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MULTILANE ML4025-TDR User's Operation Manual

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ML4025-TDR
|OperationUser Manual
ML4025-TDR User Operation Manual
www.multilaneinc.com
Connection
Installation
Calibration
Measurement
Troubleshooting
User Manual Revision 1.0
Windows GUI Version v.1.0.r6380
API Version 1.0
Firmware Version 3.2
Copyright © MultiLane SAL. All rights reserved. Licensed software products are owned by
MultiLane SAL or its suppliers and are protected by United States copyright laws and
international treaty provisions.
Use, duplication, or disclosure by the Government is subject to restrictions as set forth in
subparagraph (c)(1)(ii) of the Rights in Technical Data and Computer Software clause at
DFARS 252.227-7013, or subparagraphs (c)(1) and (2) of the Commercial Computer
Software -- Restricted Rights clause at FAR 52.227-19, as applicable.
MultiLane SAL products are covered by U.S. and foreign patents, issued and pending.
Information in this publication supersedes that in all previously published material.
Specifications and price change privileges reserved.
MultiLane, S.A.L., Houmal Technology Park, Houmal, Mount Lebanon.
ML4025-TDR software, hardware and documentations are registered trademarks of
MultiLane, S.A.L.
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Summary of Contents for MULTILANE ML4025-TDR

  • Page 1 Firmware Version 3.2 Copyright © MultiLane SAL. All rights reserved. Licensed software products are owned by MultiLane SAL or its suppliers and are protected by United States copyright laws and international treaty provisions. Use, duplication, or disclosure by the Government is subject to restrictions as set forth in subparagraph (c)(1)(ii) of the Rights in Technical Data and Computer Software clause at DFARS 252.227-7013, or subparagraphs (c)(1) and (2) of the Commercial Computer...

  • Page 2: Table Of Contents

    ML4025-TDR |OperationUser Manual GENERAL SAFETY PRECAUTIONS ......................1 PREFACE ............................2 CONTACT MULTILANE SAL ........................3 PRODUCT DESCRIPTION ........................4 ........................4 ODEL AND ACKAGE ONTENT ..............................4 VERVIEW ..............................5 EATURES ............................5 ARGET PPLICATIONS PRODUCT SOFTWARE ......................... 6 PC R ...........................
  • Page 3 Figure 1: ML4025-TDR GUI ....................6 Figure 2: ML4025-TDR cPCI Front Panel ................7 Figure 3: ML4025-TDR connected to PC via Ethernet ............8 Figure 4: ML4025-TDR connected to PC Wirelessly ............8 Figure 5: ML4025-TDR with USB connection ..............9 Figure 6: Connect Via Ethernet ..................
  • Page 4 Figure 36: Save Measurements ..................28 Figure 37: Connection Setup ..................... 29 Figure 38: Clock Synchronization Mode ................29 Figure 39: Eye Diagram on ML4025-TDR ................30 Figure 40: Configure DSO ....................30 Figure 41: Graph Selection ....................30 Figure 42: Pattern Graph ....................31 Figure 43: Scope Settings ....................

  • Page 5: General Safety Precautions

    ML4025-TDR |OperationUser Manual General Safety Precautions Review the following safety precautions to avoid injury and prevent damage to this product or any products connected to it. To avoid potential hazards, use this product only as specified. Only qualified personnel should perform service procedures.

  • Page 6: Preface

    ML4025-TDR |OperationUser Manual Preface This is the user operation manual for the ML4025-TDR. It covers the following information: ▪ Describes the capabilities of the instrument: How to install it and its software. ▪ Explains how to operate the instrument as a time domain reflectometer, time...

  • Page 7: Contact Multilane Sal

    PRD, HW/FW/SW design implementation and characterization). Address MultiLane SAL Houmal Technology Park Askarieh Main Road Houmal Website www.multilaneinc.com Sales support sales@multilaneinc.com Support support@multilaneinc.com If any further help is needed, please contact MultiLane SAL, by sending general enquiries to info@multilaneinc.com. 3|P a g e...

