SLASE75D August   2015  – September 2017 TMDS181

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  Power Supply Electrical Characteristics
    6. 6.6  TMDS Differential Input Electrical Characteristics
    7. 6.7  TMDS Differential Output Electrical Characteristics
    8. 6.8  DDC, I2C, HPD, and ARC Electrical Characteristics
    9. 6.9  Power-Up and Operation Timing Requirements
    10. 6.10 TMDS Switching Characteristics
    11. 6.11 HPD Switching Characteristics
    12. 6.12 DDC and I2C Switching Characteristics
    13. 6.13 Typical Characteristics
  7. 7 Parameter Measurement Information
  8. 8 Detailed Description
    1. 8.1 Overview
    2. 8.2 Functional Block Diagram
    3. 8.3 Feature Description
      1. 8.3.1  Reset Implementation
      2. 8.3.2  Operation Timing
      3. 8.3.3  Swap and Polarity Working
      4. 8.3.4  TMDS Inputs
      5. 8.3.5  TMDS Inputs Debug Tools
      6. 8.3.6  Receiver Equalizer
      7. 8.3.7  Input Signal Detect Block
      8. 8.3.8  Audio Return Channel
      9. 8.3.9  Transmitter Impedance Control
      10. 8.3.10 TMDS Outputs
      11. 8.3.11 Pre-Emphasis/De-Emphasis
    4. 8.4 Device Functional Modes
      1. 8.4.1 Retimer Mode
      2. 8.4.2 Redriver Mode
      3. 8.4.3 DDC Training for HDMI2.0a Data Rate Monitor
      4. 8.4.4 DDC Functional Description
      5. 8.4.5 Mode Selection Functional Description
    5. 8.5 Register Maps
      1. 8.5.1 Local I2C Overview
      2. 8.5.2 Local I2C Control Bit Access TAG Convention
      3. 8.5.3 CSR Bit Field Definitions
        1. 8.5.3.1 ID Registers
        2. 8.5.3.2 MISC CONTROL Register
        3. 8.5.3.3 Equalization Control Register
        4. 8.5.3.4 RX PATTERN VERIFIER CONTROL/STATUS Register
  9. 9 Application and Implementation
    1. 9.1 Application Information
    2. 9.2 Typical Applications
      1. 9.2.1 Source Side Application
        1. 9.2.1.1 Design Requirements
        2. 9.2.1.2 Detailed Design Procedure
        3. 9.2.1.3 Application Curves
      2. 9.2.2 Sink Side Application
      3. 9.2.3 Application Chain Showing DDC Connections
        1. 9.2.3.1 Detailed Design Procedure
          1. 9.2.3.1.1 DDC Pullup Resistors
          2. 9.2.3.1.2 Compliance Testing
            1. 9.2.3.1.2.1 Pin Strapping Configuration for HDMI2.0a and HDMI1.4b
            2. 9.2.3.1.2.2 I2C Control for HDMI2.0a and HDMI1.4b
  10. 10Power Supply Recommendations
  11. 11Layout
    1. 11.1 Layout Guidelines
    2. 11.2 Layout Example
  12. 12Device and Documentation Support
    1. 12.1 Documentation Support
      1. 12.1.1 Related Documentation
    2. 12.2 Related Links
    3. 12.3 Receiving Notification of Documentation Updates
    4. 12.4 Community Resources
    5. 12.5 Trademarks
    6. 12.6 Electrostatic Discharge Caution
    7. 12.7 Glossary
  13. 13Mechanical, Packaging, and Orderable Information

1 Features

  • HDMI™ Input Port to Output Port With CDR Supporting Up to 6 Gbps Data Rates
  • Compatible With HDMI™ Electrical Parameters Up to 6 Gbps in Retimer Mode
  • Support 4k2k60p and Up to WUXGA 16-Bit Color Depth or 1080p With Higher Refresh Rates
  • Retimes Input Stream to Compensate for Random Jitter
  • Adaptive Receiver Equalizer or Programmable Fixed Equalizer
  • I2C and Pin Strap Programmable
  • Inter-Pair Skew Compensation of 5+ Bits
  • Single-Ended Mode ARC Support
  • Link Debug Tools Including Eye Diagram After the RX Equalizer
  • 48-Pin 7-mm × 7-mm 0.5-mm Pitch VQFN Package
  • Extended Commercial Temperature Support 0°C to 85°C (TMDS181)
  • Industrial Temperature Support: –40°C to 85°C (TMDS181I)

2 Applications

  • Digital TV
  • Digital Projector
  • Audio/Video Equipment
  • Blu-ray™ DVD
  • Monitors
  • Desktops/ All-in-Ones
  • Active Cables

3 Description

The TMDS181x is a digital video interface (DVI) or high-definition multimedia interface (HDMI™) retimer. The TMDS181x supports four TMDS channels, audio return channel (SPDIF_IN/ARC_OUT), and digital display control (DDC) interfaces. The TMDS181x supports signaling rates up to 6 Gbps to allow for the highest resolutions of 4k2k60p 24 bits per pixel and up to WUXGA 16-bit color depth or 1080p with higher refresh rates. The TMDS181x can be configured to support the HDMI2.0a standard. The TMDS181x automatically configures itself as a redriver at low data rate (<1.0 Gbps) or as a retimer above this data rate. Redriver mode supports HDMI1.4b with data rates up to 3.4 Gbps

The TMDS181x supports dual power supply rails of 1.2 V on VDD and 3.3 V on VCC for power reduction. Several methods of power management are implemented to reduce overall power consumption. TMDS181x supports fixed receive EQ gain or adaptive receive EQ control by I2C or pin strap to compensate for different lengths input cable or board traces.

Device Information(1)

PART NUMBER PACKAGE BODY SIZE (NOM)
TMDS181 VQFN (48) 7.00 mm × 7.00 mm
TMDS181I
  1. For all available packages, see the orderable addendum at the end of the data sheet.

SPACE

Simplified Schematic

TMDS181 TMDS181I sch_FAD_LASE75.gif
TMDS181 TMDS181I FAD_LASE75.gif