1.

Four J-K flip-flops are cascaded with their J-K inputs tied HIGH. If the input frequency (fin) to the first flip-flop is 32 kHz, the output frequency (fout) is ________(a) 1 kHz(b) 2 kHz(c) 4 kHz(d) 16 kHzThe question was asked during an interview.I would like to ask this question from Flip Flops topic in division Flip-Flops of Digital Circuits

Answer»

Correct choice is (b) 2 kHz

To explain I would say: 32/2=16:-first flip-flop, 16/2=8:- second flip-flop, 8/2=4:- THIRD flip-flop, 4/2=2:- FOURTH flip-flop. SINCE the output FREQUENCY is determined on basis of the 4^th flip-flop.



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