Determine the output frequencies of the two plls

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Reference no: EM131493757

Question: Two PLL configurations are shown in Fig. Assume the SSB mixer adds its input frequencies. Also, assume f1 is a constant frequency provided externally and it is less than fREF. The control voltage experiences a small sinusoidal ripple with a frequency of fREF. Both PLLs are locked.

(a) Determine the output frequencies of the two PLLs.

(b) Determine the spectrum at point A due to the ripple.

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Reference no: EM131493757

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