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16G chipset offers 14Gb/s performance

Posted: 21 Sep 2011 ?? ?Print Version ?Bookmark and Share

Keywords:fibre channel module? multirate module?

Gennum Corp. has launched its new module chipset, the 16G Fibre Channel module chipset, which includes the GN2017 and GN1068, which is compatible with recent Fibre Channel applications.

Claimed to be the industry's first and only 4G to 16G multirate module IC solution, the chipset is comprised of two Gennum productsthe GN2017 and the GN1068. The GN2017 transceiver is a dual CDR (clock and data recovery) with integrated VCSEL driver and limiting amplifier, which addresses signal integrity issues at 14Gb/s speeds, the data rate adopted for 16G Fibre Channel. The GN1068 is a rate-selectable TIA (transimpedance amplifier), which offers parametric performance at 14Gb/s with the lowest-available power consumption.

Fibre Channel networks are quickly forced into doubling their line rates while improving their cost and power efficiency because of the increasing bandwidth, and capacity requirements imposed on switching technology by cloud computing.

Gennum's combination of a dual CDR transceiver solution with a low power TIA further bolsters Fibre Channel networks as the preferred conduit for linking virtual servers to storage at 14Gb/s line rates, allowing customers to upgrade the speed of their switching networks while remaining compatible with existing protocols.

The GN2017 is compliant with the FC-PI-5 standard for fibre optic links and also supports Fibre Channel over Ethernet and legacy Fibre Channel rates. A single module can be designed to support multiple standards. It is the first 14Gb/s device in the industry that lowers the total BOM cost by integrating the limiting amplifier, VCSEL driver and dual CDRs into a single chip. The chip addresses the strict SFP+ module space and power requirements with a small 55mm 32-pin QFN package, and enables modules with less than 1W power consumption.

The GN1068 features 90mW of power consumption under typical conditions, making it the lowest power >10Gb/s TIA available on the market. It features on-chip bandwidth selection across multiple Ethernet and Fibre Channel applications, ranging from 4 to 14Gb/s. Based on existing Gennum TIA, the GN1068's low input noise and high gain promises sensitivity performance while excluding crosstalk and power supply noise.

The GN1068 TIA and GN2017 transceiver chips are currently in full production, with the TIA available in bare-die format and the transceiver chip available in a 55mm QFN package.





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