SLLU394 February   2025 TUSB1146-Q1

 

  1.   1
  2.   Description
  3.   Get Started
  4.   Features
  5.   Applications
  6.   6
  7. 1Evaluation Module Overview
    1. 1.1 Introduction
    2. 1.2 Kit Contents
    3. 1.3 Specification
    4. 1.4 Device Information
  8. 2Hardware
    1. 2.1 Setup
      1. 2.1.1 Power
    2. 2.2 TUSB1146-Q1 Equalization Control
  9. 3Software
    1. 3.1 Firmware Description
  10. 4Hardware Design Files
    1. 4.1 Schematics
    2. 4.2 PCB Layouts
    3. 4.3 Bill of Materials (BOM)
  11. 5Additional Information
    1. 5.1 Trademarks
  12. 6Related Documentation

2.2 TUSB1146-Q1 Equalization Control

Equalization (EQ) can be controlled using I2C or pin-strapping. Each of the TUSB1146-Q1 receiver lanes has individual controls for receiver equalization (see Table 2-2). For a list of the gain values of each available combination of downstream, upstream, and DisplayPort configurations, refer to the TUSB1146-Q1 data sheet.

Table 2-2 Configuration Pin-Level Definitions
LevelSettings
0Option 1: Tie 1kΩ 5% to GND
Option 2: Tie directly to GND
RTie 20kΩ 5% to GND
FFloat (leave pin open)
1Option 1: Tie 1kΩ 5% to VCC
Option 2: Tie directly to VCC