This 5-minute video builds upon the previous video in this series to focus on the most widely-deployed PCIe architecture – the Common Reference Clock (a.k.a “Common Clock”) architecture.

What topics are covered?
1. Basic representation of the Common Clock architecture
2. Ideal Reference Clock vs. real Reference Clock
3. Modeling Transmit and Receiver filtering effects on the Reference Clock
4. Evolution of the Reference Clock jitter requirements with each new PCIe generation

This brief video explains the options for measuring real-world Reference Clock jitter to determine whether the clock meets the PCIe specifications.

What topics are covered?
1. How do I measure my Reference Clock to determine if it meets the jitter specifications?
2. Measuring with an Oscilloscope
3. Measuring with a Phase Noise Analyzer
4. Post-processing the measured data per the PCIe specification

This 5-minute video describes Spread Spectrum Clocking and how it applies to PCIe systems.

What topics are covered?

1. Electromagnetic Interference (EMI) explained and why it can be a problem in PCIe systems.
2. Approaches used to reduce EMI
3. Spread-Spectrum clocking defined
4. Comparison of a real-world PCIe Spread-Spectrum clock vs. a clock without Spread-Spectrum

This 4-minute video describes the challenges of using high-speed clocks in vehicles and presents various solutions.