4: Pulse card concepts Model 4200A-SCS Pulse Card (PGU and PMU)
4-10 4200A-PMU-900-01 Rev. B March 2023
Pulsed sourcing tests
Pulsed sourcing can involve any of the following:
• Outputting user-defined two-level pulses.
• Outputting multi-level pulses using the built-in Segment Arb
®
function.
• Outputting an arbitrarily defined waveform using the arbitrary waveform generator in the KPulse
software. The Segment Arb feature allows you to create waveforms from segments defined with
separate voltages and time durations.
In addition to its pulse generator capabilities, the 4225-PMU can measure ac or dc voltage and
current, thereby reducing the need for additional measurement hardware and more complicated
programming. The 4220-PGU is a two-channel pulse generator with output capabilities identical to the
capabilities of the 4225-PMU, but without its measurement functions.
Figure 81: Pulsed sourcing tests
Sequence A definition
Segment Start V Stop V Duration
Sample rate
For the PMU, the maximum measurement sampling rate for each A/D test is 200e6 (200 million)
samples per second. However, there is a limit to the number of samples (one million) that can be
acquired per A/D test. When a test is configured to exceed that limit, the sample rate is automatically
lowered when using ITMs so that fewer than one million samples are acquired.
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