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Amplifiers/Converters??

CDR Serdes trims down cost, power use

Posted: 12 May 2008 ?? ?Print Version ?Bookmark and Share

Keywords:CDR Serdes? FTTH? clock data recovery chip?

Maxim Integrated Products has introduced the MAX3886 multirate, clock data recovery (CDR) Serdes with data rates up to 2.488Gbit/s. By combining the functions of three ICs (clock and data recovery, serialization, and deserialization) within a single, highly integrated device, 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 best-in-class 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 -40C to 85C extended temperature range. It is available in an 8mm x 8mm, 56-pin TQFN package. Prices start at $9.97 (1000-up, FOB USA). An evaluation kit is available to speed designs.





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