  • Page 8: Product Description

    4X35 GHz true-differential channels. It is designed for characterization as well as manufacturing. MultiLane offers the ML4025-TDR instrument in a cPCI card format that fits into the ML4000 MultiLane Signal Integrity Analyzer 6U cPCI Chassis. 4|P a g e...

  • Page 9: Key Features

    ML4025-TDR |OperationUser Manual Key Features • High Resolution TDR/TDT measurements • Determination of the magnitude and polarity of any back reflected signal • 4 ports per module expandable up to 32 and more • Low power dissipation • Sample aperture jitter below 60 fs •...

  • Page 10: Product Software

    The instrument includes the following software: ▪ ML4025-TDR GUI. ▪ MultiLane ML4025-TDR USB driver. ▪ ML4025-TDR ETH Configuration Software. Instrument GUI runs on Windows XP (32/64 bit), Windows 7,8 and 10. NOTE. These applications require the Microsoft .NET Framework 3.5.

  • Page 11: Instrument Ports

    |OperationUser Manual Instrument Ports The ML4025-TDR has 4 differential ports. Each of the ports can either be configured as a TDR port to measure reflections, as a pattern generator only, or as a sampling scope (receiver) only. Transmission measurements require one differential port to act as pattern generator while another will be the receiver.

  • Page 12: How To Connect This Instrument

    ML4025-TDR |OperationUser Manual How to connect this instrument This session covers the connection options of the instrument, addressing the following topic: ML4025-TDR Fast Ethernet / USB Connections method. ▪ NOTE. This release supports Ethernet connection for the software applications (note that the IP should be in the same range of the network).

  • Page 13: Connecting Through Usb Cables

    ML4025-TDR |OperationUser Manual Connecting Through USB cables Connect a USB Mini-B type cable between the instrument and the PC. Figure 5: ML4025-TDR with USB connection 9|P a g e...

  • Page 14: Installation

    • After installation, run the software. • A new window that says: “Connect to your instrument” will appear; this is the main software interface which allows you to connect to the ML4025-TDR. Connect to the Instrument via Ethernet: • Connect the PC to the front panel via the RJ-45 connector located on the front panel through an Ethernet cable to be able to control it.

  • Page 15: Figure 7: Ethernet Configuration

    Figure 7: Ethernet Configuration The instrument is now powered up and connected through the right IP address. Next, the TDR/TDT measurements that can be performed by the ML4025-TDR along with the needed calibrations will be addressed. 11|P a g e...

  • Page 16: Measurements

    |OperationUser Manual Measurements: The ML4025-TDR can be used to test any component and has a wizard that facilitates testing of backplanes and DACs with its ability to measure the impedance profile, the return loss, insertion loss, near-end crosstalk, far-end crosstalk and integrated crosstalk noise.

  • Page 17: Calibration For Dac Testing

    • After completing the calibration, keep the DAC connected and connect its other side to a second MCB. • Connect one ML4025-TDR channel to the first MCB’s TX channel. • Terminate the respective RX channel on the second MCB with a 50Ω load or connect it to another ML4025-TDR channel.

  • Page 18: Figure 10: Setup For Dac Measurement

    ML4025-TDR |OperationUser Manual Figure 10: Setup for DAC Measurement • Measurements can either be differential or single ended. For single ended measurement, “Single_Ended” mode should be selected in the “Advanced Options” tab and only one port is used for each channel while the second is terminated with a 50Ω...

  • Page 19: Insertion Loss

    |OperationUser Manual Insertion Loss: To measure a DUT’s insertion loss, some of the ML4025-TDR’s ports are used as time domain transmitters and others as sampling scopes. A line rate of 25Gbps is used with PRBS11 and the transmitted signal is measured by another channel configured as a scope to measure the DUT’s insertion loss.

