SLLSF14B June   2017  – May 2019 TUSB546A-DCI

PRODUCTION DATA.  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
    1.     Device Images
      1.      Simplified Schematics
      2.      TUSB546A-DCI Eye Diagram
  4. 4 Revision History
  5. 5 Pin Configuration and Functions
    1.     Pin 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 Characteristics
    6. 6.6  DC Electrical Characteristics
    7. 6.7  AC Electrical Characteristics
    8. 6.8  DCI Specific Electrical Characteristics
    9. 6.9  Timing Requirements
    10. 6.10 Switching Characteristics
    11. 6.11 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 USB 3.1
      2. 8.3.2 DisplayPort
      3. 8.3.3 4-level Inputs
      4. 8.3.4 Receiver Linear Equalization
    4. 8.4 Device Functional Modes
      1. 8.4.1 Device Configuration in GPIO Mode
      2. 8.4.2 Device Configuration In I2C Mode
      3. 8.4.3 DisplayPort Mode
      4. 8.4.4 Linear EQ Configuration
      5. 8.4.5 USB3.1 Modes
      6. 8.4.6 Operation Timing – Power Up
    5. 8.5 Programming
    6. 8.6 Register Maps
      1. 8.6.1 General Register (address = 0x0A) [reset = 00000001]
        1. Table 11. General Registers
      2. 8.6.2 DisplayPort Control/Status Registers (address = 0x10) [reset = 00000000]
        1. Table 12. DisplayPort Control/Status Registers (0x10)
      3. 8.6.3 DisplayPort Control/Status Registers (address = 0x11) [reset = 00000000]
        1. Table 13. DisplayPort Control/Status Registers (0x11)
      4. 8.6.4 DisplayPort Control/Status Registers (address = 0x12) [reset = 00000000]
        1. Table 14. DisplayPort Control/Status Registers (0x12)
      5. 8.6.5 DisplayPort Control/Status Registers (address = 0x13) [reset = 00000000]
        1. Table 15. DisplayPort Control/Status Registers (0x13)
      6. 8.6.6 USB3.1 Control/Status Registers (address = 0x20) [reset = 00000000]
        1. Table 16. USB3.1 Control/Status Registers (0x20)
      7. 8.6.7 USB3.1 Control/Status Registers (address = 0x21) [reset = 00000000]
        1. Table 17. USB3.1 Control/Status Registers (0x21)
      8. 8.6.8 USB3.1 Control/Status Registers (address = 0x22) [reset = 00000100]
        1. Table 18. USB3.1 Control/Status Registers (0x22)
  9. 9 Application and Implementation
    1. 9.1 Application Information
    2. 9.2 Typical Application
      1. 9.2.1 Design Requirements
      2. 9.2.2 Detailed Design Procedure
      3. 9.2.3 Application Curve
    3. 9.3 System Examples
      1. 9.3.1 USB 3.1 Only
      2. 9.3.2 USB 3.1 and 2 Lanes of DisplayPort
      3. 9.3.3 DisplayPort Only
  10. 10Power Supply Recommendations
  11. 11Layout
    1. 11.1 Layout Guidelines
    2. 11.2 Layout Example
  12. 12Device and Documentation Support
    1. 12.1 Device Support
      1. 12.1.1 Development Support
    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

Package Options

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

8.1 Overview

The TUSB546A-DCI is a VESA USB Type-C Alt Mode redriving switch supporting data rates up to 8.1 Gbps for downstream facing port. These devices utilize 5th generation USB redriver technology. The devices are utilized for DFP configurations C, D, E, and F from the VESA DisplayPort Alt Mode on USB Type-C.

The TUSB546A-DCI provides several levels of receive equalization to compensate for cable and board trace loss due to inter-symbol interference (ISI) when USB 3.1 Gen1 or DisplayPort 1.4 signals travel across a PCB or cable. This device requires a 3.3-V power supply. It comes in a commercial temperature range and industrial temperature range.

For a host application the TUSB546A-DCI enables the system to pass both transmitter compliance and receiver jitter tolerance tests for USB 3.1 Gen 1 and DisplayPort version 1.4 HBR3. The re-driver recovers incoming data by applying equalization that compensates for channel loss, and drives out signals with a high differential voltage. Each channel has a receiver equalizer with selectable gain settings. The equalization should be set based on the amount of insertion loss before the TUSB546A-DCI receivers. Independent equalization control for each channel can be set using EQ[1:0], SSEQ[1:0], and DPEQ[1:0] pins.

The TUSB546A-DCI advanced state machine makes it transparent to hosts and devices. After power up, the TUSB546A-DCI. periodically performs receiver detection on the TX pairs. If it detects a USB 3.1 Gen1 receiver, the RX termination is enabled, and the TUSB546A-DCI is ready to re-drive.

The device ultra-low-power architecture operates at a 3.3-V power supply and achieves Enhanced performance. The automatic LFPS De-Emphasis control further enables the system to be USB3.1 compliant.