When a Signal Hits The End of a PCB Track - What happens | Reflections by Eric Bogatin

Ringing caused by reflections can be fixed. What is happening and what to do? Explained by Eric Bogatin. Thank you Eric. Links: - Software used in the video: - Signal Integrity Academy (use FEDSI - 3 months free): - FEDEVEL courses: Chapters: 00:00 Understanding reflections 01:06 Electrically Short vs. Long 02:52 The tool we are using explained 03:48 Simulating: Electrically short 08:04 Reflections on classic CMOS and standard board 10:41 Simulating: Electrically long (e.g. DDR3 / DDR4) 15:16 50 OHM impedance is not 50 OHM resistance 16:39 Simulating a buffer example 18:32 Why we get reflections 20:37 What happens when there is a reflection 25:44 Why reflection disappears 30:08 Frequency of ringing 31:49 How to eliminate reflections 35:37 Signal level change caused by termination 39:25 Source termination ------------------------------------------------------ Would you like to support me? It’s simple: - Sign up for online courses hosted on our platform: - Sign up for my Hardware design and PCB Layout online courses: - You can also support me through Patreon: - Or sign up for my Udemy course: It is much appreciated. Thank you, - Robert