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TI transceiver supplies four OC-48 channels

Posted: 24 Jul 2002 ?? ?Print Version ?Bookmark and Share

Keywords:texas instruments? slk2504? sonet transceiver? sdh transceiver? oc 48 network?

Texas Instruments Inc. has announced the availability of the SLK2504 SONET/SDH transceiver that is able to supply four 2.5Gbps OC-48 channels from a single device, enabling manufacturers of telecommunications equipment to create 10Gbps OC-192 transponders for a fraction of the cost of OC-192 serial solutions.

Specifically designed for very short reach and independent four-channel OC-48 applications, the transceiver can map 16 channels of 622Mbps data into four independent OC-48 channels, two redundant OC-48 channels, or one OC-192 channel.

Manufactured using a 0.185m CMOS process, the 289-lead BGA device is compliant with the Optical Interconnect Forum (OIF) SFI-4 interface and compatible with the VSR4-03.0 optical standard.

At OC-48 rates, the device consumes 300mW per channel, translating into a 50 percent reduction in per-channel power from the company's previous generation, single-channel product. The transceiver also offers an integrated pseudo-random bit stream (PRBS) test circuitry with 231-1 and 27-1 polynomials for detection of bit errors in telecommunications applications.

The device also features a redundancy mode that enables manufacturers to develop fail-safe equipment, and integrated LVDS and PECL termination resistors that reduce component count.

The transceiver also features support for 622Mz and 155MHz reference clocks, dual 1.8V and 3.3V power supplies, hot plug and ESD protection, and selectable transmit, receive and transmit/repeat functions.

A SONET transponder reference design and evaluation module (EVM) is available based on the SLK2504 and Alvesta Corp.'s Model 3100 optical transceiver. Using an industry-standard 300-pin MSA form factor, the reference design/EVM enables manufacturers to develop OC-192 VSR transponders quickly and at a fraction of the cost of 10 Gigabit serial approaches.

The SLK2504 transceiver is sampling now, with volume production scheduled for August 2002. Planned pricing is at $80 each in quantities of 1,000.

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