Clock Generator Beats 1-ps Jitter

Nov. 16, 2006
TO HELP THE PUSH toward ever-smaller solutions, a clock IC now brings the voltage-controlled oscillator (VCO) on chip. In addition, the AD9516 series integrates an integer-N synthesizer, two reference inputs, programmable dividers, adjustable delay ...

TO HELP THE PUSH toward ever-smaller solutions, a clock IC now brings the voltage-controlled oscillator (VCO) on chip. In addition, the AD9516 series integrates an integer-N synthesizer, two reference inputs, programmable dividers, adjustable delay lines, and 14 clock drivers. Compared with existing solutions, this solution enables designers to reduce clocking board space and bill-of-materials (BOM) costs by more than 50 percent. Impressively, the AD9516 series combines low-phase-noise clock generation with 14-channel clock distribution at jitter levels below 1 ps. The IC also promises to diminish the risks associated with the failure of discrete oscillators. The AD9516 has five versions. Each one supports a specific frequency range. The AD9516-0 includes a VCO that tunes from 2.60 to 2.95 GHz. The other parts cover lower frequencies down to the AD9516-4's VCO range of 1.50 to 1.90 GHz. P&A: $10.75 each in 10,000-piece quantities.

Analog Devices, Inc., 804 Woburn St., Wilmington, MA 01887; (781) 937-1428, FAX: (781) 937-1021, Internet: www.analog.com.

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About the Author

Nancy Friedrich | RF Product Marketing Manager for Aerospace Defense, Keysight Technologies

Nancy Friedrich is RF Product Marketing Manager for Aerospace Defense at Keysight Technologies. Nancy Friedrich started a career in engineering media about two decades ago with a stint editing copy and writing news for Electronic Design. A few years later, she began writing full time as technology editor at Wireless Systems Design. In 2005, Nancy was named editor-in-chief of Microwaves & RF, a position she held (along with other positions as group content head) until 2018. Nancy then moved to a position at UBM, where she was editor-in-chief of Design News and content director for tradeshows including DesignCon, ESC, and the Smart Manufacturing shows.

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