Universal Serial Bus (USB) is a serial bus standard...to connect devices to a host computer. USB was designed to allow many peripherals to be connected using a single standardized interface socket and to improve plug and play capabilities by allowing hot swapping; that is, by allowing devices to be connected and disconnected without rebooting the computer or turning off the device.
Agilent Technologies Inc. and Symwave Inc. announced Symwave's use of the Agilent DSA91304A real-time oscilloscope and J-BERT N4903A high-performance serial BERT as part of its comprehensive USB 3.0 device testing and validation.
Symwave is a leading silicon supplier of system solutions for SuperSpeed USB storage devices.Verifying physical layer device (PHY) performance and compliance to the standard is a critical step to ensure a design will interoperate with other USB 3.0 products. Robust PHY performance can help compensate for poor-quality cables or signal impairments, leading to a better user experience with the end-consumer product.
Agilent's USB 3.0 validation solution is the most comprehensive toolset for USB compliance. To support USB 3.0 PHY silicon testing, Agilent has created a comprehensive test solution for both transmitter and receiver testing that allows design and validation teams to verify specification requirements. Agilent USB testing tools are chosen by test labs and compliance workshops worldwide because of their ease of use, automation and accuracy. Agilent's USB 3.0 toolset will continue this tradition.
USB 3.0 receptacles are compatible with USB 2.0 device plugs for the respective physical form factors. However, only USB 3.0 Standard-B receptacles can accept USB 3.0 Standard-B device plugs.
When operating in SuperSpeed mode, dual-simplex signaling occurs over 2 differential pairs separate from the non-SuperSpeed differential pair. This results in USB 3.0 cables containing 2 wires for power, 2 wires for non-SuperSpeed data, and 4 wires for SuperSpeed data.
Friday, April 24, 2009
High speed USB 3.0 device Ports are Wait For Pendrive
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