QPHY-BroadR-Reach BroadR-Reach Serial Data Operator’s Manual Revision B – November, 2013 Relating to the Following Release Versions: • Software Version Rev. 7.3 • BroadR-Reach Script Rev. 7.3 • Style Sheet Rev. 1.2.
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QPHY-BroadR-Reach Software Option TABLE OF CONTENTS INTRODUCTION TO QUALIPHY BROADR-REACH ..................................................... 5 Required Equipment ..................................................................................................................................... 5 USING QUALIPHY BROADR-REACH ........................................................................... 6 QUALIPHY COMPLIANCE TEST PLATFORM ..............................................................
TABLE OF FIGURES Figure 1 - Report menu in QualiPHY General Setup................................................................................ 7 Figure 2 - The Test Report includes a summary table with links to the detailed test results ............. 8 Figure 3 - QualiPHY main menu and compliance test Standard selection menu ............................... 10 Figure 4 - QualiPHY configuration selection menu. ..............................................................................
QPHY-BroadR-Reach Software Option INTRODUCTION TO QUALIPHY BROADR-REACH QPHY-BroadR-Reach is an automated test package performing all of the normative real time oscilloscope tests for sources in accordance with the BroadR-Reach Physical Layer Transceiver Specification For Automotive Applications, v.2.0. The software can be run on any Teledyne LeCroy Zi and Xi Series oscilloscope with at least 1 GHz bandwidth and a sample rate of at least 10GS/s (WaveRunner series and up).
USING QUALIPHY BROADR-REACH QualiPHY BroadR-Reach guides the user, step-by-step, through each of the tests described in the BroadR-Reach specification: BroadR-Reach Physical Layer Transceiver Specification For Automotive Applications, v.2.0. To do this, the user must set up a test session. Before beginning testing, users choose the test configuration they wish to run. There are two pre-loaded test configurations.
QPHY-BroadR-Reach Software Option QUALIPHY COMPLIANCE TEST PLATFORM QualiPHY is Teledyne LeCroy’s compliance test framework which leads the user through the compliance tests. QualiPHY displays connection diagrams to ensure tests run properly, automates the oscilloscope setup, and generates complete, detailed reports. The QualiPHY software application automates the test and report generation.
See the QualiPHY Operator’s Manual for more information on how to use the QualiPHY framework.
QPHY-BroadR-Reach Software Option Oscilloscope Option Key Installation The required option keys must be purchased to enable the QPHY-BroadR-Reach compliance tests. Call Teledyne LeCroy Customer Support to place an order and receive the codes. 1. ... Enter the key and enable the purchased option as follows: 2. ... From the oscilloscope menu select Utilities Utilities Setup... 3. ... Select the Options tab and click the Add Key button. 4. ... Enter the Key Code(s) using the on-screen keyboard. 5. ...
Accessing the QPHY-BroadR-Reach Software using QualiPHY This topic provides a basic overview of QualiPHY’s capabilities. Please refer to the QualiPHY Operator’s Manual for detailed information. Access the QPHY-BroadR-Reach software using the following steps: 1. Wait for the oscilloscope to start and have its main application running. 2. Launch QualiPHY from the Analysis menu if installed on the oscilloscope or from the desktop icon if installed on a host computer. 3.
QPHY-BroadR-Reach Software Option 4. Click the Configuration button in the QualiPHY main menu: 5. Select a configuration from the pop-up menu: Figure 4 - QualiPHY configuration selection menu. 6. Click Start. 7. Follow the pop-up window prompts.
Customizing QualiPHY The predefined configurations in the Configuration screen cannot be modified. However, you can create your own test configurations by copying one of the standard test configurations and making modifications. A description of the test is also shown in the description field when selected.
QPHY-BroadR-Reach Software Option Creating Custom Configurations Beginning with any of the pre-loaded configurations, 1. Click on the Test Selector tab to change what tests you would like to be included in your new configuration. 2. Click on the Variable Setup tab to change the variables for your new configuration. 3. Click on the Limits tab to change which limit set should be used for your new configuration •See QualiPHY Manual for more information 4.
Figure 6 - Variable Setup and Limits Manager windows 14 922533 Rev B
QPHY-BroadR-Reach Software Option QPHY-BroadR-Reach Operation After pressing Start in the QualiPHY menu, the software instructs how to set up the test using pop-up connection diagrams and dialog boxes.
BROADR-REACH MEASUREMENT PREPARATION Before beginning any test or data acquisition, the oscilloscope should be warmed for at least 20 minutes. Calibration is automatic under software control and no manual calibration is required. This procedure will be run again if the temperature of the oscilloscope changes by more than a few degrees. Required Test Modes The QPHY-BroadR-Reach script requires the operator to place the DUT (Device Under Test) in the required test modes.
QPHY-BroadR-Reach Software Option Due to the variety of different potential connectors on the UTP cable, the operator may choose to create a SMA Breakout fixture which will mate with their connector. Figure 10 - Example of Custom SMA Breakout fixture QPHY-BROADR-REACH TEST CONFIGURATIONS Test configurations include variable settings, limit sets, and test selections. See the QPHY-BroadRReach Variables section for a description of each variable value and its respective default value.
QPHY-BROADR-REACH VARIABLES Acquire Live Data If this is set “True”, the script will perform an acquisition after setting the horizontal scale. You can set this “False” if the waveform(s) being tested are in Memories or will be recalled into Memories.
