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Lecroy, which supplies products for semiconductor, computer and military uses, has launched a single-source line-up of test instruments to support the USB 3.0 standard, also known as Superspeed USB.

The USB 3.0 Test Suite is an integrated selection of test instruments that addresses all transmitter, receiver, TDR and protocol tests currently defined in the USB 3.0 specification.

The product range includes: the SDA 813Zi oscilloscope for physical layer transmitter verification, compliance and debug; the Pert3 protocol-enabled receiver and transmitter tolerance tester for receiver testing; the WaveExpert sampling oscilloscope for critical characterisation and TDR measurements; and the USB 3.0 protocol analyser exerciser platform, called the Voyager verification system, to address the protocol layer.

The automated Qualiphy physical layer compliance software and USB 3.0 test fixtures are included for rapid debugging and accuracy as well as full compliance testing.

According to David Graef, Lecroy’s vice-president and chief technology officer, Qualiphy fully integrates transmitter and receiver testing by simultaneously controlling both the SDA 813Zi oscilloscope and the Pert3 to produce a full compliance report with transmitter and receiver results.

Pert3 can manage issues such as the insertion or deletion of SKP symbols without losing lock during automated testing programs and can correctly measure bit error rate (BER).

As the Pert3 combines the functions and features of a signal generator, a BER tester (BERT), a protocol editor and a serial data analysis system, it is able to fully characterise the receiver tolerance envelope through the controlled introduction of various types and levels of signal stress (such as increased jitter) while monitoring signal integrity.

In addition, the Lecroy USB 3.0 Test Suite includes the pre-eminent solution for USB 3.0 compliance verification: the Voyager protocol analyser exerciser system.

This full-function analyser is capable of recording and analysing traffic between both USB 2.0 or USB 3.0 devices.

The integrated exerciser can emulate USB 3.0 device behaviours to allow functional, reliability and performance testing.

Jim Kuo, senior digital design manager at JMicron, said: ‘USB 3.0 introduces low-latency flow control and aggressive power management policies that will require thorough testing as part of the USB 3.0 compliance programme.

‘Lecroy’s Voyager verification system provides visibility to the logical Superspeed packets.

‘The Exerciser option gives us precise link layer control, allowing us to test marginal timing conditions that simply can’t be done using a real USB 3.0 host controller,’ he added.

The SDA 813Zi with Qualiphy USB 3.0 automated compliance test software is suitable for the physical-level compliance testing and debugging of USB 3.0 transmitters.

Developers can debug their signal after Continuous Time Linear Equalization (CTLE) and channel emulation by creating the eye diagram and measuring jitter after the reference channel and equalisation as required by the Superspeed USB compliance specification.

The TDR analysis feature of the Lecroy WaveExpert 100H sampling oscilloscope measures Tx and Rx common mode, as well as differential mode impedance as required by the USB 3.0 specification.

The measurements are integrated into the user interface along with a measurement wizard that guides the user through the setup and calibration process.

Test bundles include all necessary software, fixtures and cables and are available for each of the component tests – transmitter, receiver, transmitter and receiver, TDR and protocol – as well as the all-inclusive USB 3.0 Test Suite.

USB developers can save money purchasing the bundles rather than the individual test instruments.

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