SLLA613 august   2023 TUSB1146

 

  1.   1
  2.   Abstract
  3.   Trademarks
  4. 1Introduction
  5. 2Test Description
    1. 2.1 Equalization Configuration
    2. 2.2 Eye Test
    3. 2.3 BER Test
    4. 2.4 Alternative BER Test
  6. 3Test Results
  7. 4Summary
  8. 5References

4 Summary

Using the AEQ over static EQ on the TUSB1146 and other applicable products is recommended. AEQ provides benefits such as improved redriver capabilities, decreased development time, and improved cost efficiency. In the tests provided in this application note, AEQ performs with less bit errors than static EQ across the tested channel lengths and conditions. While static EQ is an effective solution for static channels, AEQ automates the tuning process and can adapt to dynamic system conditions, decreasing development time. Lastly, AEQ makes the TUSB1146 more competitive with retimer designs because of the effectiveness of AEQ combined with the cost benefits of redrivers. This document serves as support for this recommendation, as well a guide for how to use these EQ configuration in applications, and what variables to consider when testing and using an EQ configuration in an application.