Since DigiVIew always compresses the data, we track storage in terms of 'Transitions' rather than the more traditional 'Samples'. The rest of this page will give you a good idea of how many transitions we store. It also converts this to 'Samples' so that you can do an Apples-to-Apples comparison with other instruments.
In general, you will capture about:
Samples ≈ Transitions * Sample-Rate / Data-Rate
Time ≈ Samples * Sample-Rate
In most cases, you will capture 100M transitions. However, if your data rate approaches your sample rate, or over-runs the USB port, the number of transitions captured can be reduced. Note: these extreme edge cases do NOT cause a failure. They simply result in a reduced (but still significant) capture size. See Hybrid Controller for details.
The shear number of permutations of data formats, data speed, bus loads, and mode configurations makes it impractical to present enough examples to fairly represent what you should expect. So we created the following interactive chart to calculate close approximations for each configuration with a variety of data formats and speeds.
The chart does not account for all of the compression nuances or every data pattern, but does provide thousands of permutations and should present an honest representation of real-world results.
|High Duration |