Nonlinear Effects In Oscillators and Synthesizers (Invited)
نویسنده
چکیده
-The proposed paper shows existing problems in VCOs and synthesizers due to the nonlinearities in the active devices and external integrated circuits. This paper proposes a design guidance on how to minimize such effects in oscillators by using nonlinear, rather than linear, tools. In synthesizers, the reference frequency and its harmonics will mix with the output frequency in the phase detector and cause spurious signals. A new method is proposed to introduce a synchronized jitter in the reference, which will move these spurious far enough outside the loop bandwidth to be suppressed by 90dB.
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