CAMARILLO, Calif. -- Vitesse Semiconductor Corp. here announced a quad 5-bit dual data rate (DDR) transceiver for Gigabit Ethernet applications, including network switches, routers, host adapters, stackable and backplane interconnection equipment and other high-density system architectures that require compliance to IEEE 802.3z specifications.
Each of the four 5-bit SSTL-2 VSC7185 transmitters accepts a 10-bit word input (8B/10B encoded), using both clock transitions, and serializes the data for transmission. The receivers also each perform the reverse upon the serially received data.
"In listening to our customers, we realized that there is a requirement for a second-source product like the VSC7185," said Fred Weniger, gigabit product marketing manager for Vitesse. "By utilizing an industry-standard package and pinouts on the VSC7185, we offer networking equipment designers an option for systems now in production,"
Vitesse said its VSC7185 is a drop-in replacement for most quad 5-bit transceivers, and it features a typical random jitter of 5-picosecond RMS, and typical deterministic jitter of 35 ps peak to peak. The jitter tolerance of the VSC7185 allows for operation under less than optimal conditions and provides for more robust system operation, according to Vitesse.
Production quantities of the VSC7185 in a 208 pin, 23-mm ball-grid array (BGA) package are now available. The DDR transceiver is priced at under $30 in quantities of 1,000.