SLLU265C March   2018  – April 2024 TUSB1044

 

  1.   1
  2.   Description
  3.   Features
  4.   4
  5. 1Evaluation Module Overview
    1. 1.1 Introduction
    2. 1.2 Kit Contents
  6. 2Hardware
    1. 2.1 TUSB1044EVM
    2. 2.2 TUSB1044EVM Configuration
      1. 2.2.1 TUSB1044 EVM Default Jumper and Switch Configuration
      2. 2.2.2 TUSB1044 EQ Control
      3. 2.2.3 Power
  7. 3Hardware Design Files
    1. 3.1 TUSB1044EVM Schematics
    2. 3.2 Bill of Materials
  8. 4Additional Information
    1. 4.1 Trademarks
  9. 5Revision History

2.2.2 TUSB1044 EQ Control

Each of the TUSB1044 receiver lanes has individual controls for receiver equalization. Table 3-3 through Table 3-5 detail the gain values for each available combination for downstream, upstream, and all DisplayPort™ configurations.

Table 2-3 Config Pin-Level Definitions
Level Settings
0 Option 1: Tie 1kΩ, 5% to GND
Option 2: Tie directly to GND
R Tie 20kΩ, 5% to GND
F Float (leave pin open)
1 Option 1: Tie 1kΩ, 5% to VCC
Option 2: Tie directly to VCC
Table 2-4 USB 3.1 EQ Settings
USB 3.1 Downstream Facing Ports USB 3.1 Upstream Facing Ports
DEQ1 Pin Level DEQ0 Pin Level EQ Gain at 5GHz (dB) UEQ1 Pin Level UEQ0 Pin Level EQ Gain at 5GHz (dB)
0 0 0 0 0 0
0 R 1 0 R 1
0 F 2 0 F 2
0 1 3 0 1 3
R 0 4 R 0 4
R R 5 R R 5
R F 6 R F 6
R 1 7 R 1 7
F 0 8 F 0 8
F R 9 F R 9
F F 10 F F 10
F 1 11 F 1 11
1 0 12 1 0 12
1 R 13 1 R 13
1 F 14 1 F 14
1 1 15 1 1 15
Table 2-5 VOD Linear Range and DC Gain
VOD Linear Range and DC Gain
Setting CFG1 Pin Level CFG0 Pin Level DS DC Gain (dB) US DC Gain (dB) DS VOD (mVpp) US VOD (mVpp)
1 0 0 +1 0 900 900
2 0 R 0 +1 900 900
3 0 F 0 0 900 900
4 0 1 +1 +1 900 900
5 R 0 0 0 1100 1100
6 R R +1 0 1100 1100
7 R F 0 +1 1100 1100
8 R 1 +2 +2 1100 1100
9 F 0 –1 –1 1300 1300
10 F R +2.5 +2.5 1300 1300
11 F F 0 0 1300 1300
12 F 1 +1 +1 1300 1300
13 1 0 –1 0 1300 1300
14 1 R 0 –1 1300 1300
15 1 F 0 +1 1300 1300
16 1 1 +1 0 1300 1300