Company Debuts Ultra Low Power, High-Performance CDR at OFC 2011 as Latest Addition to Expansive 10Gb/s-100Gb/s Portfolio
Enabling next-generation 4x25Gb/s transceivers for the emerging 100Gb/s networking market, Gennum announced its new clock and data recovery (CDR) integrated circuits designed to support the implementation of 100Gb/s Ethernet optical transceivers. The GN2425 and GN2426 are designed to handle 25Gb/s data streams within next-generation 100Gb/s pluggable fiber-optic modules, line cards and direct-attach copper cables. With a feature set configured for optimal jitter performance at low power, the new CDRs will enable OIF CEI-28G-VSR retimed interfaces by compensating for losses in the data transmission and by resetting the jitter budget.
As global Internet traffic is expected to triple over the coming years, significantly more bandwidth will be required, driving the need for large-scale network upgrades. According to Ovum’s year-end 2010 data communications component report, the market for 100GbE datacom transceivers is expected to grow at a CAGR of more than 55% over the next five years.
The use of a retiming architecture is vital in overcoming signal impairments at these high speeds. The CDR does this by conditioning the signal resulting in a high margin output inside an optical transceiver or on a line card. This allows for the serializer and deserializer to be positioned outside of the CFP2 module enabling a simpler, lower power and lower cost solution.