Tektronix USB4™ Transmitter, Compliance, and Debug Solution
Opt. USB4 Application Datasheet
Overview
The Tektronix USB4™ Compliance and Debug solutions provide an easy way to validate and characterize the emerging USB4™ Router-Host, USB4™ Router-Device, and USB4™ Hubs as per the USB4™ Electrical Compliance Test Specification v1.0. Tektronix DPO/MSO70000SX/DX Series Oscilloscopes (bandwidth ≥ 23 GHz) support the Tektronix USB4 Compliance and Debug solutions.
Key Features of Tektronix USB4 Transmitter Compliance Solution
- Tektronix USB4 Compliance and Debug solution provides a comprehensive toolset for the USB4™ Gen2 (10 Gbps) and Gen3 (20 Gbps) verification, characterization, debug, and compliance testing.
- Tektronix USB4 solution² is compliant with the USB4™ Specification Ver1.0 and USB4™ Router Assembly Electrical Compliance Test Specification Rev 1.0.
- Tektronix DPOJET-USB4 Plug-in solution with setup files and MOI assists the root cause analysis.
- Tektronix USB4 solution supports the SigTest (USB-IF Analysis Tool).
- Tektronix USB4 solution supports the Wilder Technologies USB4 Controller and USB4 Electrical Test Tool (ETT).
- Tektronix Serial Data Link Analysis (SDLA) tool supports the De-embedding, Embedding, Equalization (CTLE+DFE), and Custom Channel Characterization.
TekExpress USB4 Features
- The TekExpress USB4 Signal Validation feature validates the compliance pattern to ensure the accuracy of the results.
- The TekExpress USB4 Pre-Recorded Mode supports the offline analysis and baseline for future specification changes.
- The TekExpress USB4 Automatic DUT Control mode captures all the compliance test patterns, enabling USB4 Transmitter testing to complete without user intervention.
- Tektronix USB4 Automatic DUT Control supports both USB4 Discrete and Integrated (SoC) products.
- Enables testing of both Lane 0 and Lane 1 Transmitter without flipping the USB Type-C® connector or USB4 High-Speed fixture.
- Provides comprehensive reporting that details test margins, pass/fail results, and plots in PDF, MHT, and CSV formats for quick validation.
Tektronix USB4 Debug Solution
Applications
- USB transmitter testing
- USB4 Silicon Testing: Host, Device, and Hub
- USB4 Peripheral Testing: Host, Device, and Hub
- Manufacturing testing
Visual Representations and Data
Tektronix USB4 Compliance and Debug Solutions Interface
Screenshot of the TekExpress USB4 software interface.
The interface displays setup options including DUT ID, DUT Type (Device), Data Rates (Gen2, Gen3), Lane Selection (Both), CTS Version (1.0), Test Mode (Compliance), Test Method (SigTest), and SigTest Version (0.5). Options for acquiring live waveforms or using pre-recorded waveform files are available.
TekExpress USB4 Debug Solution Interface
Screenshot of the TekExpress USB4 debug solution results.
This interface shows an "Overall Result: Pass" with detailed measurements for USB4 UJ, USB4 UDJ, USB4 DDJ, USB4 LFUDJ, USB4 RJ, USB4 TJ@BER, USB4 DCD, USB4 DJ Dirac, and USB4 NPJ Dirac. It lists Pass/Fail status, Mean, Max, Min, and p-p values for each parameter, along with Bit Rate (19.945Gb/s) and Pattern Length (32767UI).
USB4 Transmitter TP2 and TP3 Connection Diagram
Diagram illustrating the connection setup for USB4 transmitter testing.
The diagram shows a DPO70K SX/DX Oscilloscope connected via a matched pair cable to a USB Type C connector, which interfaces with the DUT (Device Under Test). The setup includes a microcontroller and a HS TX Test Plug.
Tektronix USB4 Transmitter Connection Diagram
Detailed view of USB4 transmitter signal paths.
This diagram illustrates the differential signal paths for USB4 transmitters, showing TxO_N, TxO_P for Lane 0 and Tx1_N, Tx1_P for Lane 1, connecting to the DUT.
