Chun-ting "Tim" Wang Lee, PhD, is a Signal Integrity Application Scientist in the Electronic Design Automation Group of Keysight Technologies. Wang Lee received his PhD in Electrical Engineering from the University of Colorado at Boulder. He has been focusing on understanding high speed channels and improving simulation and measurement correlation.
The most notable difference between DDR5 and previous generations is the introduction of decision feedback equalization, a technique used in serial link systems to improve the integrity of received signals. In the wake of the new technology, this short article outlines some of the fundamental signal integrity concepts in the context of DDR5.