3
Setting up a U4432A SMA Differential Probe Configuration
32
Keysight U4431A MIPI M-PHY Protocol Analyzer Hardware and Probing Guide
U4432A SMA Differential Probe Description
The U4432A SMA probe is a Keysight probing solution that connects the U4431A Analyzer module to
the target system. This probe is a MIPI M-PHY, 21 leads/6 Gbps SMA cable that provides coaxial
SMA connections for each of the lines of the M-PHY bus.
Though U4433A Differential Flying Lead probe is recommended in most situations, you may find the
U4432A SMA probe particularly useful to get quick connections to a prototype’s existing SMA
connectors.
A single U4432A probe provides support for probing one to four lanes of a Tx or an Rx sublink of an
M-PHY link. For a bidirectional probing, you need a single U4431A module and a set of two U4432A
probes (one probe each for one to four lanes of each sublink).
The U4431A module has two analysis pods located on its front panel that you can use to connect two
U4432A probes with the module.
Probe Components
The following figure displays a U4432A SMA probe with labels pointing to the components of this
probe.
Figure 12
U4432A SMA Probe Components
Coaxial cables with SMA
Connectors
Module Connector
