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To: Sundar Rajan who wrote (17731)	5/23/1998 8:55:00 PM
From: pat mudge	Respond to of 25960

This was posted on the ASND thread and I'm wondering if any of these chips require submicron technology, or are fiber optic chips different. Sorry to be so uninformed. <<< Chip Makers Eye Fiber Optic Market pubs.cmpnet.com (9:45 a.m. EDT, 5/22/98) By Mark LaPedus In what could be a sneak preview of next month's Supercomm '98 trade show in Atlanta, several chip makers this week begun rushing out products designed for the emerging fiber-optic market. Applied Micro Circuits Corp., Lucent Technologies Inc., TranSwitch Corp., Vitesse Semiconductor Corp., and a slew of other companies have or will show SONET/SDH chips at Supercomm '98, which is slated for June 7-11. Eariler this week, for example, the Microelectronics Group of Lucent Technologies got the ball rolling by announcing the TMPR28051, a chipset that complies with both the North American (SONET) and European (SDH) fiber-optic transmission standards. Consisting of two chips known as a mapper and multiplexer, Lucent's chipset converts 28 channels of DSI signals, or 21 channels of E1 signals, into a 51.84- to 155.2-Mbit/s format, according to Dave Romero, marketing manager for Lucent's Microelectronics Group. The mapper and multiplexer are both available in 208-pin SQFP packages. Pricing for the mapper chip is $165 in 10,000-piece lots, while the multiplexer IC is $140, in similar quantities. Another chip maker, Camarillo, Calif.-based Vitesse Semiconductor Corp., rolled out two gallium arsenide-based, physical-interface chipsets for 2.5-Gbit/s SONET/SDH systems. The products, called the VSC8161 and VSC8162, are designed to reduce overall systems cost for OC-48/STM-16 networks. The mainstream SONET market falls at OC-48 transmission rates, but the OC-192 arena will emerge in the future, according to Andrew Schmitt, telecom marketing engineer for Vitesse. The VSC8161 is available in a 100-pin PQFP package. The VSC8162 is available in a 128-pin PQFP package. Pricing is $198 for the VSC8161, and $158 for the VSC8162, both in 1,000-unit quantities. Production is slated this September. TranSwitch plans to expand its SONET/SDH line later this month, according to Santanu Das, president and chief executive of the Shelton, Conn.-based company.>>>> Pat