Agilent Technologies 16760A manual To set clock threshold voltages

NOTE:

NOTE:

See Also

Chapter 2: Probing and Selecting the Sampling Mode

Formatting Labels for Logic Analyzer Probes

appropriate threshold voltage reference level.

•Select the Differential option. This option appears when the E5379A differential probe is used. It should be selected when differential signals are probed. The difference voltage (Vin+ - Vin-) must be greater than or equal to 200 mV p-p.

•Select the User Defined option and enter the desired threshold voltage value. The threshold level is selectable from -6.0 volts to +6.0 volts.

3.If you don't want the change to apply to all pods and clock input thresholds, deselect the checked box next to Apply threshold setting to all pods.

4.Select the Close button.

The logic analyzer requires a minimum voltage swing of 250 mV for the E5378A single-ended probe or 300 mV for the E5380A MICTOR-compatible probe to recognize changes in logic levels. If you are using the E5379A differential probe, 200 mV differential is required.

The specified pod threshold voltage is also applied to the pod's clock threshold if Apply settings to all pods is selected. However, the pod's clock threshold can also be changed independently.

“To set clock threshold voltages” on page 59

“Using the E5378A Single-Ended Probe” on page 35

“Using the E5379A Differential Probe” on page 37

“Using the E5380A Mictor-Compatible Probe” on page 39

“Using the E5382A Single-ended Flying Lead Probe Set” on page 40

To set clock threshold voltages

The threshold voltage is the voltage level that a signal must cross before the logic analyzer recognizes a change in logic levels.

1.In the Format tab, select the Clk Thresh... button located just below Data On Clocks.

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