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Micrel's latest clock synthesizer

Posted: 03 Oct 2005 ?? ?Print Version ?Bookmark and Share

Keywords:sy89538l? clock synthesizer? micrel?

The SY89538L integrated programmable clock synthesizer and fanout is part of Micrel's precision PLL-based clock generation family targeted at enterprise switch, router and multiprocessor server applications. This family is designed for generating internal system timing requirements up to 750MHz for multiple ASICs, FPGAs and NPUs.

Available in the H64-1 packaging option, the SY89538LHG and SY89538LHGTR (2) devices integrate the following blocks into a single monolithic IC:

? PLL (Phase-Lock-Loop) based synthesizer;

? Zero-delay MUX and feedback capability;

? 1:4 LVPECL fanout;

? 1:3 LVDS fanout;

? Clock generator (dividers) ;

? Logic translation (LVPECL, LVDS); and

? Five-independently programmable output banks.

This level of integration minimizes additive jitter and part-to-part skew associated with discrete alternatives, resulting in superior system-level timing with reduced board space and power, Micrel added.




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