Operation
18
Clock and Data Demultiplexer 44 Gb/s User Guide
4.1.1
Performance Recommendations
Follow the following recommendations for best performance:
1.
When using differential mode connections, ensure the cables are
phase balanced. If the electrical length of one cable is a significant
fraction of a unit interval longer than the other, the quality of the
differential signal will be degraded.
2.
Keep cable lengths short and minimize number of cable bends.
3.
When using a single port of differential output channel for single-
ended measurements, the complementary port must be terminated
with a 50
Ω
termination.
4.1.2
Connector Care
The N4968A features high-quality front and rear panel input and output
connectors. Connector damage will degrade signal fidelity.
Refer to the N4960-90030 N495xA through N498xA Connector Care Reference
Guide at
www.agilent.com/find/N4968A
.
Agilent Technologies also recommends the following:
•
Use a 7 to 10 in-lbs torque wrench when attaching connectors.
•
Consider using connector savers to prolong performance and minimize
damage.
•
Differential connectors may be used single-ended if second end
terminated in 50
Ω
.
Inspect the connectors for the following:
•
Worn or damaged threads
•
Scratches to mating surface
•
Burrs and loose metal particles
•
Dust or foreign material in the space surrounding the center pin
•
Ensure that female contacts are straight and aligned
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