Example of how to measure 2-Port shunt impedance on your (Voltage Regulator Module) VRM.
Power plane impedance is the most common power integrity assessment, and the 2-port shunt through method is the gold standard for that assessment. Sub-milliOhm power plane impedance is necessary to maintain power rail voltages within limits during large transient current demands.
- Arbitrary/Function Generator (built into 6 Series MSO)
- Picotest J2161A Splitter
- 6 Series MSO Oscilloscope
- Picotest J2102B Common Mode Coaxial Transformer for isolation
- Picotest P2102A 2-Port 50Ω Transmission Line Probe
- Picotest DC blocks (x2)
Videos recorded by:
Tony Ambrose, Application Engineer, Tektronix
Steve Sandler, Founder, and CEO of PICOTEST.com