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Adaptive Mode-Coupled Harmonically Tuned High-Q Ultra Low Phase Noise Sources

Historically, synthesizer developers have relied on a crystal based multiplied 1 GHz reference oscillator featuring excellent phase noise performance at frequencies of 3 GHz and above. A frequency multiplier crystal oscillator can offer low phase noise...

September 11, 2011
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Various reference oscillator schemes are possible as shown in Figure 1 . 5 A 10 MHz temperature-compensated crystal oscillator (TCXO) provides small size and low cost benefits for low-to-moderate performance applications, but higher multiplication factors can degrade the noise floor significantly. Improved stability and phase noise performance can be...
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