3000T Datasheet, PDF (10/40 Pages) Keysight Technologies – InfiniiVision 3000T X-Series Oscilloscopes

10 | Keysight | InfiniiVision 3000T X-Series Oscilloscopes - Data Sheet
Discover: Standard Segmented Smart Memory Allows you to Capture Longer
Periods of Time at High Sample Rates
Acquisition memory size is an essential oscilloscope specification
because it determines sustainable sample rate and the amount
of time you can capture in a single acquisition. In general, longer
memory is better. However, no memory will always be long
enough to capture all the signals you need, especially when
capturing infrequent anomalies, data bursts, or multiple serial
bus packets. Segmented memory acquisition lets you selectively
capture and store important signal activity without capturing
unimportant signal idle time. In addition, it provides a time
stamp of each segment relative to the first trigger event to enable
analysis of the frequency of the event. Segmented memory comes
standard on the 3000T X-Series.
Furthermore, segmented memory discovered that the worst
offender glitch happened 40 seconds from the first trigger event,
or at the 95th glitch. It also found out a unique glitch took place
13 seconds after the first glitch. As shown in figure 13a, you can
overlay all segments to have a comprehensive view as well.
Figure 13 shows segmented memory successfully capturing 100
small and large glitch events at 5 GSa/s in 47 seconds. Traditional
memory architecture would require almost 203 Gpts of memory
to accomplish the same result! This memory is not available on
any scope in the market.
Figure 13a. Screen showing an overlay of all 100 segments for worst case
waveform analysis.
Figure 13. Segmented memory reveals different types of glitches are taking place.