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

1 Introduction

This document explores the effects on the HDMI 2.1 waveforms by experimentation of the different receiver equalization (EQ), differential output voltage (VoD) and termination register settings. The effects that the TDP1204 control registers have on the eye diagram differ depending on whether the device is in the linear or limited redriver mode. This document provides the resulting waveforms and waveform measurements to show the effects of the modifications of those register settings in either redriver mode.