DDS Sources Squeeze Out Noise

June 12, 2012

Frequency synthesizers come in many forms, including those based on analog and digital technologies. In spite of the many design approaches, the goal has always been to provide output signals that are unerringly stable. And that stability can often be hard to come by with changes in temperature and under vibration. Although direct-digital synthesizers (DDS) have had shortcomings in the past, the engineers at Synergy Microwave Corp. have refined DDS technology to the point where it is reliable and stable. This is exhibited by broadband 2-to-8-GHz sources with phase noise of only -97 dBc/Hz offset 10 kHz from the carrier and more than respectable spurious performance of -50 dBc. For more on these frequency synthesizers, click here.

About the Author

Jack Browne | Technical Contributor

Jack Browne, Technical Contributor, has worked in technical publishing for over 30 years. He managed the content and production of three technical journals while at the American Institute of Physics, including Medical Physics and the Journal of Vacuum Science & Technology. He has been a Publisher and Editor for Penton Media, started the firm’s Wireless Symposium & Exhibition trade show in 1993, and currently serves as Technical Contributor for that company's Microwaves & RF magazine. Browne, who holds a BS in Mathematics from City College of New York and BA degrees in English and Philosophy from Fordham University, is a member of the IEEE.