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Precision frequency synthesizer alleviates noise

Posted: 09 Jun 2008 ?? ?Print Version ?Bookmark and Share

Keywords:jitter? synthesizer precision frequency? storage telecom datacom?

Micrel Inc. introduces the SY89610L, a precision frequency synthesizer featuring ultralow jitter. The new device is targeted at datacom, telecom, servers, and storage markets, specifically, SONET/SDH, 10GbE FEC, 10GbE LAN PHY, and add-drop muxs applications. The IC is currently available in volume with pricing starting at $12.84 for 1,000 quantities. Typically, the cost of these devices can run about $60 each.

"Micrel's new device not only brings the cost down by a factor of nearly five, it also eliminates noise while lowering space requirements," said Thomas Wong, VP, high bandwidth products. "Finally, the SY89610L tames jitter by offering output of typically 1ps rms. Other synthesizers on the market still typically have 40ps rms jitter."

According to Micrel, the product takes in selected frequency clocks between 19MHz and 694MHz and puts out selected frequency with very low jitter. The device input accepts AC- or DC-coupled differential signals such as LVDS, LVPECL, and CML for maximum flexibility. This IC has an LC Tank VCO and auto-tune circuit that improves signal performance.

The device comes in a space-saving 32pin MLF package.

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