Rohde & Schwarz R&S RTP-K28 User manual

R&S®RTP-K28
C-PHY Compliance Test
User Manual
1179647202
Version 01
(;ÝÎÖ2)

This manual describes the C-PHY compliance test procedures with the following option:
●R&S®RTP-K28 (1802.9621.02) - C-PHY
The tests require the R&S ScopeSuite software.
The software contained in this product uses several valuable open source software packages. For information, see the "Open
Source Acknowledgment" document, which is available for download from the R&S RTP product page at http://www.rohde-
schwarz.com/product/rto.html > "Software".
Rohde & Schwarz would like to thank the open source community for their valuable contribution to embedded computing.
© 2022 Rohde & Schwarz GmbH & Co. KG
Muehldorfstr. 15, 81671 Muenchen, Germany
Phone: [phone] - 0
Email: [email protected]
Internet: www.rohde-schwarz.com
Subject to change – data without tolerance limits is not binding.
R&S® is a registered trademark of Rohde & Schwarz GmbH & Co. KG.
MIPI® marks and logos are service marks owned by MIPI Alliance, Inc. and any use of such marks by Rohde & Schwarz is under
license.
All other trademarks are the properties of their respective owners.
1179.6472.02 | Version 01 | R&S®RTP-K28
The following abbreviations are used throughout this manual: R&S®RTP is abbreviated as R&S RTP and R&S®ScopeSuite is abbre-
viated as R&S ScopeSuite.

Contents
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Contents
1 R&S ScopeSuite overview.....................................................................5
2 Preparing the measurements................................................................7
2.1 Test equipment..............................................................................................................7
2.2 Installing software and license.................................................................................... 7
2.3 Setting up the network................................................................................................. 8
2.4 Starting the R&S ScopeSuite....................................................................................... 8
2.5 Connecting the R&S RTP............................................................................................. 9
2.6 Report configuration...................................................................................................10
3 Performing tests...................................................................................12
3.1 Starting a test session................................................................................................12
3.2 Configuring the test.................................................................................................... 13
3.2.1 General test settings..................................................................................................... 14
3.3 Getting test results..................................................................................................... 15
4 C-PHY compliance tests......................................................................17
4.1 Starting C-PHY compliance tests.............................................................................. 17
4.2 Test configuration for C-PHY..................................................................................... 17
4.3 LP-TX signaling requirements (group 1)...................................................................19
4.3.1 Test setup......................................................................................................................19
4.3.2 Performing group 1 test cases...................................................................................... 21
4.3.3 Measurements.............................................................................................................. 22
4.4 HS-TX signaling requirements (group 2) - burst measurements............................37
4.4.1 Test setup......................................................................................................................37
4.4.2 Performing group 2 test cases...................................................................................... 38
4.4.3 Measurements.............................................................................................................. 40
4.5 HS-TX signaling requirements (group 2) - continuous measurements................. 45
4.5.1 Test setup......................................................................................................................45
4.5.2 Performing group 2 test cases...................................................................................... 46
4.5.3 Measurements.............................................................................................................. 48
4.6 HS-TX signaling requirements for eye measurements (group 2)........................... 55

Contents
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4.6.1 Test setup......................................................................................................................55
4.6.2 Performing group 2 test cases...................................................................................... 56
4.6.3 Meausrements.............................................................................................................. 57

R&S ScopeSuite overview
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1 R&S ScopeSuite overview
The R&S ScopeSuite software is used with R&S RTP oscilloscopes. It can be installed
on a test computer or directly on the oscilloscope. For system requirements, refer to
the Release Notes.
The R&S ScopeSuite main panel has several areas:
●"Settings": connection settings to oscilloscope and other instruments also default
report settings
●"Compliance Tests": selection of the compliance test
●"Demo": accesses demo test cases that can be used for trying out the software
without having a connection to an oscilloscope
●"Help": opens the help file, containing information about the R&S ScopeSuite con-
figuration
●"About": gives information about the R&S ScopeSuite software
●"Tile View": allows a personalization of the compliance test selection
You can configure which tests are visible in the compliance test section and which
are hidden, so that only the ones you use are displayed.
► To hide a test from the "Compliance Tests" view, do one of the following:

R&S ScopeSuite overview
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a) Right-click on the compliance test you want to hide.
The icon of the test changes, see Figure 1-1. Now with a left click you can hide
the test.
Figure 1-1: Unpin icon
b) Click on "Title View" to show a list of the available test cases. By clicking a test
case in the show list, you can pin/unpin it from the main panel.

