# PLL Applications MCQ’s

This set of Signals & Systems Multiple Choice Questions & Answers (MCQs) focuses on “PLL Applications”.

1. Calculate the output frequency in a frequency multiplier if, fin = 200Hz is applied to a 7 divide by N-network.
a) 1.2kHz
b) 1.6kHz
c) 1.2kHz
d) 1.9kHz

2. For what kind of input signal, the frequency divider can be avoided frequency multiplier?
a) Triangular waveform
b) Square waveform
c) Saw tooth waveform
d) Sine waveform

3. How to obtain a desired amount of multiplication in frequency multiplier?
a) By decreasing the multiplication factor
b) By increasing the input frequency
c) By selecting proper divide by N-network
d) None of the mentioned

4. What must the typical value of n for a frequency multiplication / division? (n->order of harmonics)
a) n ≤ 12
b) n > 11
c) n < 10
d) n = 7

5. The frequency corresponding to logic 1 state in FSK is called
a) Space frequency
b) Mark frequency
c) Both mark and space frequency
d) None of the mentioned

6. Which filter is chosen to remove the carrier component in the frequency shift keying?
a) Three stage filter
b) Two stage filter
c) Single stage filter
d) All of the mentioned

7. Determine the offset frequency of frequency translation, when the output and input frequency are given as 75kHz and 1000Hz.
a) 35 kHz
b) 20 kHz
c) 29 kHz
d) 14 kHz

8. Find the frequency shift in FSK generator?
a) 230 Hz
b) 250 Hz
c) 180 Hz
d) 200 Hz

Happy
0 %
0 %
Excited
0 %
Sleepy
0 %
Angry
0 %
Surprise
0 %

5 Star
0%
4 Star
0%
3 Star
0%
2 Star
0%
1 Star
0%