Rohde & Schwarz R&S RTP-K94 User Manual
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Rohde & Schwarz R&S RTP-K94 User Manual

Rohde & Schwarz R&S RTP-K94 User Manual

Ddr5 compliance test
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®
R&S
RTP-K94
DDR5 Compliance Test
User Manual
(A6ÔÒ2)
1706706802
Version 02

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Summary of Contents for Rohde & Schwarz R&S RTP-K94

  • Page 1 ® R&S RTP-K94 DDR5 Compliance Test User Manual (A6ÔÒ2) 1706706802 Version 02...
  • Page 2 This document describes the DDR5 Compliance Test Procedures of the following option: ● ® R&S RTP-K94 (1803.6926.02) Other functionality of the option is described in the instrument's user manual. © 2024 Rohde & Schwarz Muehldorfstr. 15, 81671 Muenchen, Germany Phone: +49 89 41 29 - 0 Email: info@rohde-schwarz.com Internet:...
  • Page 3 ® R&S ScopeSuite overview R&S RTP-K94 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: ●...
  • Page 4 ® R&S ScopeSuite overview R&S RTP-K94 a) Right-click on the compliance test that 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"...

  • Page 5: Preparing The Measurements

    ® Preparing the measurements R&S RTP-K94 Installing software and license 2 Preparing the measurements 2.1 Test equipment For DDR5 compliance tests, the following test equipment is needed: ● R&S RTP with 4 channels and minimum 8GHz bandwidth ● R&S RTP-K94 DDR5 compliance test option (required option, installed on the R&S RTP) ●...
  • Page 6 ® Preparing the measurements R&S RTP-K94 Starting the R&S ScopeSuite 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.
  • Page 7 ® Preparing the measurements R&S RTP-K94 Connecting the R&S RTP 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.

  • Page 8: Report Configuration

    ® Preparing the measurements R&S RTP-K94 Report configuration 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.
  • Page 9 ® Preparing the measurements R&S RTP-K94 Report configuration User Manual 1706.7068.02 ─ 02...

