Vitesse Chipset Enables Next-Generation Fiber-to-the-Home Deployments

CAMARILLO, Calif.—(BUSINESS WIRE)—March 10, 2009— Vitesse Semiconductor Corporation (Pink Sheets: VTSS), a leading provider of advanced IC solutions for Carrier and Enterprise networks, announced today the industry’s first complete physical media dependent (PMD) chipset for 10 Gbps Ethernet Passive Optical Networks (10G-EPON). Designed to be used in next-generation Fiber-to-the-Home (FTTH) deployments, this chipset provides OEMs an accelerated and cost-effective migration path to implement faster data rates within the existing network infrastructure. This technology ultimately delivers a high-quality, high-bandwidth, on-demand multimedia experience to consumers.

Driving the need for these higher data rates in FTTH are densely populated residences, such as multi-dwelling units (MDUs), and small and medium sized enterprise (SME) businesses where bandwidth-intensive triple-play applications and services (HD IPTV, VoD, VoIP, and peer-to-peer networking) are now a requirement. In these applications, standards compliant PON-based technology must be used to achieve the ever-increasing demand on bandwidth.

To address this need in the network, Vitesse leveraged its success in 1G-EPON devices to create the 10G-EPON chipset. It pairs four integrated circuits (ICs) to address both the transmit and the receive paths within the network. For the transmit path, Vitesse offers the industry’s first 10 Gbps burst mode driver combination: a best-in-class 10 Gbps direct-modulated-laser diode (DML) driver, the VSC7981, with a highly integrated laser burst mode controller, the VSC7960. On the receive side, Vitesse provides a high-performance continuous mode solution using its VSC7978 10 Gbps transimpedance amplifier (TIA) and the VSC7987 limiting post amplifier. Together, this 10G-EPON chipset is compliant with the IEEE P802.3av/D3.0 standard which allows for the coexistence of 1G-EPON and 10G-EPON systems on the same distribution network.

“Considering the current mass-deployed 1G-EPON in Asia is growing over 40-percent year-over-year, many industry experts foresee next-generation 10G-EPON-based products maturing enough for initial commercial deployments by late 2009 or early 2010,” said Angus Lai, product marketing manager for Vitesse. “Understanding the needs of our customers and consumers, Vitesse has capitalized on its success with 1G-EPON deployments in Asia to provide the first 10G-EPON standards-compliant chipset that makes next-generation FTTH technology a reality.”

The 10G-EPON Chipset

The VSC7981 and the VSC7960 deliver full compliance to the laser on-off timing, optical transmit power, extinction ratio and eye mask margin requirements. Furthermore, the VSC7960 provides rich integrated features such as a digital burst mode automatic power control (APC) loop to maintain constant laser transmit power. The bias current pre-loading feature minimizes burst mode initialization time for fast start-up. Both devices are packaged in a small footprint and low cost 5x5mm QFN package suitable for designs in small form factor ONU modules.

The VSC7978 and the VSC7987 offer a complete limiting receiver solution for 10G-EPON downstream applications. Additionally, the VSC7987 features nine levels of programmable output pre-emphasis to compensate for signal loss between the outputs of this device to the input of the SerDes device. The low 3mV differential input sensitivity optimizes the performance of the ROSA.


Vitesse’s 10G-EPON chipset is sampling today. The ICs in this solution can also be purchased independently. A reference design evaluation board for 10G-EPON with various transmit-optical-subassembly (TOSA) devices and complete firmware will be available in the second quarter of 2009. The 1G-PON chipsets are in full production. Pricing is available for customers upon request.

Vitesse to Demonstrate at Optical Fiber Conference (OFC) in San Diego

Vitesse will showcase a live demonstration of 10G-EPON symmetric burst mode driver and SerDes solution at the OFC/NFOEC 2009 Expo, March 24-26, 2009, in San Diego, Calif., at the San Diego Convention Center. In addition, Vitesse will chair the “Advanced PON/10G-PON” technical session on Monday, March 23, from 4-6 p.m. during the NFOEC NME session. Please visit Vitesse at Corporate Village Rooms #3044 and #2945 in Hall D.

About Vitesse

Vitesse designs, develops and markets a diverse portfolio of high-performance, cost-competitive semiconductor solutions for Carrier and Enterprise networks worldwide. Engineering excellence and dedicated customer service distinguish Vitesse as an industry leader in Gigabit Ethernet LAN, Ethernet-over-SONET, Fibre Channel, Serial Attached SCSI, Optical Transport, and other applications. Vitesse innovation empowers customers to deliver superior products for Enterprise, Access, Metro, and Core applications. Additional company and product information is available at

Vitesse is a registered trademark in the United States and/or other jurisdictions of Vitesse Semiconductor Corporation. All other trademarks or registered trademarks mentioned herein are the property of their respective holders.

Safe Harbor

Statements made in this release that are not historical facts are “forward-looking” statements (as defined in the Private Securities Litigation Reform Act of 1995) that involve risks and uncertainties and are subject to change at any time. These forward-looking statements may include, but are not limited to, statements containing words such as “anticipate,” “believe,” “plan,” “estimate,” “expect,” “hope,” “intend,” and similar expressions. Factors that could cause actual results to differ are identified in the public filings made by Vitesse with the Securities and Exchange Commission and include the fact that we have disclosed that you should not rely upon our published financial statements and the fact that we have not filed all of our reports required by the Securities Exchange Act of 1934. More information on factors that could affect our business and financial results are included in our public filings made with the Securities and Exchange Commission, which are available on the web site of the Securities and Exchange Commission, .

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