Keysight U4431A MIPI M-PHY Protocol Analyzer Hardware and Probing Guide
37
Setting up a U4432A SMA Differential Probe Configuration
3
Connecting the U4432A Probe to the U4431A Module and DUT
The U4432A probe connects to the DUT via 50-ohm coaxial cables using SMA connectors.
1 Plug the module connector (refer figure on
) of the U4432A probe to one of the pods on
the front panel of the U4431A module.
Figure 14
U4431 Module Connection Pod
2 Hand-tighten the thumb screws on both sides of the module connector of the probe.
3 Connect the appropriate coaxial cables (with SMA connectors) of the probe to the DUT. (You can
to verify which coaxial cables to connect.)
a
Based on the link width needed, connect the set of cables for M-Phy data lanes 0 to 3.
You may leave the coaxial cables for the unused data lanes disconnected.
b
Connect the cable for the DUT’s supply voltage sense signal (labeled
Vsense
) to the DUT’s
power supply. The DUT sends this signal to the module to indicate when the module can
actively send M-Phy signals to the DUT.
Pod1 on module
NOTE
While detaching a probe’s module connector from the U4431A module, disengage the screws
completely from the module and then pull the module connector straight out to remove.
CAUTION
Components on the U4432A probe are sensitive to the static electricity. Therefore, take necessary
anti-static precautions, such as wear a grounded wrist strap, to minimize the possibility of
electrostatic damage.
