How TDR for PCIe Improves High-Speed Signal Integrity Testing Performance
As PCI Express (PCIe) technology continues to evolve, maintaining reliable signal integrity has become increasingly important. Modern PCIe interfaces support extremely high data rates, making them more sensitive to impedance mismatches, reflections, and transmission losses. Engineers rely on TDR for PCIe to evaluate signal paths, identify discontinuities, and optimize high-speed designs before products reach production. By accurately measuring impedance across PCB traces and interconnects, Time Domain Reflectometry (TDR) helps improve system reliability and overall performance. What Is TDR for PCIe? Time Domain Reflectometry (TDR) is a high-speed measurement technique that sends a fast electrical pulse through a transmission line and analyzes the reflected signal. Any change in impedance along the signal path causes part of the pulse to reflect back. By measuring these reflections, engineers can locate and diagnose issues that may affect PCIe performance. As PCIe ...