1 Transmission Distance
        2. 7.3.12.2 Adaptive Equalizer Algorithm
        3. 7.3.12.3 AEQ Settings
          1. 7.3.12.3.1 AEQ Start-Up and Initialization
          2. 7.3.12.3.2 AEQ Range
          3. 7.3.12.3.3 AEQ Timing
      13. 7.3.13 I2S Audio Interface
        1. 7.3.13.1 I2S Transport Modes
        2. 7.3.13.2 I2S Repeater
        3. 7.3.13.3 I2S Jitter Cleaning
        4. 7.3.13.4 MCLK
      14. 7.3.14 Repeater
        1. 7.3.14.1 Repeater Configuration
        2. 7.3.14.2 Repeater Connections
          1. 7.3.14.2.1 Repeater Fan-Out Electrical Requirements
      15. 7.3.15 Built-In Self Test (BIST)
        1. 7.3.15.1 BIST Configuration and Status
          1. 7.3.15.1.1 Sample BIST Sequence
        2. 7.3.15.2 Forward Channel and Back Channel Error Checking
      16. 7.3.16 Internal Pattern Generation
    4. 7.4 Device Functional Modes
      1. 7.4.1 Configuration Select MODE_SEL[1:0]
        1. 7.4.1.1 1-Lane FPD-Link III Input, Single Link OpenLDI Output
        2. 7.4.1.2 1-Lane FPD-Link III Input, Dual Link OpenLDI Output
        3. 7.4.1.3 2-Lane FPD-Link III Input, Dual Link OpenLDI Output
        4. 7.4.1.4 2-Lane FPD-Link III Input, Single Link OpenLDI Output
        5. 7.4.1.5 1-Lane FPD-Link III Input, Single Link OpenLDI Output (Replicate)
      2. 7.4.2 MODE_SEL[1:0]
        1. 7.4.2.1 Dual Swap
      3. 7.4.3 OpenLDI Output Frame and Color Bit Mapping Select
    5. 7.5 Image Enhancement Features
      1. 7.5.1 White Balance
      2. 7.5.2 LUT Contents
      3. 7.5.3 Enabling White Balance
        1. 7.5.3.1 LUT Programming Example
      4. 7.5.4 Adaptive Hi-FRC Dithering
    6. 7.6 Programming
      1. 7.6.1 Serial Control Bus
      2. 7.6.2 Multi-Controller Arbitration Support
      3. 7.6.3 I2C Restrictions on Multi-Controller Operation
      4. 7.6.4 Multi-Controller Access to Device Registers for Newer FPD-Link III Devices
      5. 7.6.5 Multi-Controller Access to Device Registers for Older FPD-Link III Devices
      6. 7.6.6 Restrictions on Control Channel Direction for Multi-Controller Operation
    7. 7.7 Register Maps
      1. 7.7.1 DS90UB948-Q1 Registers
  8. 8 Application and Implementation
    1. 8.1 Application Information
    2. 8.2 Typical Applications
      1. 8.2.1 Design Requirements
      2. 8.2.2 Detailed Design Procedure
        1. 8.2.2.1 FPD-Link III Interconnect Guidelines
        2. 8.2.2.2 AV Mute Prevention
        3. 8.2.2.3 Prevention of I2C Errors During Abrupt System Faults
      3. 8.2.3 Application Curves
  9. 9 Power Supply Recommendations
    1. 9.1 Power-Up Requirements and PDB Pin
    2. 9.2 Power Sequence
  10. 10Layout
    1. 10.1 Layout Guidelines
    2. 10.2 Ground
    3. 10.3 Routing FPD-Link III Signal Traces
    4. 10.4 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 Support Resources
    4. 11.4 Trademarks
    5. 11.5 Electrostatic Discharge Caution
    6. 11.6 Glossary
  12. 12Mechanical, Packaging, and Orderable Information

Package Options

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

4 Revision History

Changes from Revision C (December 2020) to Revision D (February 2022)

