Measurement Fundamentals
Oscilloscope Noise Floor
Description:
The noise floor is one of the most basic test limitations when performing a measurement. The limitations of the noise floor can be determined by looking at the RMS noise of the oscilloscope, which can be measured by using the measurement functions of the oscilloscope itself.
Instrument: Oscilloscope
PI Class Parts Kit Components: N/A
Injectors: N/A
Probes: N/A
Demo Board: N/A
Setup File: edge speed.dfl
Impedance Matching
Description:
Proper impedance matching is required in order to make measurements correctly. At least one side of the measurement should match the impedance of the cable being used in the measurement. This test measures a signal and shows how the measurement can be affected by proper and improper impedance matching.
Instrument: Oscilloscope
PI Class Parts Kit Components:1Ω Resistor (Optional)
Injectors: Picotest Harmonic Comb,
P2130A(Optional)
Probes: N/A
Demo Board: N/A
Setup File: edge speed.dfl
VNA Noise Floor
Description:
The measurement of low impedances can be difficult due to the limitations of various measurement techniques and test equipment. The two‐port shunt‐thru method allows the measurement of ultra‐low impedance values (uohms to ohms) and is the predominant measurement for PDN applications.
Instrument: Bode 100 Vector Network Analyzer
PI Class Parts Kit Components: N/A
Injectors: N/A
Probes: N/A
Demo Board: N/A
Setup File: VNA noise.bode3
