3
Setting up a U4432A SMA Differential Probe Configuration
34
Keysight U4431A MIPI M-PHY Protocol Analyzer Hardware and Probing Guide
Labeling and Color Coding of Coaxial Cables
To help you identify the appropriate coaxial cable to use in a given situation, the coaxial cables of the
U4432A probe are labeled and color coded.
The following table lists the label, color coding, and pin number mapping of each of these coaxial
cables.
NOTE
In addition to the M-PHY data lines, the probe also provides a reference clock to the DUT.
However, currently, the U4431A module does not support receiving or supplying an external
reference clock.
Label
Color Coding
Pin Number
Refn
Red with white
5
Refp
Red 7
TX0n
White with white
11
TX0p
White
13
RX0n
Black with white
12
RX0p
Black
14
TX1n
Violet with white
18
TX1p
Violet
20
RX1n
Blue with white
17
RX1p
Blue
19
TX2n
Yellow with white
23
TX2p
Yellow
25
RX2n
Orange with white
24
RX2p
Orange
26
TX3n
Grey with white
30
TX3p
Grey
32
RX3n
Green with white
29
RX3p
Green
31
Clkp
Brown 38
Clkn
Brown with white
36
Vsense
8