  • Clarified max channel insertion loss over frequencyGo
  • Clarified the description of the clock and data differential output pins.Go
  • Changed IDx pin voltage from VDD18 to VDD33.Go
  • Removed normal mode PASS function since PASS is used only in BIST modeGo
  • Updated the inclusive termonologies for SPI and I2C by changing "master" and "slave" wordingGo
  • Updated the SPI pin names from "MOSI" to "PICO", "MISO" to "POCI", and "SS" to "CS"Go
  • Changed the I2S mode names from Slave Mode to Surround Sound Mode, and from Master Mode to Auxiliary Audio ModeGo
  • Added some missing units for current and voltage Go
  • Modified the list of compatible devicesGo
  • Removed PASS from the table since PASS functionality is only used for BIST mode.Go
  • Corrected the Nyquist Frequency for PCLK 192MHzGo
  • Added clarifying notes for BIST function.Go
  • Added a clarifying note on using I2C while PATGEN is enabled.Go
  • Added new section "Dual Swap"Go
  • Clarified LVDS mapping namesGo
  • LVDS Formats table addedGo
  • Added clarifying notes to LUT contents. Go
  • Added LUT Programming ExampleGo
  • Added clarifying notes about I2C access over the BCC Go
  • Specified which registers are not being reset when digital reset is applied.Go
  • Changed default value of register 0x01[2] and added clarifying notesGo
  • Changed default value of register 0x03[7]Go
  • Changed reset value of register 0x1D, and changed default value for bits [7:4]Go
  • Changed reset value for registers 0x1E and 0x1F to 0x00Go
  • Added clarifying note to register 0x22, that surround audio is not supported in repeater mode when 18-bit video mode is enabled.Go
  • Added minimum value to register 0x26 Go
  • Changed default value for register 0x45[7:5] and changed to R/W. Added clarifying note. Go
  • Changed default value for register 0x4B[3:2] and changed to R/W. Added clarifying note.Go
  • Added clarifying note to CMLOUT function in register 0x57.Go
  • Changed default value for register 0xF4Go
  • Corrected the name of the Pattern Generation Application Note in the Related Documentation section. Go

Changes from Revision B (November 2020) to Revision C (December 2020)

  • Added feature bullet Functional Safety CapableGo

Changes from Revision A (January 2016) to Revision B (November 2018)

  • Changed PCLK frequency to support higher speed 192 MHz. Go
  • Simplified the typical application by removing the power supplies nodes. Go
  • Removed bolded pin description name for power supplies. Go
  • Added new pin description content to the Pin Functions table Go
  • Changed the description from VDDIO to V(I2C). Go
  • Specified in current instead of resistor for all pulldown resistor Go
  • Removed 200-µA minimum ramp time for PDB pin description. Go
  • Added the description to clarify the INTB_IN that this pin can be an output driver.Go
  • Changed pin names from CAP_PLL0 and CAP_PLL1 to RES0 and RES1 respectively. Go
  • Removed tablenote from the Absolute Maximum Ratings table: For soldering specifications, see product folder at www.ti.com and SNOA549 Go
  • Added Military/Aerospace tablenote to the Absolute Maximum Ratings table Go
  • Changed supply voltage maximum for the VDD33 from: 4 V to: 3.96 V Go
  • Changed VDD12 abs max from 1.8V to 1.44V. Go
  • Changed supply voltage for the VDDIO from: 4 V to: 3.96 V Go
  • Added the Added the open-drain voltage, CML output voltage, and FPD-Link III input voltage parameters to the Absolute Maximum Ratings table , open-drain voltage, CML output voltage, and FPD-Link III input voltage parameters to the Absolute Maximum Ratings table Go
  • Added test conditions to the LVCMOS I/O voltage parameter Go
  • Spelled out all GPIOs pin name.Go
  • Combined the ESD ratings into one ESD Ratings table Go
  • Removed VDD18 test condition from the supply voltage parameter Go
  • Added the open-drain voltage parameter to the Recommended Operating Conditions table Go
  • Changed open LDI clock frequency (dual link) maximum from: 170 MHz to: 192 MHz Go
  • Added the local I2C frequency parameter to the Recommended Operating Conditions table Go
  • Added test conditions to the supply noise parameter Go
  • Changed the total power consumption, normal operation test conditions Go
  • Changed "VDD12 = 1.2 V" to "VDD12 = 1.2 V"Go
  • Removed the checkerboard vs. PRBS pattern condition and combined typical and worst case together. Go
  • Added current specs for PCLK 192 MHz. Go
  • Deleted typical value for Vih and Vil in 3.3V LVCMOS I/O.Go
  • Split out the test conditions in the 3.3-V and 1.8-V LVCMOS I/O parameters Go
  • Added strap pin input current parameter to the DC Electrical Characteristics table Go
  • Deleted typical value for Vih and Vil in 1.8V LVCMOS I/O. Go
  • Deleted typical value for Vih and Vil in serial control bus Go
  • Added test conditions to the input high level and input low level parameters Go
  • Changed "complimentary" to "complementary" Go
  • Removed tablenote from the AC Electrical Characteristics table: This parameter is specified by characterization and is not tested in production. Go
  • Changed differential output eye height from: >300 mV to: 300 mV Go
  • Added input jitter tolerance specs. Go
  • Removed tablenote from the Timing Requirements table: Parameter is specified by bench characterization and is not tested in production. Go
  • Changed Cb fast mode plus maximum value from: 550 pF to: 200 pF Go
  • Removed tablenote from the Switching Characteristics table: Parameter is specified by bench characterization and is not tested in production. Go
  • Changed Deserializer Eye Diagram graph in the Typical Characteristics sectionGo
  • Added paragraph explains HSCC mode.Go
  • Changed transmission distance section and insertion loss tableGo
  • Changed PCLK frequncy from 96 MHz to 192 MHz in the diagram "2-lane FPD-link Input, Link OpenLDI Output" in the Data-Path Configurations graphicGo
  • Changed the resistor ratio value for both the Configuration Select (MODE_SEL0) and Configuration Select (MODE_SEL1) tables.Go
  • Deleted repeated first paragraph LUT contents. Go
  • Changed pullup power supply node from "VDDIO" to "V(I2C). Go
  • Updated register table format to the latest TI standards in the Register Maps sectionGo
  • Changed input value from 1.2 V to 1.2 V in typical application drawings Go
  • Updated STP diagram. Go
  • Updated Coax diagramGo
  • Simplified the diagram by removing power supplies node. Go
  • Added new design parameters to the Design Requirements section Go
  • Changed VDD12 in Design Parameters 1.2 to 1.2 Go
  • Changed CML Interconnect Guidelines section title to FPD-Link III Interconnect Guidelines Go
  • Added AV Mute Prevention section Go
  • Added Prevention of I2C Errors During Abrupt System Faults section Go
  • Moved the Power Sequence graphic to the Power Supply Recommendations Go
  • Removed power supplies columns and changed the parameters in the Power-Up Sequencing Constraints table according to the diagram. Go
  • Moved the PCB Layout and Power System Considerations content to the Layout Guidelines section Go
  • Added Ground and Routing FPD-Link III Signal Traces sections to the Layout sectionGo
  • Added Added FPD-Link training videos to the Related Documentation section. Go

