Question: Consider the FM discriminator shown in Figure 4.38. The envelope detector can be considered ideal with an infinite input impedance. Plot the magnitude of the

Consider the FM discriminator shown in Figure 4.38. The envelope detector can be considered ideal with an infinite input impedance. Plot the magnitude of the transfer function E(f) / X_r(f). From this plot, determine a suitable carrier frequency and the discriminator constant K_D, and estimate the allowable peak frequency deviation of the input signal.

Figure 4.38

L = 10-3 H C = 10-9 F Envelope e(t) R = 103 Q x,(t) ) detector

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