
Vitesse Semiconductor Corporation announced the
VSC8664 SimpliPHY, a quad Gigabit dual media Ethernet transceiver designed to
greatly improve the reliability of synchronous data transfer over IP
packet-based carrier network equipment. Reliable synchronous Ethernet solutions
will allow telecom providers to migrate to next-generation packet architectures
supporting time-sensitive applications, including voice, circuit emulation
services and streaming video.
Vitesse is the first company to develop a multi-port Gigabit Ethernet
Copper/Fiber PHY that includes two recovered clock outputs, providing both
primary and secondary clock references for a synchronous timing system. Fueled
by converged data, voice, and video applications in wired and cellular wireless
systems, demand has dramatically increased for Ethernet backhaul links capable
of implementing high quality, timing synchronization in accordance with ITU-T
Recommendation G.8261/Y.1361. Synchronous Ethernet uses the Gigabit Ethernet
physical layer to provide reference timing signal distribution over packet
networks. The secondary clock reference is required for fail-over protection,
an important feature in carrier-class communication systems.
Robust Feature Set, Highest Integration, Compact Footprint
The VSC8664 quad Gigabit Ethernet PHY is the latest addition to the Vitesse
SimpliPHY portfolio. SimpliPHY devices contain field-proven, fully adaptive
equalization and innovative timing recovery algorithms that provide greater
noise tolerance performance than the competition. Superior noise tolerance
eases system design and installation challenges in high-density Gigabit
Ethernet switches, blade servers, and line cards, as well as in legacy copper
cable plants with sub-standard cables, marginal connectors, and noise from
other communications services. SimpliPHY devices are also based on a patented,
fully balanced, voltage-mode line driver technology, allowing for lower cost
magnetics to be used.
Telecommunication and metro Ethernet OEMs can
now reduce IC chip count and associated component bill-of-material cost in
high-speed broadband equipment. The VSC8664 is offered in a 17x17 mm, 256-ball
plastic BGA package with a 1mm ball pitch. The integration of copper media-side
resistors, SerDes receiver decoupling capacitors, and quad read/write
multiplexer allows OEM vendors to design compact synchronous Ethernet
solutions.
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