Changes from Revision * (October 2014) to Revision A (January 2016)

  • Added shared pins description on SPI pins Go
  • Added shared pins description on GPIO pins Go
  • Added shared pins description on D_GPIO pins Go
  • Added shared pins description on register only GPIO pins. Changed "Local register control only" to "I2C register control only". Go
  • Added shared pins description on slave mode I2S pins Go
  • Added shared pins description on Controller mode I2S pins Go
  • Added legend for I/O TYPEGo
  • Moved Storage Temperature Range from ESD to Absolute Maximum Ratings table Go
  • Added ESD Ratings tableGo
  • Changed IDD12Z limit from 8mA to 30mA per PE re-characterization Go
  • Changed VOS from 1.0V to 1.125V Go
  • Changed VOS from 1.5V to 1.375V Go
  • Changed Fast Plus Mode tSP maximum from 20ns to 50ns Go
  • Added Image Enhancement Features section Go
  • Added description to register 0x01[1] "Registers which are loaded by pin strap will be restored to their original strap value when this bit is set. These registers show ‘Strap’ as their default value in this table." Go
  • Corrected 0x02[7]register default value from "0" to "1" Go
  • Added to 0x02[7] in Description column "A Digital reset 0x01[0] should be asserted after toggling Output Enable bit LOW to HIGH" Go
  • Corrected 0x02[4] register default value from 0 to 1 Go
  • Added "Loaded from remote SER" in register 0x07[7:1] function columnGo
  • Added "/1" Go
  • Changed signal detect bit to reserved Go
  • Changed from Reserved to Rev-ID in register 0x1D Function column Go
  • Changed from Reserved to Rev-ID Go
  • On register 0x22 added "(Loaded from remote SER)"Go
  • Corrected in register 0x24[3] 0: Bist configured through "bit 0" to "bits 2:0" in description Go
  • Added in register 0x24[2:1] additional descriptionGo
  • Changed in register 0x24[1] description to "internal" Go
  • Changed in register 0x24[2] description to "internal" Go
  • On register 0x28 added "Loaded from remote SER"Go
  • Added clarification description on register 0x37 MODE_SELGo
  • Merged on 0x45 bits[7:4} and bits[3:0] default value: 0x08Go
  • Added Power Sequence section Go