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Agilent Technologies Inc. (NYSE:A) today announced the industry’s most accurate test solution for characterizing USB 3.1 receivers. Using the
Agilent USB 3.1 receiver test set, design and test engineers in the semiconductor and computer industry can now accurately characterize and verify USB 3.1 receiver ports in ASICs and chipsets.
USB interfaces are commonly used in today’s PCs, tablets, mobile phones and external storage devices. The new USB 3.1 specification was released by the
USB Implementers Forum in 2013, and the first USB 3.1 10-Gb/s-capable products are expected to reach the market in 2014. The USB 3.1 specification more than doubles possible throughput compared with the USB 3.0 specification. This throughput improvement was achieved by doubling the physical data rate from 5 to 10 Gb/s and by changing the coding scheme from 8-bit/10-bit to 128-bit/132-bit, which requires significantly less overhead.
“Agilent’s new USB 3.1 receiver test solution fills a critical need for ASIC and chipset designers needing to quickly deliver the next generation of USB-enabled devices,” said Juergen Beck, vice president and general manager of Agilent’s Digital & Photonic Test Division. “With our expertise in accurate receiver tolerance testing, we continue to help R&D teams efficiently release robust, next-generation chipsets for the semiconductor and computer industry.”
R&D and test engineers who design and test USB 3.1 chipsets are facing new challenges. For receiver test, the doubled physical data rate means the margins for signal integrity are tighter. To ensure proper operation, the receiver must tolerate a mix of different jitter types. Three-tap de-emphasis is required to compensate for the losses of the channel. And finally, the analyzer must be able to filter 128-bit/132-bit coded skip-ordered sets with variable length during error counting.
Benefits of the Agilent USB 3.1 receiver test solution include:
accurate and repeatable receiver test results enabled by J-BERT’s built-in and calibrated jitter sources and intersymbol interference (ISI) traces;
precise emulation of pre- and post-cursor de-emphasis;
built-in clock recovery to reduce setup complexity;
error counting accomplished by real-time filtering of the USB 3.1-specific 128-bit/132-bit coded skip-ordered sets (that can vary in length from the pattern stream); and
investment protection enabled by using Agilent instruments that can be repurposed for accurate characterization in multiple gigabit test applications, such as PCIe ®, SATA, DisplayPort and others.
The Agilent USB 3.1 receiver test solution consists of either: