If a frequency of 16.8 kHz were measured at...

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Question 1 of 205eccefa5bacbc34ba4d48694

If a frequency of 16.8 kHz were measured at the output of 'FF-3' of the circuit shown in the illustration, what would be the input clock frequency at 'FF-0'? See illustration EL-0087.

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Question 1 of 20

5eccefa5bacbc34ba4d48694

If a frequency of 16.8 kHz were measured at the output of 'FF-3' of the circuit shown in the illustration, what would be the input clock frequency at 'FF-0'? See illustration EL-0087.

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🔍 Key Concepts

• JK flip-flop in toggle mode (J = K = 1) and how its output frequency relates to its clock input • How a ripple counter / divide-by-2 chain works when several flip-flops are cascaded (FF0 → FF1 → FF2 → FF3) • Using powers of 2 (2, 4, 8, 16, …) to relate the clock frequency to each successive output (Q0, Q1, Q2, Q3)

💭 Think About

• From the timing diagram in part B of the illustration, how many input clock pulses occur for each complete cycle of Q3? • Once you know how many times the input frequency is divided to get Q3, how do you work backward from 16.8 kHz at Q3 to find the input frequency at FF0? • Look at how many times slower Q1 is than the clock, Q2 than Q1, and Q3 than Q2; what overall division ratio does that give from the clock to Q3?

✅ Before You Answer

• Confirm from the waveform that each flip-flop output frequency is exactly half of its clock input frequency. • Count the number of flip-flops between the input clock and FF3 (Q3) to get the total division factor: 2ⁿ where n is the number of stages. • After calculating the input frequency, check which option matches your result most closely and make sure it corresponds to the correct overall division ratio from clock to FF3.

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Question 1 of 205eccefa5bacbc34ba4d48694

If a frequency of 16.8 kHz were measured at the output of 'FF-3' of the circuit shown in the illustration, what would be the input clock frequency at 'FF-0'? See illustration EL-0087.

Back

Question 1 of 20

5eccefa5bacbc34ba4d48694

If a frequency of 16.8 kHz were measured at the output of 'FF-3' of the circuit shown in the illustration, what would be the input clock frequency at 'FF-0'? See illustration EL-0087.

No comments yet

Be the first to share your thoughts!

If the question has a related picture, it will appear here.

🔍 Key Concepts

💭 Think About

✅ Before You Answer

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