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Chapter 2: Probing and Selecting the Sampling Mode
Probing the Device Under Test
You can order mating connectors separately using the Agilent part
number:
• 1253-3620 (or Samtec #ASP-65067-01)
You can order support shrouds separately using the Agilent part
numbers:
• 16760-02302 for PC board thicknesses up to 0.062 in.
• 16760-02303 for PC board thicknesses up to 0.120 in.
Electrical
Considerations
Data inputs
The E5379A differential probe can capture data on differential signals
or single-ended signals.
When capturing data on differential signals, the logic analyzer will
determine high and low states based on the crossover of the data and
negative data inputs.
When capturing data on single-ended signals, either ground the
negative data inputs and adjust the threshold voltage in the user
interface, or connect the negative data inputs to the DC threshold
reference voltage.
Clock input
The clock input on the E5379A differential probe can also be a
differential signal or a single-ended signal, in the same way as
described for the data inputs above. The clock input has a separate,
independent threshold adjustment.
See Also “To set pod threshold voltages” on page 58
“To set clock threshold voltages” on page 59
For complete information, including mechanical considerations such as
pin-out and footprint and electrical considerations such as circuit board
design best practices, refer to the Agilent Technologies E5378A, E5379A,
and E5380A Probes for the 16760A Logic Analyzer user's guide that
comes with the probes.