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Maxim's new CDR saves cost, power

Posted: 12 May 2008     Print Version  Bookmark and Share

Keywords:CDR  IC 

Maxim Integrated Products has introduced the MAX3886 multi-rate, clock data recovery (CDR) Serdes, which combines the functions of three ICs (clock and data recovery, serialisation, and deserialisation) within a single, highly integrated device.

With data rates up to 2.488Gbps, the MAX3886 provides significant cost and power savings to manufacturers of PON equipment for the FTTH market. Consequently, this device is suitable for the optical network terminals used in FTTH installations such as Verizon FiOS.

To enhance design flexibility, Maxim's proprietary CDR technology enables the MAX3886 to use either a low-cost, 19.44MHz, SMD-type crystal resonator or an external LVCMOS source as a frequency reference, while still providing jitter tolerance to support forward-error correction. Additionally, the upstream rate can be configured to be equal to the downstream rate (symmetric operation) or as a submultiple of the downstream rate (asymmetric operation).

The MAX3886 operates from a 3.3V supply and is fully specified over the -40°C to 85°C extended temperature range. It is available in an 8mm x 8mm, 56-pin TQFN package. Prices start at Rs.402.03 ($9.97 1000-up, FOB USA). An evaluation kit is available to speed designs.





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