Features & Benefits
USB USB 2.0 Compliance Testing
- Automated Compliance Testing for USB 2.0 Verification
- Designed for use with MSO/DPO5000, DPO7000, and DPO/DSA/MSO70000 Series Oscilloscopes
SR-USB USB 2.0 Triggering and Analysis
- Automated Trigger and Decode for USB 2.0
- Designed for use with the MSO/DPO5000, DPO7000C, DPO/DSA/MSO70000C, and DPO/DSA70000D Series Oscilloscopes
DPO4USB USB 2.0 Triggering and Analysis
- Automated Trigger, Decode, and Search for USB 2.0
- Designed for use with the MDO4000, MSO/DPO4000, and MSO/DPO4000B Series Oscilloscopes
Applications
- Low-speed USB 2.0
- Full-speed USB 2.0
- High-speed USB 2.0
Tektronix provides comprehensive, integrated tool sets to serve the needs of engineers designing USB-based embedded systems as well as those validating the physical-layer compliance of USB 2.0 serial devices to the USB 2.0 standards.
The Tektronix USB 2.0 compliance test application (Opt. USB) and selected Tektronix oscilloscopes provide one-button compliance testing for USB 2.0 devices as specified by the USB-IF. The USB software automates the compliance testing and allows engineers to perform the required tests efficiently and reliably right on their bench.
The Tektronix MDO4000, MSO/DPO4000, and MSO/DPO4000B Series oscilloscopes with the DPO4USB Serial Application Module and MSO/DPO5000, DPO7000C, DPO/DSA/MSO70000C, and DPO/DSA70000D Series oscilloscopes with the SR-USB application simplify analysis of USB 2.0 waveforms when validating and debugging USB-based embedded systems. DPO4USB offers automated trigger, decode, and search for low-speed, full-speed, and high-speed USB buses, enabling fast and efficient validation and debug.
USB – Automated USB 2.0 Physical Layer Compliance Testing
USB compliance testing has some unique measurement challenges:
- Designers must quickly and accurately perform all compliance tests recommended by the USB Implementers Forum, Inc. (USB-IF) before they can use the “certified” USB-IF logo on their packaging
- Characterization of these electrical signals includes mask testing and parametric testing, for low-speed, full-speed, and high-speed hosts, devices, and hubs
- Signal speeds range from 1.5 Mb/s (low-speed) to 480 Mb/s (high-speed)

USB compliance test results.

USB automated USB eye diagram analysis.
The USB application software provides automated compliance testing for USB 2.0 serial bus verification, including:
- Fully compliant with USB-IF tests for USB 2.0 compliance testing
- Automated eye diagram analysis verifies signal quality
- Automated oscilloscope setups for various tests eliminate time-consuming manual setups
- Comprehensive test fixture enables quick setup and signal access for a wide range of tests
- High-speed tests: Signal Quality, Receiver Sensitivity, Chirp, Reset, Resume, Suspend, Packet Parameter, and Monotonicity tests
- Automatic rise and fall time measurements simplify tests
- Automatic deskew for accurate measurements
- Online help fully documents test procedures
- User-configurable report formats for customization
- User-configurable measurement limits for tolerance testing

Measurement Select menu for the Signal Integrity test.
Quick Pass/Fail tests substantiated with results make the USB application the preferred solution for USB 2.0 physical-layer validation. In-depth analysis is possible with the statistical information about the tests performed. The user-defined measurement limits also help to perform tolerance testing on a design.
USB can be downloaded from www.tektronix.com and with the option license you can easily install the software on your oscilloscope. After installation, the application is accessible from the menu bar of the Tektronix Windows oscilloscopes. The user manual and other documents are copied at the application installation location on the oscilloscope's hard drive.
USB 2.0 Compliance Test Fixtures

TDSUSBF USB 2.0 Test Fixture.
A comprehensive compliance test fixture provides a probing solution for the Signal Quality, Inrush Current, Drop and Droop, Receiver Sensitivity, and Impedance Measurement test. The test fixture (TDSUSBF) is ordered separately. The USB-IF logo-tagged 6 in. AB cable is shipped along with the test fixture.
SR-USB – USB 2.0 Triggering and Analysis
Debugging USB-based embedded systems designs provides some complex measurement and analysis challenges:
- Capturing specific USB addresses and data
- Displaying the elements of the USB message in an understandable format, in a variety of formats, for a wide variety of engineers and technicians
- Time-correlating USB messages with analog and digital signals in the embedded system
- Capture long time windows of USB traffic and then find specific events within the acquired data
The optional SR-USB application software, installed in an MSO/DPO5000, DPO7000C, DPO/DSA/MSO70000C, or DPO/DSA70000D Series oscilloscope, provides a robust set of tools for debugging embedded systems with USB 2.0 serial buses, including:
- Automated serial triggering and decode for low-speed, full-speed, and high-speed USB 2.0 signals
- Trigger on all the critical elements of a USB bus such as address, data, etc.
- Decode all the critical elements of each USB message. No more counting 1s and 0s!
- Search through long acquisitions using user-defined criteria to find specific messages
- Event table shows decoded serial bus activity in a tabular, time-stamped format for quick summary of system activity
USB Serial Triggering

Triggering on a specific PID on a USB full-speed bus. A complete set of triggers, including triggers for specific token (address) and data packet content, ensures you quickly capture your event of interest.
Trigger on packet content such as sync, reset, suspend/resume, token (address) packets with specific address and endpoint, specific data content, handshake packets, special packets, and errors.
USB Serial Decode

Color-coded decoded display of low-speed USB bus, showing Sync, PID, CRC, and Stop components of the serial signal.
The SR-USB application provides a higher-level, combined view of the individual signals that make up the USB bus, making it easy to identify where packets begin and end and identify subpacket components such as sync, PID, data, CRC, errors, etc.

