NEWPORT BEACH, Calif.--Conexant Systems Inc. here announced a second-generation chip set for multi-port Asymmetric Digital Subscriber Line (ADSL) central-office equipment, lowering overall system costs by integrating receive op-amp and filters on the devices and eliminating the need for a memory device at each port.
Conexant said its programmable, multi-port ADSL chip set will support full-rate (8 megabits per second) and G.Lite (1.5 Mbps) remote-access services. The company said the new AccessRunner solution includes data pump and analog front end and ATM transmission convergence functions. The two-chip set also combines a programmable solution with customized ASIC Discrete Multitone Transceiver (DMT).
The new AccessRunner chip set consumes less than 800 mW per port (not including the line driver)--a power reduction that's nearly 30% less than other design solutions, according to Conexant. The two-chip set also takes up only five square inches of board space per port, which is about 40% less space than competing solutions, said the Newport Beach IC supplier.
"This chip set offers designers a flexible option allowing them to put as many ports as they want on the line card while still retaining all of the benefits of the underlying AccessRunner technology," stated Babak Nabili, product line manager.
Volume production of the new chip set is scheduled to begin in December. Samples will be made available in September. In quantities of 10,000, the chip set will cost $30 per port.