  • Page 10: Performing Tests

    ® Performing tests R&S RTP-K94 Starting a test session 3 Performing tests 3.1 Starting a test session LPDDR5 test cases are currently not supported for FW 5.40.1. After you open a compliance test, the "Session Selection" dialog appears. In this dia- log, you can create new sessions, open or view existing report.
  • Page 11 ® Performing tests R&S RTP-K94 Configuring the test To add a test session 1. In the R&S ScopeSuite window, select the compliance test. 2. In the "Session Selection" dialog press "Add". 3. If necessary change the "Session Name" To open a test session 1.
  • Page 12 ® Performing tests R&S RTP-K94 Configuring the test 3.2.1 General test settings Each session dialog is divided into several sections: ● "Properties": shows the settings that can be made for the test case selected on the left side of the dialog. You can differentiate between the "All" and the sub test prop- erties In the "All"...
  • Page 13 ® Performing tests R&S RTP-K94 Configuring the test be done for all test in the sessions. At the same time, there will be a special mark- ing for the functions that have different settings for different sub tests. ● "Limit Manager": sets the measurement limits that are used for compliance testing, Chapter 3.2.1.1, "Limit manager", on page 13.
  • Page 14 ® Performing tests R&S RTP-K94 Configuring the test 3.2.2 Test configuration for DDR5 The test configuration consists of some test-specific configuration settings. 3.2.2.1 Probes User Manual 1706.7068.02 ─ 02...
  • Page 15 ® Performing tests R&S RTP-K94 Configuring the test In this dialog you can define the probe connections for the test setup. For each connected probe with a tip cable, you can define the signal to which the P, N and GND tips are connected to: ●...
  • Page 16 ® Performing tests R&S RTP-K94 Configuring the test Threshold Settings The following threshold settings are defined: "V " Power supply "V " Ground User Manual 1706.7068.02 ─ 02...
  • Page 17 ® Performing tests R&S RTP-K94 Configuring the test Expected Burst Type Selects the expected burst type of the DUT. You can select between "Read only", "Write only" or "Both". Bus Separation Method Selects the separation method. "DQ-DQS Phase" Checks the phase difference between DQ and DQS to differentiate the type (read or write) of burst.
  • Page 18 ® Performing tests R&S RTP-K94 Configuring the test "Write Postamble Mode" Selects the value of the write postamble mode: 0.5 [0] tCK or 1[000] tCK. "Read Preamble Mode" Selects the value of the write preamble mode: 1 [10] tCK, 2 [0010] tCK,3 [000010] tCK or 4 [00001010] tCK.
  • Page 19 ® Performing tests R&S RTP-K94 Initiating the test Expert Mode If enabled, the "Expert Mode" allows you to bypass the guided steps of the test case. Mask Settings For "Command Address timing (8.2)" and "Chip Select timing (8.2)" tests you can set the "Mask Height"...
  • Page 20 ® Performing tests R&S RTP-K94 Starting DDR5 tests 3.4 Getting test results For each test, the test data - report, diagrams and waveform files - is saved in the fol- lowing folder: %ProgramData%\Rohde-Schwarz\RSScopeSuite\5.40.1\Sessions\ <Protocolgroup>\<Protocol>\<Session_Name>. For each Ethernet test, the test data - report, diagrams and waveform files - is saved in the following folder: %ProgramData%\Rohde-Schwarz\RSScopeSuite\5.40.1\Sessions\ Sessions\<DDR category>\<Session_Name>...
  • Page 21 ® Performing tests R&S RTP-K94 Starting DDR5 tests 1. Select "DDR5" in the R&S ScopeSuite start window. 2. In the "Session Selection" dialog, set the "Select Type" standard. The following "Types" are available: ● "DDR5": Double data rate type three. Used for desktops and servers. 3.
  • Page 22 ® Timing tests R&S RTP-K94 Strobe timing 4 Timing tests 4.1 Strobe timing 4.1.1 Test equipment Item Description, model Quantity Rohde & Schwarz oscilloscope R&S RTP with 4 channels and minimum 8GHz band- width Modular probe probe with minimum 9 GHz bandwidth Probe tip R&S RT-ZMA10 or R&S RT-ZMA14 DDR5 device that supports the selected type...
  • Page 23 ® Timing tests R&S RTP-K94 Strobe timing 5. Enable the tests that you want to run. 6. Click "Test Single". 7. Follow the instructions of the step-by-step guide. When you have finished all steps, the compliance test runs automatically. 8. You can also run the test in offline mode, using downloaded waveforms. For details, see "Offline Execution"...
  • Page 24 ® Timing tests R&S RTP-K94 Strobe timing Depending on the selected "Write Preamble Mode" one of the following tests are per- formed for: ● Preamble mode: t WPRE2 ● Preamble mode: t WPRE3 ● Preamble mode: t WPRE4 4.1.3.2 Write postamble - t WPSTx This test aims to verify that the strobe differential WRITE postamble is within the limits defined in the specification.
  • Page 25 ® Timing tests R&S RTP-K94 CA/CS/CK 4.2 CA/CS/CK 4.2.1 Command address timing 4.2.1.1 Test equipment Item Description, model Quantity Rohde & Schwarz oscilloscope R&S RTP with 4 channels and minimum 8GHz band- width Modular probe probe with minimum 9 GHz bandwidth Probe tip R&S RT-ZMA10 or R&S RT-ZMA14 DDR5 device that supports the selected type...
  • Page 26 ® Timing tests R&S RTP-K94 CA/CS/CK 5. Enable the tests that you want to run. 6. Click "Test Single". 7. Follow the instructions of the step-by-step guide. When you have finished all steps, the compliance test runs automatically. 8. You can also run the test in offline mode, using downloaded waveforms. For details, see "Offline Execution"...
  • Page 27 ® Timing tests R&S RTP-K94 CA/CS/CK CA input pulse width T cIPW This test aims to verify that the CA input pulse width is within the limits defined in the specification. Input slew rate over VcIVW SRIN cIVW This test aims to verify that the input slew rate over V is within the limits defined in cIVW the specification.
  • Page 28 ® Timing tests R&S RTP-K94 CA/CS/CK 5. Enable the tests that you want to run. 6. Click "Test Single". 7. Follow the instructions of the step-by step guide. When you have finished all steps, the compliance test runs automatically. 8. You can also run the test in offline mode, using downloaded waveforms. For details, see "Offline Execution"...
  • Page 29 ® Timing tests R&S RTP-K94 CA/CS/CK CA input pulse width T cIPW This test aims to verify that the CA input pulse width is within the limits defined in the specification. Input slew rate over VcIVW SRIN cIVW This test aims to verify that the input slew rate over V is within the limits defined in cIVW the specification.
  • Page 30 ® Timing tests R&S RTP-K94 CA/CS/CK 5. Enable the tests that you want to run. 6. Click "Test Single". 7. Follow the instructions of the step-by-step guide. When you have finished all steps, the compliance test runs automatically. 8. You can also run the test in offline mode, using downloaded waveforms. For details, see "Offline Execution"...
  • Page 31 ® Timing tests R&S RTP-K94 CA/CS/CK Dj pp value of 1-UI Jitter - t CK_1UI_Dj_NoBUJ This test aims to verify that the deterministic jitter peak-to-peak value of 1-UI without BUJ is within the limits defined in the specification. Tj value of 1-UI Jitter - t CK_1UI_Tj_NoBUJ This test aims to verify that the total jitter value of 1-UI without BUJ is within the limits defined in the specification.