High-speed USB decoded display, automatically displaying bus content in any of several digital formats.
Are you wasting time manually decoding the waveform? Tired of having to visually inspect the waveform to count clocks, determine if each bit is a 1 or a 0, combine bits into bytes, and determine the hex value? Let the oscilloscope with the SR-USB application do it for you! Once you've set up a USB bus, the MSO/DPO5000, DPO7000C, DPO/DSA/MSO70000C, or DPO/DSA70000D Series will decode each packet on the bus, and display the value in Hex, Binary, or ASCII in the bus waveform.
USB 2.0 Event Table

USB decoded Event table showing all packet information with time-stamp information.
In addition to seeing decoded packet data on the bus waveform itself, you can view all captured packets in a tabular view much like you would see in a software listing. Packets are time stamped and listed consecutively with columns for each component (Time, PID, Address, Payload, and Errors).
USB 2.0 Search
USB packet content triggering is very useful for isolating the event of interest, but once you’ve captured it and need to analyze the surrounding data, what do you do? In the past, users had to manually scroll through the waveform counting and converting bits and looking for what caused the event. With the SR-USB application installed, you can enable the oscilloscope to automatically search through the acquired data for user-defined criteria including serial packet content. Each occurrence is highlighted by a search mark. Rapid navigation between marks is as simple as pressing the Previous (←) and Next (→) buttons on the oscilloscope front panel.
DPO4USB – USB 2.0 Triggering and Analysis
Debugging USB-based embedded system designs provides some complex measurement and analysis challenges:
- Capturing specific USB addresses and data
- Displaying the elements of the USB message in an understandable format, in a variety of formats, for a wide variety of engineers and technicians
- Time-correlating USB messages with analog and digital signals in the embedded system
- Capture long time windows of USB traffic and then find specific events within the acquired data
The optional DPO4USB application module, installed in an MDO4000, MSO/DPO4000, or MSO/DPO4000B Series oscilloscope, provides a robust set of tools for debugging embedded systems with USB 2.0 serial buses, including:
- Automated serial triggering and decode for low-speed, full-speed, and high-speed USB 2.0 signals
- Trigger on all the critical elements of a USB bus such as address, data, etc.
- Decode all the critical elements of each USB message. No more counting 1s and 0s!
- Search through long acquisitions using user-defined criteria to find specific messages
- Event table shows decoded serial bus activity in a tabular, time-stamped format for quick summary of system activity
USB 2.0 Serial Triggering
Trigger on packet content such as sync, reset, suspend/resume, token (address) packets with specific address and endpoint, specific data content, handshake packets, special packets, and errors.
USB 2.0 Decode

Triggering on a specific PID on an USB FS bus. A complete set of triggers, including triggers for specific Token (address) and data packet content, ensures you quickly capture your event of interest.
The DPO4USB USB Serial Application Module provides a higher-level, combined view of the individual signals that make up the USB bus, making it easy to identify where packets begin and end and identifying subpacket components such as sync, PID, data, CRC, errors, etc.

High-speed USB decoded display, automatically displaying bus content in any of several digital formats.
Are you wasting time manually decoding the waveform? Tired of having to visually inspect the waveform to count clocks, determine if each bit is a 1 or a 0, combine bits into bytes, and determine the hex value? Let the oscilloscope with a DPO4USB application module do it for you! Once you've set up a USB bus, the MDO4000, MSO/DPO4000, or MSO/DPO4000B Series will decode each packet on the bus, and display the value in Hex, Binary, or ASCII in the bus waveform.
USB 2.0 Event Table

USB decoded Event table showing all packet information with time-stamp information.
In addition to seeing decoded packet data on the bus waveform itself, you can view all captured packets in a tabular view much like you would see in a software listing. Packets are time stamped and listed consecutively with columns for each component (Time, PID, Address, Payload, and Errors).
USB 2.0 Search
USB packet content triggering is very useful for isolating the event of interest, but once you've captured it and need to analyze the surrounding data, what do you do? In the past, users had to manually scroll through the waveform counting and converting bits and looking for what caused the event. With a DPO4USB USB Serial Application Module, you can enable the oscilloscope to automatically search through the acquired data for user-defined criteria including serial packet content. Each occurrence is highlighted by a search mark. Rapid navigation between marks is as simple as pressing the Previous (←) and Next (→) buttons on the oscilloscope front panel.