5
Setting up an E5405A Soft Touch Midbus Probe Configuration for U4421A Module
38
Keysight U4421A MIPI D-PHY Analyzer and Exerciser Hardware and Probing Guide
E5405A Soft Touch Midbus Probe - Introduction
The Keysight E5405A probe is a 17-channel, differential, soft touch probe that you can use with the
U4421A module to probe D-PHY signals.
The E5405A probe connects to the DUT via the E5403A retention module and to the U4421A module
via the U4201A/N2815A cable.
Figure 15
E5405A probe
The setup of the E5405A probe broadly involves:
1 Designing a footprint on the target system board (see
)
2 Installing the E5403A retention module on the target system board (see
)
3 Connecting the E5405A probe to the DUT and U4421A module (see
)
When to use an E5405A Probe
An E5405A
probe is suitable for use when the DUT has incorporated the footprint for the E5405A
probe. It provides quick connection to many signals in a small footprint without a header designed
into the target.
You can also use this probe if the DUT’s D-Phy signals are going to SMA connectors and you have a
University of North Carolina IOL "MIPI Soft Touch Keysight Probe Board v2" and the University of
New Hampshire - InterOperabilty Laboratory (UNH-IOL) "MIPI DPhy Reference Termination Board".
Probe tip to connect to
the E5403A retention
module
Cable Connector to
connect to the
U4201A/N2815A cable
