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West Bay framers target low-cost SONET/SDH equipment

Posted: 21 Nov 2002 ?? ?Print Version ?Bookmark and Share

Keywords:west bay semiconductor? wb1400? wb1510? sonet framer? sdh framer?

West Bay Semiconductor Inc. has introduced the WB1400 and WB1510 SONET/SDH channelized framers and pointer processors that are targeted at low-cost SONET/SDH metropolitan access telecommunications equipment applications such as digital cross-connects, multi-service provisioning platforms, broadband aggregator, and add-drop muxes.

The WB1400 is a single-chip 4xOC-3/STM-1 or 1xOC-12/STM-4 SONET/SDH fully channelized framer and pointer processor that enables equipment makers to design a single card for all OC-12/STM-4 aggregate bandwidth applications.

Available in a 35-by-35mm, 684-pin PBGA package, the IC has a triple-redundant system side interface and cross connect feature that enables connections to multiple devices or cards, such as tributary interfaces at the DS1/E1/DS3/E3 or OC-3/STM-1 rates. In the OC-3/STM-1 mode, the WB1400 incorporates an on-chip clock and data recovery function.

The WB1510 is touted to be the industry's first single chip 2xOC-12/STM-4 or 2xOC-3/STM-1 SONET/SDH fully channelized framer and pointer processor. It allows equipment makers to design 2-fiber line interfaces for ring applications, using a single chip.

Pin-compatible with the WB1400, the WB1510 also has a 2xOC-3/STM-1 mode that enables system engineers to design a single line interface card for both OC-12/STM-4 and OC-3/STM-1 rates. In the OC-3/STM-1 mode, the WB1510 also includes a built-in clock and data recovery circuit.

Both ICs are implemented in a standard 0.25?m CMOS process, and operate across the industrial temperature range of -40C to 85C. The WB1400 is priced at $130, while the WB1510 is priced at $165 in 10,000-unit volumes.

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