  • Page 20: Insertion Loss Measurement

    Figure 13: Insertion Loss Measurement DAC Testing • After completing the calibration, disconnect the reference circuit and connect the cables coming out of the ML4025-TDR’s transmitting channel to an MCB’s TX channel. • Connect the ML4025-TDR’s receiving channel to a second MCB’s RX channel.

  • Page 21: De-Embedding

    ML4025-TDR |OperationUser Manual • Click “Confirm” to measure the DAC’s insertion loss. • Press “Play” for measuring continuously or “Play Once” for a single capture. Figure 14: S21 Measurement for DAC De-embedding Effects from unwanted components can be removed from the measurements by using the software’s de-embedding feature.

  • Page 22: Return Loss

    50Ω load terminations. Calibration is done before the DUT’s connection point. For backplane testing, the terminations are connected at the end of the cables coming out of the ML4025-TDR ports. Figure 16: Termination for Calibration •...

  • Page 23: Return Loss Measurement

    ML4025-TDR |OperationUser Manual Figure 19: TDR Calibration Steps Return Loss Measurement • After completing the calibration, remove the terminations and connect the cables to one end of the DUT, while terminating the other end with a 50Ω load. • Measurements can either be differential or single ended. For single ended measurement, “Single_Ended”...

  • Page 24: Figure 21: Gating For S11 Measurement

    Figure 21: Gating for S11 Measurement • Connect the first setup as instructed by the software and press “Next Setup”. • Connect an ML4025-TDR channel to the first MCB’s TX channel. • Terminate the second MCB’s RX channel with 50Ω loads.

  • Page 25: Near-End Crosstalk

    Figure 25: S11 Measurement for DAC Near-End Crosstalk: To measure Near-End Crosstalk (NEXT), ports 0,1 and 2 of the ML4025-TDR are used as time domain transmitters and the fourth is used as a sampling scope. A line rate of 25Gbps is used with PRBS11 in the same way as for insertion loss measurement.

  • Page 26: Calibration

    NEXT Measurement • After completing the calibration, disconnect the reference circuit and connect the ML4025-TDR’s receiving channel to one of the DUT’s RX ports and terminate its appropriate TX port at the far-end with a 50Ω load. • Connect the ML4025-TDR’s transmitting channel to one of the DUT’s TX ports located at the near-end of the measured channel and terminate its appropriate RX port at the far-end with a 50Ω...

  • Page 27: Far-End Crosstalk

    |OperationUser Manual Far-End Crosstalk: Far-End Crosstalk (FEXT) and NEXT are similar. Ports 0,1 and 2 of the ML4025-TDR are used as time domain transmitters and the fourth is used as a sampling scope. A line rate of 25Gbps is used with PRBS11.

  • Page 28: Integrated Crosstalk Noise

    ML4025-TDR |OperationUser Manual Figure 28: FEXT Measurement Integrated Crosstalk Noise: Integrated Crosstalk Noise (ICN) is a mV value that is obtained by measuring and processing the total near-end and far-end crosstalk on a specific channel. For example, on a DUT with four channels, three FEXT and four NEXT measurements should be performed.

  • Page 29: Correlation With Other Measurements

    ML4025-TDR |OperationUser Manual • Calibrate all channels successively by connecting them one by one to channel 4 using two cable pairs and M-M connectors as explained in the Near-End Crosstalk and Far-End Crosstalk sections. • Connect channel 4 to the RX connector of the channel to be measured.

  • Page 30: Figure 31: Load S2P/S4P Files

    The loss at Nyquist can also be measured by pressing on “Loss at Nyquist” at the bottom right as shown in Correlation with other measurements: The software allows measurements made using the ML4025-TDR to be correlated to ones obtained using 3 party instruments such as a VNA. This can be achieved by loading S2P or S4P files in the GUI and superimposing both plots.

  • Page 31: Figure 32: Load S2P/S4P Files

    ML4025-TDR |OperationUser Manual Figure 35: Load S2P/S4P Files • Markers can be added to compare the amplitude of the different measurements at a specific time. Figure 36: S21 Correlation with VNA 27|P a g e...

