Tunable Oscillator Shaves Phase Noise At 2905 MHz

July 24, 2008
Model CRO2905A-LF is a single-frequency voltage-controlled oscillator (VCO)from Z-Communications, Inc., designed for use at 2905 MHz. It features low phase noise of -114 dBc/Hz offset 10 kHz from the carrier with typical second harmonics of -20 dBc. The ...

Model CRO2905A-LF is a single-frequency voltage-controlled oscillator (VCO)from Z-Communications, Inc., designed for use at 2905 MHz. It features low phase noise of -114 dBc/Hz offset 10 kHz from the carrier with typical second harmonics of -20 dBc. The VCO delivers +6.5 dBm output power when running on a +5-VDC supply with +/-2.5-dB output-power flatness. It tunes with voltages of 0.5 to 4.5 V and average tuning sensitivity of 13 MHz/V. Its frequency pushing is less than 1 MHz/V and frequency pulling is less than 1 MHz into a 14-dB return-loss load. The compact oscillator, which is suitable for satellite communications systems, is supplied in a housing measuring just 0.500 x 0.500 x 0.035 in.

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.

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