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QPHY-USB

The USB package provides a complete acquisition and analysis system for USB 2.0 devices, hosts, and hubs, as specified in the USB-IF USB 2.0 Electrical Test Specification. The test software implements a full set of electrical tests for USB 2.0, including High-, Full-, and Low-speed tests and is supported by Teledyne LeCroy’s QualiPHY automated test and reporting software.

Explore QPHY-USB Explore QPHY-USB
Key Features
  • Compliant with all real-time oscilloscope tests specified by the USB-IF procedures
  • Support for host, device, and hub testing
  • Simple and easy-to-use automated testing
  • SMA cables used for high-speed upstream signal quality
  • Supports 12 Loads for new higher port hubs
  • 2 boards for ease of connection
  • No dangling cables
  • Support for High-speed, Full-speed, and Low-speed testing included
  • QualiPHY report generation— incorporates all oscilloscope and DVM tests

The USB package provides a complete acquisition and analysis system for USB 2.0 devices, hosts, and hubs, as specified in the USB-IF USB 2.0 Electrical Test Specification. The test software implements a full set of electrical tests for USB 2.0, including High-, Full-, and Low-speed tests and is supported by Teledyne LeCroy’s QualiPHY automated test and reporting software.

QualiPHY’s connection diagrams provide a visual representation of probe and cable connections making it easy to ensure that the correct connections are made the first time.

The user is prompted when to change the test conditions and as how to interpret the test results. Each measurement is indicated by its designation within the specification, and the allowed values for each parameter are shown, as well as a pass/fail indication.

Teledyne LeCroy’s TF-USB-B fixture provides sections for Signal Quality (Device & Host), Receiver Sensitivity, TDR (Device & Host), Disconnect, Inrush, Droop and 12 Loads to accommodate new higher port hubs. High-speed, Full-speed, and Low-speed tests are all supported.

QPHY-USB is supported by 2 GHz or higher bandwidth oscilloscopes: WaveRunner®, WavePro®, WaveMaster®, SDA, or DDA.

Compliance Testing for High-, Full-, and Low-speed Devices, Hosts, and Hubs

High-speed upstream signal quality test result.

Eye diagram created using the integrated USB-IF MATLAB® test scripts.

In addition to QualiPHY, the QPHY-USB option also has easy to use step-by-step instructions embedded in the menu system of the application. These simple, step-bystep, instructions lead the user through the selected test. The user is directed as to the proper connection of probes as well as how to properly use the USB-IF High-speed Electrical Tool. Results, indicating pass or fail, are displayed on the screen. This enables the solution to help with both compliance testing and debug. All Highspeed, Full-speed and Low-speed compliance tests are supported in debug mode for Devices, Hosts and Hubs.

High-speed chirp timing test.

High-speed packet parameter test.

QualiPHY USB

QualiPHY has many preset compliance configurations but also enables users to create their own test and limit sets.

Connection diagram for high-speed signal quality.

QualiPHY has many predefined configurations that allow users to run complete compliance test. (All High-speed Device Tests, All Full-speed Hub Tests, etc.) In addition, users can create their own custom test groups and limit sets. When the tests are complete, QualiPHY will generate a full test report in PDF, HTML, or XML formats (including eye diagrams and other screenshots).

Host Tests
  • HS signal quality
  • HS packet parameters
  • HS chirp timing
  • HS suspend/resume/reset
  • HS disconnect
  • FS downstream signal quality
  • LS downstream signal quality
Device Tests
  • HS signal quality
    • HS far-end for tethered devices
    • HS near-end for untethered devices
  • HS packet parameters
  • HS chirp timing
  • HS suspend/resume/reset
  • HS receiver sensitivity
  • FS upstream signal quality
  • LS upstream signal quality
  • Inrush current
Hub Tests
  • HS signal quality (upstream/downstream)
    • HS far-end for tethered hubs
    • HS near-end for untethered hubs
  • HS packet parameters
  • HS chirp timing
  • HS suspend/resume/reset
  • HS receiver sensitivity
  • HS downstream repeater
  • HS upstream repeater
  • FS signal quality (upstream/downstream)
  • LS signal quality (upstream/downstream)
  • Inrush current

TF-USB-B: Signal integrity board and load board are separate to ease connections.

TF-USB-B

TF-USB-B is required to test High-, Full-, and Low-speed Devices, Hosts, and Hubs. The accessories include two matched SMA cables, two SMA-BNC adapters, two SMA terminators, USB-A Male to Mini-B Male adapter, USB-A Female to B Female adapter, USB-A Male to Micro AB Female adapter, and ten 6" USB-A to USB-B cables. TF-USB-B contains 12 Loads for new higher port hubs. These Loads are on a separate board to allow for easy connections.