Norwood, MAAnalog Devices Inc. announced the availability of a SFP (small form factor pluggable) optical transceiver chipset and reference design that supports both gigabit Ethernet and Fibre Channel data rates up to 4.25 Gb/s in storage area network (SAN) equipment.
According to market research firm IDC (International Data Corporation), Fibre Channel switch port shipments are expected to grow annually by an average of 40 percent through 2008. Optical transceivers that connect to Fibre Channel switches at 4.25 Gb/s will be key components in this market, enabling developers of SAN equipment to double the existing data rate, while remaining compatible with older modules running at 1 Gb/s and 2 Gb/s data rates.
The high-performance 1x/2x/4x SFP chipset meets the requirements of the Fibre Channel MSA (Multisource Agreement) specifications and is optimized for SFF-8472 digital diagnostics. The SFP chipset includes four Analog Devices' products:
The ADN2882, a 4.25 Gbps transimpedance amplifier (TIA), with sensitivity of -22 dBm and power dissipation of 75 mW.
The ADN2892, a 4.25 Gbps limiting amplifier, features selectable bandwidth for operation at the 1x and 2x Fibre Channel rates (1.063 Gbps and 2.125 Gbps) and the gigabit Ethernet rate (1.25 Gbps) ensuring backwards compatibility to 1x and 2x Fibre Channel modules, while dissipating 160 mW of power.
On the transmit side, Analog Devices offers a choice of laser diode drivers.
ADuC7020 precision microcontroller
The 1x/2x/4x multi-rate reference design includes an SFP board and the optics to enable immediate evaluation, speed time to market and reduce development costs. In addition, the reference design includes a host board, I(2)C support, Gerber files, object and source code for the microcontroller, a graphical user interface and technical documentation.
The SFP reference design is available now. The ADN2882 TIA, ADN2892 limiting amplifier and ADN2870 dual-loop laser driver are available in production quantities now. Samples of the ADN2882 TIA are available in either die form or in a receive optical sub-assembly (ROSA). The ADN2871 single-loop laser driver will sample in February of 2005. The ADuC7020 precision microcontroller is sampling now and will be available in production quantities in July 2005. The chipset will sell in high volume for $3.90.
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