Application Note Overview

DisplayPort continues to support higher resolutions and data rates, robust compliance testing is critical to ensure interoperability across devices and interconnects. This application note provides a structured overview of physical layer testing for DisplayPort transmitters and passive cables, aligned with VESA CTS v2.1. It covers key measurement techniques using Rohde & Schwarz solutions, including oscilloscope-based testing at defined test points, automated workflows with ScopeSuite, and signal integrity analysis through equalization and jitter decomposition. The note also addresses cable characterization using mixed-mode S-parameters on a vector network analyzer, along with TDR-based impedance checks and simulated eye diagram analysis.