Figure 4 A basic phase- locked loop
-Refer to Figure 4. The block with the ? represents the
A) phase detector
B) low- pass filter
C) linear multiplier
D) VCO
Correct Answer:
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Q1: In an AM receiver, the output signal
Q2: In an AM or FM receiver, the
Q3: To create the difference frequency in an
Q5: Both AM and FM receivers have a
A)de-
Q6: In a balanced AM modulator there is
A)only
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Q8: In a linear multiplier, the constant K
Q9: In an AM receiver, the input signal
Q10: Before a phase- locked loop (PLL)is locked
Q11: In general, the capture range of a
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