Q-Tech Corp.
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OCXOs Offer Ultra-Low Noise and Jitter Over Wide Frequency Ranges

June 6, 2025
Q-Tech's OCXOs provide ultra-low close-in phase noise and noise floor plus reduced jitter; ideal for radar, communication, and RF measurement systems.

Q-Tech Corp.’s AXIOM ULN oven-controlled crystal oscillators (OXCOs), designed and built by its German affiliate AXTAL, offer ultra-low phase noise (close-in and noise floor). The devices provide higher resolution for radar systems, higher-quality and more transmissible data for communications systems, and improved accuracy and lower measurement limits for RF test systems. Attendees of the International Microwave Symposium in San Francisco can see these devices in Booth #4215.

The ultra-low phase-noise OCXOs can be customized to achieve near-ideal multiplication. What’s more, by allowing for the use of various noise-cancellation techniques, they can transfer noise levels up to the gigahertz range. They also reduce jitter with RMS jitter values of <50 fs for integration ranges of 10 Hz ~ 30 MHz.

The AXTAL line comprises 16 devices, including the AXIOM75ULN and AXIOM5050ULN (80 to 160 MHz) and the multiple-output AXIOM2700 (50 MHz to 7.0 GHz), all offering exceptional phase noise. At lower frequencies (non-multiplied), the AXIOM ULN OCXOs can obtain levels of <–140 dBc/Hz at 100-Hz offset and a noise floor down to –185 dBc/Hz. These benefits make the AXIOM OCXOs suitable for use in a range of sophisticated applications requiring frequency generation from MHz to GHz.

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David Maliniak | Executive Editor, Microwaves & RF

I am Executive Editor of Microwaves & RF, an all-digital publication that broadly covers all aspects of wireless communications. More particularly, we're keeping a close eye on technologies in the consumer-oriented 5G, 6G, IoT, M2M, and V2X markets, in which much of the wireless market's growth will occur in this decade and beyond. I work with a great team of editors to provide engineers, developers, and technical managers with interesting and useful articles and videos on a regular basis. Check out our free newsletters to see the latest content.

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In his long career in the B2B electronics-industry media, David Maliniak has held editorial roles as both generalist and specialist. As Components Editor and, later, as Editor in Chief of EE Product News, David gained breadth of experience in covering the industry at large. In serving as EDA/Test and Measurement Technology Editor at Electronic Design, he developed deep insight into those complex areas of technology. Most recently, David worked in technical marketing communications at Teledyne LeCroy, leaving to rejoin the EOEM B2B publishing world in January 2020. David earned a B.A. in journalism at New York University.

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