USB4 Gen3 (20 Gbps) TP2 Eye Diagram
Eye diagram for USB4 Gen3 (20 Gbps) at Test Point 2.
The diagram is a plot of voltage versus time, displaying multiple superimposed signal traces. It includes a mask (USB4_Gen3_TP2Tx_Eye.msk) to evaluate signal integrity. The plot shows signal characteristics like jitter and noise.
USB4 Gen3 (20 Gbps) TP3 Eye Diagram with Equalization (CTLE and DFE)
Eye diagram for USB4 Gen3 (20 Gbps) at Test Point 3, with equalization applied.
Similar to the TP2 eye diagram, this plot visualizes signal integrity for USB4 Gen3 at 20 Gbps, incorporating Channel Equalization (CTLE+DFE) to compensate for signal degradation.
USB4 Gen3 (20Gbps) TP2 TJ Bathtub
Bathtub curve for Total Jitter (TJ) at Test Point 2 for USB4 Gen3 (20 Gbps).
This plot shows the probability of a certain jitter value occurring against the Unit Interval (UI). The "Target" line indicates the desired performance level, illustrating the jitter distribution and compliance margin.
USB4 Gen3 (20Gbps) TP3 TJ Bathtub
Bathtub curve for Total Jitter (TJ) at Test Point 3 for USB4 Gen3 (20 Gbps).
This plot, similar to the TP2 bathtub curve, illustrates the Total Jitter distribution at Test Point 3 for USB4 Gen3 (20 Gbps) signals, indicating compliance with jitter specifications.
Specifications
High-Speed Electrical Tests Supported in Tektronix USB4 Solution
| Test | Speed | Pattern | Test Point | |
|---|---|---|---|---|
| Gen2 (10 Gbps) | Gen3 (20 Gbps) | TP2 | TP3 | |
| Transmitter Preset Calibration | ✔️ | ✔️ | ✔️ | |
| Transmitter Equalization | ✔️ | ✔️ | ✔️ | |
| Minimum Unit Interval | ✔️ | ✔️ | ✔️ | |
| SSC Down Spread Range | ✔️ | ✔️ | ✔️ | |
| SSC Down Spread Rate | ✔️ | ✔️ | ✔️ | |
| SSC Phase Deviation | ✔️ | ✔️ | ✔️ | |
| SSC Slew Rate | ✔️ | ✔️ | ✔️ | |
| Rise/Fall Time | ✔️ | ✔️ | PRBS15 | |
| Total Jitter (TJ) | ✔️ | ✔️ | ✔️ | ✔️ |
| Uncorrelated Jitter (UJ) | ✔️ | ✔️ | ✔️ | |
| Uncorrelated Deterministic Jitter (UDJ) | ✔️ | ✔️ | ✔️ | |
| Data Dependent Jitter (DDJ) | ✔️ | ✔️ | ✔️ | ✔️ |
| Low-Frequency UDJ (LF UDJ) | ✔️ | ✔️ | ✔️ | |
| DCD (Even-Odd Jitter) | ✔️ | ✔️ | ✔️ | |
| Eye Diagram | ✔️ | ✔️ | ✔️ | ✔️ |
| AC Common Mode | ✔️ | ✔️ | PRBS31 | |
| Electrical Idle Voltage | ✔️ | ✔️ | Idle |
Patterns used: SQ128, PRBS15, PRBS31, Idle.
