An Overview of Equalization Techniques for Serial Communication Channels

Newer SerDes protocols like PCIe Gen6, USB4, and 100G per-lane Ethernet standards present growing challenges for PCB designers. Data-rates nearly double with each generation, yet circuit board materials often remain unchanged to minimize costs. To address the increased signal loss at higher frequencies, advanced equalization techniques are critical. This talk will explore key aspects of the most widely-used interconnect specifications, focusing on the role of reference equalizers in maintaining signal integrity at these elevated data-rates.