1. Use a VCO with frequency sensitivity 2 KHz/mV and quiescent frequency 198 KHz to generate an FM signal s(t) = 10 cos(400πt + p(t)), where the unit of time is milliseconds, and the phase (t) is as sketched in the following figure. Derive and sketch the input to the VCO. op(t) 6л 3 3π 1 t (ms) 2 4 5 6 7 8

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Frequency Modulation

Frequency modulation is a method or process of encoding the data of a specific signal (analog or digital) by modulating the carrier wave frequency according to the frequency of the modulated signal. Modulated signals are nothing more than information or data that should be conveyed after being converted into electronic signals.