SAN MATEO, Calif. Velio Communications Inc. will announce a crosspoint switch next week that puts 140 serializer/deserializers onto a single chip a level of integration that the company calls unprecedented.
Each of the 140 serdes on the VC3003 chip can handle data streams of 3.125 Gbits/second. When arrayed in a three-stage switch fabric, using an arrangement known as a Clos architecture, the chips can form a 9,800-port switching fabric.
The 0.18-micron CMOS chip targets intraswitch applications like high-speed serial backplanes. Velio (Milpitas, Calif.) is tackling that market with a variety of signal integrity techniques that allow serdes to operate in close quarters, a trick previously exhibited in the company's 72 x 72 cross-connects.
"With these signal integrity technologies, we can permit these devices to work together without buffer devices in an electrical backplane," said Bill Woodruff, Velio vice president of marketing. In addition, Velio has integrated clock-and-recovery devices for every port.
Velio officials say they have chalked up some design wins for the VC3003 and hope to announce them in the fall, when the device is due to begin volume shipments.