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Cable Technology Feature Article

February 03, 2010

Vitesse Intros VSC8248 Quad Interconnect Integrated Circuit to Power Scalable, High-Density 10G/40G/100G Communication Systems

By Raja Singh Chaudhary, TMCnet Contributor

Vitesse Semiconductor Corporation, a provider of advanced IC solutions for carrier and enterprise networks, has reportedly introduced its VSC8248 Quad Interconnect Integrated Circuit to the market.
Featuring four Clock and Data Recovery channels with integrated Electronic Dispersion Compensation, the new component is equipped with four integrated transmit channels, and control circuitry for managing downstream modules.
The VSC8248 IC offers high-performance, high-density signal connectivity that helps customers in scaling the capacity for Storage, Server, Router, or Optical Transport Equipment. It also provides signal integrity, speed flexibility ranging from 1 Gbps to 11.3 Gbps, integrated diagnostics for remote monitoring, fault isolation, and scalability to more than 100,000 ports within all the traffic environments including a backplane, a line card, an optical fiber, or a copper cable.
As bandwidth requirements are soaring everyday, enterprises need to upgrade their facilities to higher speeds and greater port densities supporting new standards including 10, 40, and 100 Gigabit Ethernet as well as 8 and 16 Gigabit Fibre Channel.
Additionally, advanced communication systems and modules have to be implemented in highly parallel 4x10G, 10x10G, and 10x12G architectures to cope up with the higher bandwidth requirements. The new IC offered by Vitesse features its FlexEQ EDC capabilities, advanced VScope remote waveform viewing technology, an extensive suite of self test or ‘BIST’ functions and low-jitter, fully-compliant 10G BASE-KR output drivers.
According to Gary Paules, product marketing manager, Vitesse, the VSC8248 is the newest member of the celebrated FlexEQ-based product family offered by the company, and delivers compelling blends of features and functionality to meet the stringent requirements of the SFP+ and next-generation and legacy backplane markets.
Paules noted that the superior capabilities of the new IC solidifies Vitesse’s performance lead across a number of applications while supporting market trends toward higher-density, converged protocols.
The new VSC8248 provides support to multi-channel Small Form-Factor Pluggable or ‘SFP+’ host applications compliant to 10 Gbps SFP+ 10GBASE-SR, 10GBASE-LR, 10GBASE-LRM, SFF-8431, and 8.5G Fiber Channel FC-PI-4 specifications, which makes it ideal for all SFP+ formats including passive copper modules up to 20 meters.
Additionally, for incorporating it into optical applications, the users can optimize the VSC8248 TX path KR output driver for driving copper in a passive copper module application or for superior optical eye, including minimum jitter generation.
It also features ‘Built-in Self Test’ functions and loopbacks, which help in reducing prototype development, time-to-market and overall manufacturing cost. Independent module management for all four of the SFP+ module formats greatly simplifies host circuit card design while reducing bill of material costs.
Recently, Vitesse Semiconductor Corporation introduced VSC3316, a new 16-port asynchronous crosspoint switch with enhanced FlexEQ signal equalization capabilities. The VSC3316 was the highest speed crosspoint available at the time of its launch, and featured 16 lanes, each of which had the ability to operate independently from DC up to 11.5 Gbps, said the company.

Raja Singh Chaudhary is a contributing editor for TMCnet. To read more of Raja's articles, please visit his columnist page.

Edited by Marisa Torrieri