Test & Measurement


USB 3.0 test suite

20 January 2010 Test & Measurement

LeCroy has launched a lineup of test instruments to support the USB (Universal Serial Bus) 3.0 standard, also known as SuperSpeed USB. The LeCroy 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 new product line includes the SDA 813Zi oscilloscope for physical layer transmitter verification, compliance and debug; the protocol-enabled receiver and transmitter tolerance tester, PeRT3, for receiver testing; the WaveExpert sampling oscilloscope for critical characterisation and TDR measurements; and a USB 3.0 protocol analyser exerciser platform, the Voyager verification system, addresses the protocol layer. Automated QualiPHY physical layer compliance software and USB 3.0 test fixtures are included for rapid debugging and full compliance testing.

The PeRT3 tool manages issues such as the insertion or deletion of SKP symbols without losing lock during automated testing programs and measures BER (bit error rate). Because the PeRT3 combines the functions and features of a signal generator, bit error rate tester (BERT), protocol editor and serial data analysis system into one instrument, it is able to fully characterise the receiver tolerance envelope through the controlled introduction of various types and levels of signal stress (eg, increased jitter) while monitoring signal integrity.

The SDA 813Zi with QualiPHY USB 3.0 automated compliance test software is designed for physical-level compliance testing and debugging of USB 3.0 transmitters. Developers can debug their signal after continuous time linear equalisation (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.

Finally, the TDR analysis feature of the WaveExpert 100H sampling oscilloscope measures Tx and Rx common mode, and 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 set-up and calibration process.

For more information contact Comtest, +27 (0)11 254 2200, info@comtest.co.za, www.comtest.co.za



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