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Which of the following sequential circuit acts as a frequency divider?
- a)
- b)
- c)
- d)
Correct answer is option 'A,B,C'. Can you explain this answer?
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Most Upvoted Answer
Which of the following sequential circuit acts as a frequency divider?...
A frequency divider is a circuit that takes an input signal of a frequency fin and generates an output signal of a frequency given by:
fout = fin/n
Where, 'n' is an integer.
Option (A):
S = 1 and R = 0
∴ Y = 1 (flip-flop set)
S = 0 and R = 1
∴ Y = 0 (flip-flop reset)
So, it is a MOD-2 circuit and will act as a frequency divider circuit with:
fout = fin/2
When Q = 0 and 
= 1,D = 1
= 1,D = 1After clock pulse application, Y=1
Now, when Q = 1 and 
= 0, D = 0
= 0, D = 0After clock pulse, Y = 0
So, it is also a MOD-2 circuit and will act as a frequency divider circuit with:
fout = fin/2
Option (C):
Here, J = 1 and K = 1
So, Y will toggle its states.
Therefore, it is also MOD-2 and will act as a frequency divider circuit with:
fout = fin/2
Option (D):
Here, T = 0
So, Q = Hold state and will remain the same.
Therefore, fout = 0
Hence, the correct options are (A), (B) and (C).
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Community Answer
Which of the following sequential circuit acts as a frequency divider?...
A frequency divider is a circuit that takes an input signal of a frequency fin and generates an output signal of a frequency given by:
fout = fin/n
Where, 'n' is an integer.
Option (A):
S = 1 and R = 0
∴ Y = 1 (flip-flop set)
S = 0 and R = 1
∴ Y = 0 (flip-flop reset)
So, it is a MOD-2 circuit and will act as a frequency divider circuit with:
fout = fin/2
When Q = 0 and = 1,D = 1
= 1,D = 1After clock pulse application, Y=1
Now, when Q = 1 and = 0, D = 0
= 0, D = 0After clock pulse, Y = 0
So, it is also a MOD-2 circuit and will act as a frequency divider circuit with:
fout = fin/2
Option (C):
Here, J = 1 and K = 1
So, Y will toggle its states.
Therefore, it is also MOD-2 and will act as a frequency divider circuit with:
fout = fin/2
Option (D):
Here, T = 0
So, Q = Hold state and will remain the same.
Therefore, fout = 0
Hence, the correct options are (A), (B) and (C).
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Which of the following sequential circuit acts as a frequency divider?a)b)c)d)Correct answer is option 'A,B,C'. Can you explain this answer?
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