Author - John Kornblum

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John Kornblum	Write for Microwaves & RF

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September 2005 [Systems & Subsystems]
Synchronized Synthesizers Aid Multichannel Systems
Direct-digital-synthesis (DDS)-based synthesizers are primarily known as agile frequency sources with low phase noise and excellent spurious performance. In many applications, they offer significant advantages over phase-locked-loop (PLL) synthesis methods like sub-hertz frequency tuning resolution, phase offset, and output amplitude control. With multiple source channels and synchronization capability now built into a pair of commercial DDS products—the four-channel AD9959 (...