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Cortina unveils 28nm EDC PHY architecture

Posted: 05 Dec 2012 ?? ?Print Version ?Bookmark and Share

Keywords:EDC PHY architecture? 100G? 400G? CS4343?

Cortina Systems Inc. has revealed what it says is the industry's first 28nm EDC PHY architecture. According to the company, the next-generation architecture becomes the technological foundation for future Cortina 25G and multi-level PAM products. The architecture is engineered to drive dramatically lower power and support higher bandwidth to scale to 100G and 400G applications. The density of the 28nm technology will enable higher port counts and increased faceplate and backplane bandwidth for next generation data centre, carrier and enterprise systems, added Cortina.

The first member of this architecture is the CS4343 Octal 15G electronic dispersion compensation (EDC) device. The CS4343's baseline architecture leads the industry less than 1ns latency in a 17mm x 17mm package, while lowering power consumption by 50 per cent over previous generations. The CS4343 provides a wide operating frequency range from 1-15Gb/s, and support for all the major standards used in data centres, storage, high performance computing and wireless backhaul applications including 1GbE, 10GbE, 40GbE, 100GbE, InfiniBand, Fibre Channel, CPRI and OBSAI.

The CS4343 PHY functionality supports eight full-duplex 10G links or two full-duplex 40G links. The device has a wide operating frequency range covering 1GbE, 10GbE, 1G FC, 2G FC, 4G FC, 8G, 16G FC, Infiniband SDR, DDR, QDR and FDR, and CPRI Options 1 to 7. EDC capability allows the device to operate with linear SFP+/QSFP optical modules to Direct Attach Copper, and 10GBase-ZR and DWDM SMF applications. The device is fully compliant to 10G SFP+, 802.3ba 40G and 100G nPPI, and nAUI specifications. The fully autonomous device does not require external processors to control the convergence or dynamic adaption of the dispersion compensation. The CS4343 also integrates the auto-negotiation and coefficient training functionality for 40G CR4 applications, and rate negotiation 16G Fibre channel, for seamless interoperability with existing equipment.

The CS4343 includes an integrated 2x2 switch enabling redundant backplane and faceplate applications without needing an external crossbar device, said the company. The integrated switch functionality supports 1+1 protection switching and broadcast functionality in both directions. The device supports link quality monitoring for the inactive redundant link to enable fast switching. In addition, the CS4343 has a fully symmetric architecture with EDC capability on both ingress and egress directions. This enables applications such as translation from KR4 backplane to CR4 cable in blade server designs using a single device, reducing system cost.

The CS4343 has integrated AC coupling capacitors, and supports reference clock free operation to reduce overall system BOM cost. The device also includes capabilities such as real time eye monitoring, loopbacks, PRBS generators and checkers, and hardware interrupt and GPIO pins for test and debug purposes.

The Cortina CS4343 device is currently sampling.

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