Automotive Ethernet Compliance Test SolutionBroadR-Reach® (100BASE-T1)

The Tektronix automotive Ethernet test solution provides automatedcompliance support for BroadR-Reach V3.2 specifications and IEEEP802.3bwTM (100BASE-T1) requirements. The automated compliancesolution includes test software that runs on a Tektronix Oscilloscope whileperforming all physical layer (PHY) transmitter compliance tests.

The compliance software allows for complete or selective testing of any ofthe transmitter electrical specifications including complete Oscilloscopecontrol of the required setups. Software setup flexibility allows for designvalidation, margin analysis and repeatable compliance testing whilereducing instrument setup difficulties. Additionally, the software cangenerate a comprehensive date-stamped test report with pass/fail resultsincluding Oscilloscope display waveforms and data plots.

Full compliance testing requires configuring the PHY device into specialtest modes along with selection of the corresponding compliance test(s).The Tektronix compliance software allows selection of all or any of thespecific tests through a simple setup menu. Software navigation isarranged around a logical workflow for quick setups, changes and review oftest results.

Test setup configurations will vary from connections to the device undertest, probing, test fixtures, calibration and use of the Oscilloscope andsignal generator. To aid the users, the Tektronix software providesreference illustrations that help ensure the correct setup for each test.

Equipment Requirements

Tektronix offers a full range of instruments and accessories with technicalperformance ideally suited for complete transmitter PHY transceiver testingincluding:

MSO/DPO5000B, DPO7000C, or MSO/DPO 70000C/DX Oscilloscope(1 GHz or greater bandwidth required) with Option BRR compliancesoftware

TDP1500 differential probe

AWG5000C or AFG3000C signal generator for Distortion and Return Losstests

TF-GBE-BTP and TF-BRR-CFD test fixtures

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Unique to Tektronix is the ability to perform the required Return Lossmeasurement with an Oscilloscope using a patented technique withoutneeding a more specialize RF instrument. For optimized use, a PC monitorcan be connected or even used with Remote Desktop Connection.

Jitter and Transmit Clock Frequency TestsThe PHY has a symbol clock frequency of 66.667 MHz and is outputtedusing Test Mode 2. Separate tests are run to measure the Master (Slave)RMS jitter and the TX clock frequency.

Droop TestThe PHY is configured using Test Mode 1. The droop measurements areperformed by determining the positive and negative waveform peaksvoltages and measuring the voltage 500ns after the peak value where themagnitude of droop should be less than 45%.

Power Spectral Density (PSD) TestThe Spectral of an input signal (set to Test Mode 5) is computed usingbuilt-in scope MATH functions. Post processing is done on the signal toarrive at the PSD. The computed PSD is then compared with thespecification - lower and upper masks to arrive at the final result.

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Distortion TestConfigured for Test Mode 4 the distortion test measures the maximumallowable transmitter distortion. This test requires the use of a disturbingsine wave signal that is added to the PHY output signal. The peaktransmitter distortion is calculated where measure values are comparedagainst the compliance test specification.

Return Loss TestThe MDI return loss test determines if there is an impedance mismatchfrom the differential impedance specification of 100 Ω that will affectinteroperability. This test can be performed using a VNA, but the Tektronixsolution is capable of performing this test with an Oscilloscope using apatented measurement approach eliminating the need for additional testinstruments.

Pass/Fail reportCompliance documentation is quick and easy with a summary report inMHTML or PDF format. The report provides Pass/Fail status and isautomatically generated after tests are completed. The report includes testconfiguration details, waveform plots, Oscilloscope displays, and marginanalysis to provide more insights into your design.

Test fixturesAccurate and repeatable compliance testing requires access to the PHYtransmitter output, reference clock and must support calibration and use ofdisturbing signals. One recommended approach is to use Tektronix TF-GBE-BTP Ethernet fixture and TF-BRR-CFD clock divider fixture that cansupport all test setups while providing convenient test points for probing.

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Debug Analysis and ComplianceDevelopment of automotive electronics capable of supporting higher datarates like automotive Ethernet along with other communication buses likeCAN, FlexRay and LIN requires an Oscilloscope that offers a full suite ofdebug and analysis capabilities. The Tektronix Windows Oscilloscopesoffer a range of performance models tailored for mixed signal electronicsalong with a comprehensive set of features that include:

Bandwidth ≥ 1 GHz above that meet all technical requirements forautomotive Ethernet

>250,000 wfm/s for maximum waveform capture using FastAcq ®acquisition

Up to 250 Megapoint record length with MultiView zoom™

>11 bits vertical resolution using HiRes sampling

Trigger and decode options for mid-speed (CAN, FlexRay, and LIN)buses

Optional analysis for memory, advanced jitter, serial data, power andWideband RF

Compliance test options for USB2.0, Ethernet, USB power, MOST,BroadR-Reach/100BASE-T1

For even greater insight into your automotive Ethernet design, advancedanalysis tools like DPOJET can quickly allow extended jitter and timinganalysis. In the screen display below DPOJET was able to characterize the66.667 MHz PHY symbol clock including Rj histogram analysis.

