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Sample Rate

The Sample Rate list defines the frequency the logic analyzer uses to sample the input signals.

The available sampling rates depend on the Input Mode, Active Channels, and Sample Mode values. Therefore, these setup values must be chosen before choosing the sampling rate.

Best Practices

To capture an accurate representation of the raw input signals, we recommend the following oversampling ratios for each Sample Mode...

Normal Timing: min 5X to max 10X oversample

Glitch Timing: min 5X to max 10X oversample

Transitional Timing: min 10X to max 50X oversample

Serial Bus Trigger: min 10X to max 50X oversample

Sampling below the minimum oversample rate may result in inaccurate representations of the raw signals. The trigger setup may also not work well in this case.

Exceeding the maximum oversample rate often captures unwanted noise. Slowing down the sample rate may help to ignore this noise.

Extreme oversampling rates can sample too much during the signal rise-time and fall-time. The result are narrow glitches in the trace capture near rising and falling edges.

For these reason, we don't recommend extreme oversampling even when Transitional Timing or Serial Bus Trigger modes are used.

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