SUNNYVALE, CALIF. Oki Semiconductor has introduced three gallium arsenide devices for 10-Gbit/second (OC-192) networking applications.
Moni Mathew, director of GaAs and RF products, said Oki's KGL4221 16:1 multiplexer and KGL4222 1:16 demultiplexer transfer data to and from lower frequencies by synchronously merging 16-bit parallel data streams. The streams are then reconstructed into their original data formats and distributed using conventional networks. Manufactured using Oki's 0.2-mm-gate-length GaAs MESFET process, the parts operate at up to 12.5 GHz and are said to provide efficient use of bandwidth available on the fiber.
Mathew described Oki's KGL4217 as a second-generation limiting amplifier and the first 2-volt device of its kind in production. Its power consumption-250 milliwatts at 2 V-is as much as half that of other devices. Power dissipation is 0.25 watt.
"GaAs devices surpass the requirements of system manufacturers and support the exploding bandwidth demands created by the growth of the Internet," Mathew said.
All three GaAs devices are mounted in 48-pin packages and priced at less than $2,000 each in small quantities.
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EETInfo No. 607