QPHY-BroadR-Reach Software Option QPHY-BROADR-REACH LIMIT SETS The limits in use by QPHY-BroadR-Reach are specified in the BroadR-Reach Physical Layer Transceiver Specification For Automotive Applications, v.2.0.
QPHY-BROADR-REACH TEST DESCRIPTIONS For additional information about the tests supported by QPHY-BroadR-Reach please refer to the BroadR-Reach Physical Layer Transceiver Specification For Automotive Applications, v.2.0. The descriptions in the following tests will refer to various sections of this document. Test 1 - Transmitter Output Droop This test measures the transmitter output droop as specified in Section 5.4.1. This test requires that the DUT be placed in test mode 1.
QPHY-BroadR-Reach Software Option Figure 12 – Transmitter Output Droop Shown on this screen: • F1 is the input differential signal which the measurements will be performed on In the measurement section: • T1 is the zero crossing time of the positive edge and t2 is the zero crossing time of the negative edge. • Vpk+ is the maximum value of input signal and Vpk- is the minimum value of input signal.
Test 2 - Transmitter Jitter (Master) and Transmit Clock Frequency This test measures the MDI output jitter, JTXOUT, as specified in Section 5.4.3 and the transmit clock frequency as specified in Section 5.4.5. This test requires that the DUT be placed in test mode 2. What is Measured: The oscilloscope captures a 1 ms acquisition at 10 GS/s relative to an unjittered reference resulting in 10 Mpts. By sampling in this manner, very low frequency components are filtered out.
QPHY-BroadR-Reach Software Option Figure 14 – Transmitter Jitter (Master) and Transmit Clock Frequency Shown on this screen: • F1 is the input differential signal which the measurements will be performed on • F2 is a TIE-track of input signal. In the measurement section: • P1 is a RMS of the jitter track. • P2 is the rise time (10%-90%) of input signal and P3 is the fall time (10%-90%) of input signal. • P4 is the bitrate (half the symbol rate) of input signal.
Test 3- Transmitter Jitter (Slave) and Transmit Clock Frequency This test measures slave jitter, TX_TCLK, as specified in Section 5.4.3 and the transmit clock frequency as specified in Section 5.4.5. This test requires that the Slave is receiving valid signals from a compliant PHY operating as the Master and is configured as shown below. This test requires the DUT to be placed in test mode 3.
QPHY-BroadR-Reach Software Option Figure 17 – Transmitter Jitter (Slave) and Transmit Clock Frequency Shown on this screen: • F1 is the input differential signal which the measurements will be performed on • F2 is a TIE-track of input signal. In the measurement section: • P1 is a RMS of the jitter track. • P2 is the rise time (10%-90%) of input signal and P3 is the fall time (10%-90%) of input signal. • P4 is the bitrate (half the symbol rate) of input signal.
Test 4 - Transmitter Distortion Test This test measures the peak distortion of the transmitter and checks to see if it is within the specified limits described in Section 5.4.2. The DUT is required to be placed in test mode 4 for this test. What is Measured: The oscilloscope captures ten records with one sample per UI, at ten equally spaced starting phases. The acquired waveform is then saved and processed by the MATLAB distortion script provided in the specification.
QPHY-BroadR-Reach Software Option The disturbing sine wave shall be applied with the following characteristics. Figure 20 – Disturbing Sine Wave Characteristics Test Methodology: The oscilloscope is set to acquire a 500 kS at 10 GS/s. The acquired signal has one and a half bits of enhanced resolution (ERES) applied to it in order to limit the bandwidth of the oscilloscope to a value which is suitable for this measurement.
Figure 22 – Transmitter Distortion Shown on this screen: • F2 is the input differential signal which the measurements will be performed on In the measurement section: • P1 is recording the passing number of measured distortion values • P2 is recording the number of measured distortion values • P3 is displaying the last measured distortion value returned from the MATLAB script • P4 is displaying the percentage of measured distortion values which have passed • Q4 compares the percentage of passing values to 1
QPHY-BroadR-Reach Software Option Figure 23 – Transmitter Distortion Test Results If the values are being properly returned from the MATLAB script then you will see the values displayed in the main QualiPHY menu in real time. If the MATLAB script is not properly returning values you will see “NoneV” listed as the distortion test result. In this scenario verify that the Matlab Runtime Component 7.7 is properly installed.
Test 5 - Transmitter Power Spectral Density (PSD) This test calculates the PSD of the transmitter and checks to see if it is outside of the specified mask described in Section 5.4.4. This test will also measure the maximum PSD value for informational purposes. The DUT is required to be placed in test mode 5 for this test. What is Measured: A FFT of the acquired signal is calculated and then averaged using a boxcar filter. The FFT is then tested against the provided mask in Figure 5.5 of Section 5.4.4.
QPHY-BroadR-Reach Software Option Figure 24 – Transmitter Power Spectral Density (PSD) Shown on this screen: • F2 is a Power Spectrum of the input signal with a Boxcar filter applied to it In the measurement section: • P1 is the maximum value of the Power Spectrum • Q1 checks to see if the Power Spectrum is contained by the mask Figure 25 – Transmitter Power Spectral Density (PSD) Test Results Thank you for reading the QPHY-BroadR-Reach Operator’s Manual.
