Discuss the advantages and disadvantages of crystal oscillators.
slove 5
(Use a BJT op-amp)
1 You’ve been asked to build an alarm system using monstable multvibrator having an active
time pf 100msec.. Explain the principle of operation and the type feedback of the op-amp.
What is the advantage of this circuit?
2 You’ve been asked to build a low frequency square wave generator using a basic comparator
having a frequency of 10kHz and 50% duty cycle. Explain the principle of operation and the
type of feedback of the op-amp. What is the advantage of this circuit?
3 3 Build a Wein-Bridge oscillator using, C=1µF and +10V power supply to produce 10 kHz
sinusoidal waveform. Generate your plots and compare output results. Highlight any
discrepancies and discuss what happens if we want to increase the frequency to 100 kHz.
4 Build a high frequency Colpitts oscillator producing 10kHz Discuss its advantage over RC
oscillators. How can you modify the circuit to include a crystal in you circuit. What is a
typical application of such an oscillator?
5 Discuss the advantages and disadvantages of crystal oscillators.
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