Ordering Information
TekExpress USB 4 Transmitter Compliance and Debug Solution
| Item | Description |
|---|---|
| DPO/MSO70000SX/DX 3 | Tektronix DPO (Digital Phosphor Oscilloscope) or MSO (Mixed Signal Oscilloscope) Oscilloscopes – 23 GHz and above with DPOJET (DJA) and SDLA64 installed. |
| DPO/MSO70000SX/DX Opt. USB4 4 | TekExpress USB4 Tx Compliance and DPOJET: USB4 Tx/Rx Measurement Plugin Solution (Requires Opt. CIO, DJA, SDLA64). |
| DPO-UP USB44 | TekExpress USB4 Tx Compliance and DPOJET: USB4 Tx/Rx Measurement Plugin Solution (Requires Opt. CIO, DJA, SDLA). |
| DPOFL-USB44 | TekExpress USB4 Tx Compliance and DPOJET: USB4 Tx/Rx Measurement Plugin Solution (Requires Opt. CIO, DJA, SDLA64); Floating. |
| DPOFT-USB44 | TekExpress USB4 Tx Compliance and DPOJET: USB4 Tx/Rx Measurement Plugin Solution (Requires Opt. CIO, DJA, SDLA64); Floating Trial. |
Recommended USB4 Controller, High-Speed Test Fixture, and Accessories
| Item | Vendor | Quantity |
|---|---|---|
| USB4 Controller and High-Speed Test Fixtures: USB4-TPA-UC-K | Wilder Technologies | 1 |
| SMP(F) to 2.92mm(F) Adapter: SM8852 | Fairview Microwave | Min 4 |
| [Optional] SMP Terminators: ST2643 | Fairview Microwave | 4 |
| PMCABLE1M Phase Matched SMA cable set | Tektronix | 2 |
Oscilloscope and Software Prerequisite Requirements
| Requirement | Details |
|---|---|
| Operating System | DPO/MSO70000SX/DX with Microsoft Windows 10 OS |
| DUT Control Tool | The USB4 Electrical Test Tool (ETT) v 0.9.9 (or above) should be available on the oscilloscope. The USB4 ETT is available on the USB-IF Test Tools site www.usb.org/document-library/usb4ett. |
| Controller Driver and Software | Wilder Technologies USB4 Controller Driver and Software should be available on the oscilloscope. Contact Wilder Technologies for software support. |
| Matlab Runtime | Install the Matlab Runtime v R2019b(9.7) on the oscilloscope to run the USB4 SigTest tool. You can download the installable from www.mathworks.com/products/compiler/matlab-runtime.html. |
| SigTest Tool | Copy the SigTest executable on the oscilloscope. You can download the installable from www.usb.org/document-library/usb4-sigtest. |
³ Required items: Opt DJA and Opt SDLA64. Optional items: Opt 10XL and DPO7AFP.
⁴ Requires Opt. CIO, DJA, and SDLA64, and ≥ 23 GHz oscilloscope.
Contact Information
For regional support and inquiries, please refer to the following contact details:
| Region / Country | Contact Information |
|---|---|
| ASEAN / Australasia | (65) 6356 3900 |
| Belgium | 00800 2255 4835* |
| Central East Europe and the Baltics | +41 52 675 3777 |
| Finland | +41 52 675 3777 |
| Hong Kong | 400 820 5835 |
| Japan | 81 (120) 441 046 |
| Middle East, Asia, and North Africa | +41 52 675 3777 |
| People's Republic of China | 400 820 5835 |
| Republic of Korea | +822 6917 5084, 822 6917 5080 |
| Spain | 00800 2255 4835* |
| Taiwan | 886 (2) 2656 6688 |
| Austria | 00800 2255 4835* |
| Brazil | +55 (11) 3759 7627 |
| Central Europe & Greece | +41 52 675 3777 |
| France | 00800 2255 4835* |
| India | 000 800 650 1835 |
| Luxembourg | +41 52 675 3777 |
| The Netherlands | 00800 2255 4835* |
| Poland | +41 52 675 3777 |
| Russia & CIS | +7 (495) 6647564 |
| Sweden | 00800 2255 4835* |
| United Kingdom & Ireland | 00800 2255 4835* |
| Balkans, Israel, South Africa and other ISE Countries | +41 52 675 3777 |
| Canada | 1 800 833 9200 |
| Denmark | +45 80 88 1401 |
| Germany | 00800 2255 4835* |
| Italy | 00800 2255 4835* |
| Mexico, Central/South America & Caribbean | 52 (55) 56 04 50 90 |
| Norway | 800 16098 |
| Portugal | 80 08 12370 |
| South Africa | +41 52 675 3777 |
| Switzerland | 00800 2255 4835* |
| USA | 1 800 833 9200 |
* European toll-free number. If not accessible, call: +41 52 675 3777
