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Ques:- What is the relation between dB and change of signal?
Asked In :- mediatek, arqiva,
Right Answer:
The decibel (dB) is a logarithmic unit used to express the ratio of two values, commonly power or intensity. A change of 3 dB represents a doubling or halving of power, while a change of 10 dB represents a tenfold increase or decrease in power.
Ques:- Give a circuit to divide frequency of clock cycle by two?
Right Answer:
A simple circuit to divide the frequency of a clock cycle by two is a D flip-flop. Connect the clock signal to the clock input of the D flip-flop, and connect the Q output back to the D input. The output Q will produce a clock signal that is half the frequency of the input clock.


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