Preparing the measurements
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2 Preparing the measurements
2.1 Test equipment
For C-PHY compliance tests, the following test equipment is needed:
●R&S RTP oscilloscope with 4 channels and at least 13 GHz bandwidth
●The free-of-charge R&S ScopeSuite software, which can be installed on a com-
puter or directly on the oscilloscope.
●Differential probes
●Three singled-ended active probes or SMA cables.
●R&S RTP-K28 C-PHY compliance test option (required option, installed on the
oscilloscope)
●Recommended test fixture for LP-TX tests: MIPI C-PHY Capacitive Load (CLOAD)
fixture
●Recommended termination board for HS-TX tests: MIPI C-PHY Reference Termi-
nation Board (RTB)
2.2 Installing software and license
The preparation steps are performed only once for each computer and instrument that
are used for testing.
Uninstall older versions of the R&S ScopeSuite
If an older version of the R&S ScopeSuite is installed, make sure to uninstall the old
version before you install the new one. You can find the version number of the current
installation in "Help" menu > "About". To uninstall the R&S ScopeSuite, use the Win-
dows " Control Panel" > "Programs".
For best operation results, we recommend that the installed firmware versions of the
R&S ScopeSuite and the oscilloscope are the same.
To install the R&S ScopeSuite
1. Download the latest R&S ScopeSuite software from the "Software" section on the
Rohde & Schwarz R&S RTP website:
www.rohde-schwarz.com/product/rtp.html
www.rohde-schwarz.com/product/rto.html
2. Install the R&S ScopeSuite software:
● On the computer that is used for testing, or
● On the R&S RTP.
Installing software and license

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For system requirements, refer to the Release Notes.
To install the license key on the R&S RTP
► When you got the license key of the compliance test option, enable it on the oscil-
loscope using [Setup] > "SW Options".
For a detailed description, refer to the R&S RTP user manual, chapter "Installing
Options", or to the online help on the instrument.
2.3 Setting up the network
If the R&S ScopeSuite software runs on a test computer, the computer and the testing
oscilloscope require a LAN connection.
There are two ways of connection:
●LAN (local area network): It is recommended that you connect to a LAN with DHCP
server. This server uses the Dynamic Host Configuration Protocol (DHCP) to
assign all address information automatically.
If no DHCP server is available, assign fixed IP addresses to all devices.
●Direct connection of the instruments and the computer or connection to a switch
using LAN cables: Assign fixed IP addresses to the computer and the instruments
and reboot all devices.
To set up and test the LAN connection
1. Connect the computer and the instruments to the same LAN.
2. Start all devices.
3. If no DHCP server is available, assign fixed IP addresses to all devices.
4. Ping the instruments to make sure that the connection is established.
5. If VISA is installed, check if VISA can access the instruments.
a) Start VISA on the test computer.
b) Validate the VISA address string of each device.
See also:
●Chapter 2.5, "Connecting the R&S RTP", on page 9
2.4 Starting the R&S ScopeSuite
To start the R&S ScopeSuite on the test computer or on the oscilloscope:
► Double-click the R&S ScopeSuite program icon.
Starting the R&S ScopeSuite

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To start the R&S ScopeSuite on the instrument, in the R&S RTP firmware:
► In the "Apps" dialog, open the "Compliance" tab.
2.5 Connecting the R&S RTP
If the R&S ScopeSuite is installed directly on the instrument, the software detects the
R&S RTP firmware automatically, and the "Oscilloscope" button is not available in the
R&S ScopeSuite.
If the R&S ScopeSuite software runs on a test computer, the computer and the testing
oscilloscope require a LAN connection, see Chapter 2.3, "Setting up the network",
on page 8. The R&S ScopeSuite software needs the IP address of the oscilloscope to
establish connection.
1. Start the R&S RTP.
2. Start the R&S ScopeSuite software.
3. Click "Settings" > "Oscilloscope".
4. Enter the IP address of the oscilloscope.
To obtain the IP address: press the Rohde & Schwarz logo at the top-right corner
of the oscilloscope's display.
5. Click "Get Instrument Information".
The computer connects with the instrument and gets the instrument data.
Connecting the R&S RTP

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If the connection fails, an error message is shown.
2.6 Report configuration
In the "Report Configuration" menu, you can select the format of the report and the
details to be included in the report. You can also select an icon that is displayed in the
upper left corner of the report.
Also, you can enter common information on the test that is written in the "General Infor-
mation" section of the test report.
Report configuration