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Testing physical-layer (PHY) USB4 receivers for conformance or compliance requires a USB4 testbed comprised of a BERT, high-bandwidth oscilloscope, receiver test application software, and a USB4 microcontroller test module. The application software automates measurement and test case execution as specified in the USB4 Electrical Compliance Test Specification, as defined by the Universal Serial Bus Implementers Forum (USB-IF).
Precision testbed calibration is required to ensure the device under test passes conformance specification. This requires optimizing the transmitter equalizer and then finely calibrating the bit error ratio tester's (BERT) stress signal using a high-performance oscilloscope. During the receiver test, the BERT injects the stress signals on the lane under test. The test automation software and a USB4 microcontroller test module are used to perform the BER test, which validates whether or not the device under test exceeds the allowance defined by the USB compliance test specification.
How to Test USB4 Receiver Compliance
The UXR0334B is the 33 GHz, 4 channel, Infiniium UXR-Series real-time oscilloscope
Bandwidth | 33 GHz |
Max Memory Depth | 2 Gpts |
Max Sample Rate | 128 GSa/s |
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How to Test USB4 Receiver Compliance
The M8040A high performance BERT covers all flavors of 400 GbE standards testing with support for PAM4 and NRZ signals and data rates up to 64 GBaud
Standards |
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Max Sample Rate | 64.8 GBd |
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Amplitude | 0.9 Vpp @ 58 GBd |
Clock data recovery built-in | Yes w/ adj loop bandwidth (16 MHz max) |
Equalizer |
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FEC |
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Jitter Type |
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Line Coding |
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Link Training |
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How to Test USB4 Receiver Compliance
Maximize the usage of your test instruments with a fast and reliable application to automate system calibration and USB4 receiver compliance tests.
How to Test USB4 Receiver Compliance
Advanced Signal Integrity Software (EQ, InfiniiSimAdv, Crosstalk)
Debug & Analysis Software | |
Connectivity & Usability Software |
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Compliance Test Applications | Ethernet |
Select Oscilloscope Series |
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