To: The Ox who wrote (1434 ) 6/11/1998 5:23:00 PM From: Beltropolis Boy Respond to of 4710
for the more technically astute, does this new TI transceiver concern you or does it merely portend a 'trŠs vitesse' obsolescence of scuzzy? (my apologies to the fluent.) also (and while i know it's often way overemphasized), has anyone noted the large number of insider transactions? granted, they're primarily pre-split in apr and may. i'll post in a follow-up. your comments are valued. -chris. ------------------------------------------------------------------------TI offering CMOS-based 2.5-Gbit/s transceivers -- New technology points to higher speeds, lower voltages By Darrell Dunn June 08, 1998, TechWeb News Dallas -- Texas Instruments Inc. has begun sampling a new CMOS-based transceiver technology capable of simultaneously sending and receiving data at up to 2.5 Gbits/s. The technology is based on high-speed recovery techniques developed by TI over the past two years, and is expected to be used in high-speed serial communications transceivers for IEEE 1394, Gigabit Ethernet, and Fibre Channel applications. The first device using the 2.5-Gbit/s technology will be an 800-Mbit/s 1394 physical-layer (PHY) device, which is expected to ship in volume by the end of the year. The chip is expected to be used in PCs for I/O and on-computer system backplanes. "This technology will enable devices that consume less power than what's available on the market today ... with a road map to even higher speeds and lower voltages," said Larry Blackledge, worldwide bus solutions marketing manager at Dallas-based TI. Production devices for the Ethernet and Fibre Channel markets are expected to move into manufacturing as market demand increases, he added. Previously, transceivers capable of 2.5 Gbits/s were fabricated using more expensive processes, such as gallium arsenide (GaAs) or high-speed BiCMOS. By using a standard CMOS process, the 2.5-Gbit/s transceivers consume less power and are more easily scalable to smaller geometries, Blackledge said. The CMOS transceivers can also be more easily integrated with other CMOS devices, such as hard-drive controllers and DSPs. "Texas Instruments' 2.5-Gbit/s transceiver technology is impressive in that it provides the performance of GaAs or bipolar, but with the power of CMOS," said Bruce Johnson, a consultant at Seagate Technology Inc., Scotts Valley, Calif. "This performance is apparent with Fibre Channel evaluations in Seagate FC disk drives shipping today with data rates of 1.0625 Hz." The TI transceiver will operate from either a 2.5- or a 3.3-V supply. Transmission media for the transceiver include a printed-circuit board, copper cables, or fiber-optic cables. In addition to an internal loop-back test, the transceiver technology incorporates a pseudorandom bit-stream (PRBS) generator that can be used to perform several types of tests, including built-in self-test for all the circuitry on the device. The transceiver can generate a PRBS and transmit it to a bit error-rate tester to verify the accuracy of its transmit functions, according to TI. Copyright 1998 CMP Media Inc.