SLLA611 september   2023 TDP1204

 

  1.   1
  2.   Abstract
  3.   Trademarks
  4. 1Introduction
  5. 2TDP1204 Controls for HDMI Compliance Testing
    1. 2.1 Adjusting Equalization for the Short Cable Model
    2. 2.2 Adjusting Equalization for the Worst Cable Model
    3. 2.3 Adjusting Differential Output Swing
    4. 2.4 Adjusting Termination
  6. 3Transmitter Emphasis Control
  7. 4Summary
  8. 5References

Abstract

Depending upon the intended application, the TDP1204 acts as either a linear or limited HDMI 2.1 redriver to assist in passing HDMI 2.1 compliance testing by improving signal integrity of the high-speed signals. However, both board-level design and misconfiguring the TDP1204 device registers present potential challenges in passing the HDMI 2.1 compliance testing. This document provides qualitative and quantitative data to show how modification of the TDP1204 device registers adjusts the signal waveform to overcome the potential failures within HDMI 2.1 compliance testing.