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ENT-AN0061
Application Note
Transmitter Testing of 10/100/1000BASE-T
June 2018
Transmitter Testing of 10/100/1000BASE-T
VPPD-02009 ENT-AN0061 Application Note Revision 1.1
Contents
1 Revision History ............................................................................................................................. 1
1.1 Revision 1.1 ........................................................................................................................................
1.2 Revision 1.0 ........................................................................................................................................
2 Transmitter Testing of 10/100/1000BASE-T .................................................................................. 2
2.1 Overview .............................................................................................................................................
2.2 Compliance Individual Tests ............................................................................................................... 2
2.2.1 1000BASE-T PMA Output Voltage/Droop/Template Tests ..................................................................... 2
2.2.2 1000BASE-T PMA Transmitter Timing Jitter ............................................................................................ 3
2.2.3 1000BASE-T PMA Transmitter Distortion ................................................................................................ 3
2.2.4 1000BASE-T PMA Common-Mode Output Voltage ................................................................................. 4
2.2.5 100BASE-TX PMD Active Output Interface Template Tests .................................................................... 4
2.2.6 10BASE-T MAU Peak Differential Output Voltage Test ........................................................................... 5
2.2.7 10BASE-T MAU Transmitter Waveform for Start of TP_IDL .................................................................... 5
2.2.8 10BASE-T MAU TD Return Loss ............................................................................................................... 6
2.3 Equipment Needed .............................................................................................................................
2.4 Configuring the Test Equipment ......................................................................................................... 6
2.4.1 Scope, Probe, and Application Calibration .............................................................................................. 7
2.4.2 Verify Probe Calibration .......................................................................................................................... 7
2.4.3 Tips For Proper Testing ............................................................................................................................ 7
2.5 Configuring the DUT for Analog Compliance Tests ............................................................................ 7
2.5.1 10BASE-T Amplitude Testing ................................................................................................................... 7
2.5.2 100BT Amplitude Testing ........................................................................................................................ 7
2.5.3 1000BT Amplitude Testing ...................................................................................................................... 8
2.6 1000BASE-T PMA Testing with Disturbing Signal ............................................................................... 8
2.7 Board/Magnetic Considerations ......................................................................................................... 9
2.8 Conclusion ..........................................................................................................................................
Transmitter Testing of 10/100/1000BASE-T
VPPD-02009 ENT-AN0061 Application Note Revision 1.1 1
1 Revision History
The revision history describes the changes that were implemented in the document. The changes are
listed by revision, starting with the most current publication.
1.1 Revision 1.1
Revision 1.1 of this document was published in June 2018. The following is a summary of the changes:
The document scope was expanded to also cover 10M and 100M, as well as existing 1G compliance
tests.
Existing test suggestions were updated and ones for PMD and MAU were added. For more
information, see .Compliance Individual Tests
Equipment gain and bandwidth recommendations were added. For more information, see
.Equipment Needed
Vendor-specific procedures for calibrating Ethernet compliance software were added. For more
information, see .Scope, Probe, and Application Calibration
Speed-specific instructions for configuring the PHY were added. For more information, see
.Configuring the DUT for Analog Compliance Tests
PMA disturbing signal information was added. For more information, see 1000BASE-T PMA Testing
.with Disturbing Signal
The board/magnetic considerations were updated. For more information, see Board/Magnetic
.Considerations
1.2 Revision 1.0
Revision 1.0 was published in November 2007. It was the first publication of this document.

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