Keysight LPDDR4, Руководство по установке

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Keysight W6600A-series LPDDR4 BGA Interposers Installation Guide 71
Making Power Integrity Measurements using W6600A-series Interposers 8
Correlating Power Integrity Measurements with Memory Analysis Measurements
You can also time correlate power integrity measurements with memory analysis measurements to
gain rapid insight into power integrity issues. For instance, you can use these two measurement sets
to correlate speed changes to level shifts on a power rail or to correlate higher bus utilization to
spikes on a power rail.
To create a setup for these correlated measurements, you need:
• the W6600A-series interposer’s setup with a U4164A interposer for the memory analysis
measurements. This setup is described in Chapter 6 , “Setting up the W6602A Interposer”
• the W6600A-series interposer’s setup with an Infiniium S-series oscilloscope for the power
integrity measurements. This is described in the previous topic.
You may configure the logic analyzer to trigger the oscilloscope or vice versa in this correlated
measurements setup.
You can also view the oscilloscope’s power integrity traces in a logic analyzer’s waveform. This helps
you correlate the logic analyzer signal flow with a power integrity trace.