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Ordering Information

Software for BroadR-Reach/100BASE-T1 (P802.3bw)Requires Oscilloscope with 1 GHz minimum bandwidth

Option BRR Order with MSO/DPO70000C, DPO7000C, or MSO/DPO5000B Oscilloscopes

DPOFL-BRR (Floating license) Upgrade an existing MSO/DPO70000C, DPO7000C, or MSO/DPO5000B Oscilloscopes

DPO-UP BRR (Upgrade) Upgrade an existing MSO/DPO70000C, DPO7000C, or MSO/DPO5000B Oscilloscopes

BroadR-Reach/100BASE-T1 solutionOscilloscope MSO/DPO5000B, DPO7000C, and MSO/DPO70000C Windows 7 Oscilloscopes (1 GHz or greater bandwidth)

Oscilloscope options Recommended: Opt. BRR (BroadR-Reach/100BASET-1), Opt. DJA (advanced jitter and eye analysis), Opt SR-AUTO (CAN/LIN/FlexRay trigger/decode), Opt SR-EMBD (I2C, SPI trigger/decode).

Probing Recommended (2 required):TDP1500 (70000 series Oscilloscope require TCA-VPI50 adapter)

Supported: P6247 or P6248 (70000 series Oscilloscope requires TCA-BNC adapters, 7000 and 5000 seriesOscilloscope requireTPA-BNC adapters)

Signal source Recommended: AFG3252C

Supported:AWG5000C, AWG7000C

Fixtures TF-GBE-BTP Ethernet adapter and TF-BRR-CFD Clock frequency divider

Recommended extras External PC monitor and USB keyboard

2 pair SMA cables or coaxial cables for use with AFG or AWG

2 coaxial cables for use with clock divider outputs and 1 SMA cable for clock divider input

1 coaxial cable for AFG or AWG for marker output

Tektronix is registered to ISO 9001 and ISO 14001 by SRI Quality System Registrar.

Product(s) complies with IEEE Standard 488.1-1987, RS-232-C, and with Tektronix Standard Codes and Formats.

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Datasheet

ASEAN / Australasia (65) 6356 3900 Austria 00800 2255 4835* Balkans, Israel, South Africa and other ISE Countries +41 52 675 3777 Belgium 00800 2255 4835* Brazil +55 (11) 3759 7627 Canada 1 800 833 9200 Central East Europe and the Baltics +41 52 675 3777 Central Europe & Greece +41 52 675 3777 Denmark +45 80 88 1401 Finland +41 52 675 3777 France 00800 2255 4835* Germany 00800 2255 4835*Hong Kong 400 820 5835 India 000 800 650 1835 Italy 00800 2255 4835*Japan 81 (3) 6714 3010 Luxembourg +41 52 675 3777 Mexico, Central/South America & Caribbean 52 (55) 56 04 50 90 Middle East, Asia, and North Africa +41 52 675 3777 The Netherlands 00800 2255 4835* Norway 800 16098 People's Republic of China 400 820 5835 Poland +41 52 675 3777 Portugal 80 08 12370 Republic of Korea +822 6917 5084, 822 6917 5080 Russia & CIS +7 (495) 6647564 South Africa +41 52 675 3777 Spain 00800 2255 4835* Sweden 00800 2255 4835* Switzerland 00800 2255 4835*Taiwan 886 (2) 2656 6688 United Kingdom & Ireland 00800 2255 4835* USA 1 800 833 9200

* European toll-free number. If not accessible, call: +41 52 675 3777

For Further Information. Tektronix maintains a comprehensive, constantly expanding collection of application notes, technical briefs and other resources to help engineers working on the cutting edge of technology. Please visit www.tek.com.

Copyright © Tektronix, Inc. All rights reserved. Tektronix products are covered by U.S. and foreign patents, issued and pending. Information in this publication supersedes that in all previously published material. Specification andprice change privileges reserved. TEKTRONIX and TEK are registered trademarks of Tektronix, Inc. All other trade names referenced are the service marks, trademarks, or registered trademarks of their respective companies.

25 Apr 2016 61W-29564-1

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