SLLA626 September   2023 HD3SS460

 

  1.   1
  2.   Abstract
  3.   Trademarks
  4. 1Introduction
  5. 2Migrating from TI HD3SS460 to TMUXHS4446
    1. 2.1 Pinout Differences
    2. 2.2 Package Differences
    3. 2.3 Protocol Differences
  6. 3PCB Layout Recommendations
  7. 4Summary
  8. 5References

3 PCB Layout Recommendations

Due to the sensitive nature of high-speed signals, there are specific layout recommendations that must be followed to preserve signal integrity. These layout recommendations are consistent for HD3SS460 and TMUXHS4446. The most important high-speed layout recommendations are as follows:

  1. Minimize the trace length to prevent channel loss.
  2. Match the signal length for positive and negative parts of differential signals.
  3. Minimize the number of VIAS to prevent loss.

For a comprehensive guide covering high-speed layout recommendations, see the High-Speed Interface Layout Guidelines application note.