SDAA101 September   2025 TDP142-Q1 , TDP2044 , TUSB1021-Q1 , TUSB1044 , TUSB1044A , TUSB1064-Q1 , TUSB1142 , TUSB1146 , TUSB521-Q1 , TUSB542 , TUSB544 , TUSB5461-Q1 , TUSB564 , TUSB564-Q1

 

  1.   1
  2.   Abstract
  3.   Trademarks
  4. 1Introduction
    1. 1.1 What is USB?
    2. 1.2 What is USB Type-C and How is This Different From Previous USB Specifications?
    3. 1.3 What is DisplayPort?
    4. 1.4 What is DisplayPort Alt. Mode?
  5. 2USB Type-C Part Selection Guide
    1. 2.1 Standard USB Type-C Application
    2. 2.2 DisplayPort Alt. Mode Source Applications:
    3. 2.3 DisplayPort Only Applications
  6. 3Summary
  7. 4References

2.1 Standard USB Type-C Application

The parts covered in this application cannot support DisplayPort Alt. Mode and are typically used to connect a single USB 3.2 TX/RX pair to a USB Type-C connector. All parts in this section have a signal conditioning component.

  • USB 3.2 Gen 1 (5Gbps)
    • TUSB542/ TUSB521-Q1

The TUSB542 and the automotive qualified version, TUSB521-Q1, are both active 2:1 MUXs designed for USB signals. An active MUX is an IC that is able to provide the functionality of a MUX and redriver in one chip. These parts can be used as a loss reducing component in standard USB3.2 Gen 1 systems. Additionally, the parts both are able to take a standard USB TX and RX pair and path these signals out to a USB Type-C connector.

Typical USB Type-C Application for TUSB542 or TUSB521-Q1 Figure 2-1 Typical USB Type-C Application for TUSB542 or TUSB521-Q1
  • TUSB544

The TUSB544 is a 4-lane redriver that is able to provide equalization. This redriver is designed so part can also be used for DisplayPort Alt. Mode systems as well as standard USB Type-C systems. This part has directional control for equalization, so the part can be customized for various applications. For best results, place the TUSB544 after the USB Type-C MUX, and this is usually placed close to the USB Type-C connector.

Typical USB Type-C Application for TUSB544 Figure 2-2 Typical USB Type-C Application for TUSB544
  • USB 3.2 Gen 2 (10Gbps)
    • TUSB1042/ TUSB1142/ TUSB1021-Q1

The TUSB1042 and the automotive qualified version, TUSB1021-Q1, are both active 2:1 MUXs designed for USB signals. An active MUX is an IC that is able to provide the functionality of a MUX and redriver in one chip. These parts can be used as a loss reducing component in standard USB3.2 Gen 1 systems. The TUSB1142 has the same functionality of the TUSB1042 and TUSB1021-Q1, but adds the convenience of adaptive EQ on the USB Type-C signals. This adaptive EQ automatically compensates the signal removing the need for EQ tuning. Additionally, all three are able to take a standard USB TX and RX pair and path these signals out to a USB Type-C connector.

Typical USB Type-C Application for TUSB1042, TUSB1021-Q1, or TUSB1142 Figure 2-3 Typical USB Type-C Application for TUSB1042, TUSB1021-Q1, or TUSB1142
  • TUSB1044/ TUSB1044A

The TUSB1044 and TUSB1044A are 4-lane redrivers that are able to provide equalization. These redrivers are designed to be used for DisplayPort Alt. Mode systems as well as standard USB Type-C systems. These parts have directional control for the parts equalization, so the parts can be customized for various applications. For best results, place the TUSB1044 and TUSB1044A after the USB Type-C MUX, and usually placed close to the USB Type-C connector.

Typical USB Type-C Application for TUSB1044 and TUSB1044A Figure 2-4 Typical USB Type-C Application for TUSB1044 and TUSB1044A