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Equalizer eases transition to 8.5G

Posted: 24 Sep 2008 ?? ?Print Version ?Bookmark and Share

Keywords:receiver retimer equalizer? Fibre Channel? 8.5G update?

PHY1068 equalizer

Phyworks has introduced an equalizer and retimer receiver designed to greatly simplify the upgrade of existing 4.25G Fibre Channel equipment to full 8.5Gbit/s operation. A highly integrated chip, the PHY1068, offers all the functionality needed to double the speed of legacy backplanes, without expensive chassis upgrades. While in data center environments, the PHY1068 supports 8.5G copper cable interconnect between HBAs, switches and blade servers through thin gauge twin-ax cable assemblies, thereby replacing expensive optical interconnect at distances up to 30m.

Implementing Phyworks' class leading FFE/DFE equalization technology, the PHY1068 recovers error free data from signals severely degraded by crosstalk, channel loss and reflections typical of legacy backplane environments. Equalizer adaptation is fully integrated which eliminates the need for costly microcontroller support and complex algorithm development. The integrated retimer guarantees excellent jitter performance, even under extreme conditions of received jitter and noise.

The chip's very low power dissipation of less than 0.7W, small footprint and low external component count means equipment port densities can be increased and host boards and mezzanine interface cards easily upgraded. The PHY1068 is provided in a 36-pin BGA, 5mm x 5mm package with a 0.8mm ball pitch. The chip architecture is also extendable to 17G, the next step forward in Fibre Channel speeds.

Supported by a full reference design, The PHY1068 is sampling now and is available through Phyworks' regular distribution channels. The chip is priced at less than $20 in volume.





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