ECET_303_Lab_5_FM_Detection_Circuit

Please show your workings and calculations

Which of the following is true about sample and hold circuit? a. the capacitor is the hold circuit b. a sample and hold circuit is a non-linear device with two inputs and consequently heterodyning occurs between these two signals. c. it introduces aperture error as a result of mixing two signals. d. all of the choices

With the aid of diagrams, show and explain how phase locking is used to demodulate a frequency-modulated (FM) signal.

Construct MOD 12 asynchronous counter. What will be the output frequency, if the input frequency is 1 MHz. If the counter is at state 6, what will be the count after 60 pulses.

If the maximum frequency deviation is 25kHz and modulating signal frequency is 12kHz.     6c.    Is this FM treated as narrow band or wide band?

Suppose the output of a balanced modulator has a center frequency of 10 MHz. The audio modulation frequency range is 1 kHz to 10 kHz. To pass the USB, what should be the center frequency in MHz of an ideal crystal filter?

Depanment of Electronics Engineering IX. A carrier signal is amplitude modulated by a sinewave. The resulting AM waveform Is shown below. zed 6V 2.5V a) What is the percentage of modulation? b) What is the amplitude of the carrier signal? c) To achieve 75 percent modulation, what amplitude of the modulating signal is needed? d) Calculate the effective voltage of the AM signal SSA AILE Q + Page 4 I 5 X. The frequency spectrum of an AM signal is shown betow: (9 pts)

What is Pulse-Width Modulation (PWM)?