  • Page 32: Saving Data

    ML4025-TDR |OperationUser Manual Saving Data: Measurements and calibrations made using the ML4025-TDR can be saved and loaded in the GUI. While performing a calibration, the calibration file can be saved by pressing “Save” before “Done” as shown in Figure 37.

  • Page 33: Sampling Oscilloscope

    Sampling Oscilloscope: The ML4025-TDR can also be used as a scope to measure eye diagrams and patterns from an external PPG. The connection setup can be configured inside the Scope window.

  • Page 34: Figure 39: Eye Diagram On Ml4025-Tdr

    ML4025-TDR |OperationUser Manual Figure 42: Eye Diagram on ML4025-TDR The user can go back to the settings window by pressing the wrench icon on the bottom left of the screen. Figure 43: Configure DSO The user can change views and choose between eye diagram or pattern graph under Graphs Displayed.

  • Page 35: Figure 42: Pattern Graph

    ML4025-TDR |OperationUser Manual Figure 45: Pattern Graph Additional settings such as intrinsic jitter, amplification, wander correction and filters can be manipulated by pressing Scope Settings on the right side of the screen. Figure 46: Scope Settings 31|P a g e...

  • Page 36: Figure 44: Filter Settings

    ML4025-TDR |OperationUser Manual To add filters, choose the filter that is needed, press Add and then proceed to select the advanced options specific to it. Figure 47: Filter Settings Graph display settings can also be modified by pressing on Axis Properties on the left side of the screen.

  • Page 37: Figure 47: Choose Measurements

    ML4025-TDR |OperationUser Manual To add measurements, press the Measurements button on the bottom right, select the ones needed and then press the upward arrow located on the right of the Measurements button to display them. Figure 50: Choose Measurements Figure 51: Eye Diagram with Measurements...

  • Page 38: Usb Driver Installation

    |OperationUser Manual USB Driver Installation During the MultiLane software installation, the USB drivers of a specific instrument should normally be installed automatically. If for some reason this doesn’t happen, or an error window like the one shown in the screenshot below appears, it is recommended to install the USB drivers manually.

  • Page 39: Usb Driver Installation On Windows 8 Platforms

    A Windows message appears (after some time) saying that you have successfully updated your driver software. • Press close. • In the Device Manager, a new tab appears named MultiLane SAL Devices. Expanding it reveals “MultiLane SAL ML4025-TDR USB Device”.

  • Page 40: Usb Driver Installation On Windows 10 Platforms

    ML4025-TDR |OperationUser Manual USB Driver Installation on Windows 10 platforms: This method allows you to stop the driver signature enforcement feature for once. It is not a permanent change. Restart your computer and this feature is back on again. 1) Press Start button, and then click the icon for Restart and Shut down. Now, press and hold Shift key when you choose Restart.
  • Page 41 ML4025-TDR |OperationUser Manual 4) Now choose Startup Settings. 5) Click the Restart button. 6) Press F7 key on your keyboard to go Disable driver signature enforcement. 37|P a g e...

  • Page 42: Firmware Upgrade

    Firmware Upgrade The PIC32 Bootloader program automatically runs when the ML4025-TDR GUI detects incorrect or outdated firmware. The following software is needed to load the firmware: ▪ ML Configuration GUI Instructions to upgrade the Firmware 1.

  • Page 43: Figure 53: Connect Bootloader Software

    ML4025-TDR |OperationUser Manual Figure 56: Connect Bootloader Software 5. Press “Load Hex File” then load the new ML4025-TDR firmware and press “Open”. 6. Press “Erase-Program-Verify” button. Successful loading will be indicated by the bootloader software as shown in . Figure 57: Erase Program Verify 7.

  • Page 44: Ordering Information

    For more information on this or other products, contact Multilane sales team by email at sales@multilaneinc.com Table 2: Order Information For more information on this or other products contact MultiLane sales team by email sales@multilaneinc.com. Manual Revision History This section describes the changes that were implemented in this document. The changes are listed by revision, starting with the most current publication.

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