Deep Memory
The primary advantage of a deep-memory oscilloscope is sustained sample
rate, allowing you to capture at the maximum sample rate and capture a
much longer time window. For example, you may want to capture a fast
digital event, such as an interrupt line being asserted, while being able to look
far out in time to see when the line was de-asserted. This may require a fast
sample rate to examine the signal fidelity of the interrupt edge, and also
long-time capture to determine how long the interrupt line was asserted.
Another advantage is the ability to capture relatively longer periods of time
or slow time-per-division settings at an adequate sample rate. This allows
you to capture a long event, such as an oscillator starting up, or two events
separated by a long time, such that you can see the entire time frame of
interest. To see the event, the scope must have captured the information at a
fast enough sample rate so that you can see the signal details of interest.
MegaZoom Concepts
Deep Memory
4-4
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