  • Page 32: Level Tests

    ® Level tests R&S RTP-K94 Input levels 5 Level tests 5.1 Input levels 5.1.1 Differential input slew rate for CK 5.1.1.1 Test equipment Item Description, model Quantity Rohde & Schwarz oscilloscope R&S RTP with 4 channels and minimum 8GHz band- width Modular probe Probe with minimum 9 GHz bandwidth...
  • Page 33 ® Level tests R&S RTP-K94 Input levels 5. Enable the tests that you want to run. 6. Click "Test Single". 7. Follow the instructions of the step-by-step guide. When you have finished all steps, the compliance test runs automatically. 8. You can also run the test in offline mode, using downloaded waveforms. For details, see "Offline Execution"...
  • Page 34 ® Level tests R&S RTP-K94 Input levels Differential input slew rate rising - SR(diff) rising This test aims to verify that the setup slew rate for rising signal is within the limits defined in the specification. It is measured from V CK to V CK.
  • Page 35 ® Level tests R&S RTP-K94 Input levels 5. Enable the tests that you want to run. 6. Click "Test Single". 7. Follow the instructions of the step-by-step guide. When you have finished all steps, the compliance test runs automatically. 8. You can also run the test in offline mode, using downloaded waveforms. For details, see "Offline Execution"...
  • Page 36 ® Level tests R&S RTP-K94 Input levels 5.1.2.4 Measurements The input slew rates for data strobe consist of up to two measurements. It tests the lim- its as defined in section 8.9.4 of the JESD79-5B(DDR5) specifications. To measure the DQS slew rate a measurement of V DQS and V DQS is used.
  • Page 37 ® Level tests R&S RTP-K94 Input levels 4. Select "Level Tests" > "Input levels" > "Differential Input Cross Point Voltage for CK". 5. Enable the tests that you want to run. 6. Click "Test Single". 7. Follow the instructions of the step-by-step guide. When you have finished all steps, the compliance test runs automatically.
  • Page 38 ® Level tests R&S RTP-K94 Input levels Differential input cross point voltage - V IX(CK_Ratio) This test aims to verify that the differential input crosspoint voltage is within the limits defined in the specification. It is measured from the actual crosspoint of true and com- plement signals to the midlevel between of VDD and VSS.
  • Page 39 ® Level tests R&S RTP-K94 Input levels 5. Enable the tests that you want to run. 6. Click "Test Single". 7. Follow the instructions of the step-by-step guide. When you have finished all steps, the compliance test runs automatically. 8. You can also run the test in offline mode, using downloaded waveforms. For details, see "Offline Execution"...
  • Page 40 ® Level tests R&S RTP-K94 Overshoot/Undershoot 5.1.4.4 Measurements The differential cross point voltage for data strobe measurement consists of one mea- surement. It tests the limits as defined in section 8.8 of the JESD79-5B(DDR5) specifi- cation. Differential input cross point voltage ratio- V IX(DQS_Ratio) This test aims to verify that the differential input crosspoint voltage ratio is within the limits defined in the specification.
  • Page 41 ® Level tests R&S RTP-K94 Overshoot/Undershoot 5. Enable the tests that you want to run. 6. Click "Test Single". 7. Follow the instructions of the step-by-step guide. When you have finished all steps, the compliance test runs automatically. 8. You can also run the test in offline mode, using downloaded waveforms. For details, see "Offline Execution"...
  • Page 42 ® Level tests R&S RTP-K94 Overshoot/Undershoot Overshoot This test aims to verify the maximum value for CK_t and CK_c is within the limits defined in the specification. Undershoot This test aims to verify the minimum value for CK_t and CK_c is within the limits defined in the specification.

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1803.6926.02

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