ECT263 Week 5 Quiz - Grading Summary These are the automatically computed results of your exam Grades for essay questions and comments from your

ECT263 Week 5 Quiz - Grading Summary These are the...

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Grading Summary These are the automatically computed results of your exam. Grades for essay questions, and comments from your instructor, are in the "Details" section below. Date Taken: 6/3/2016 Time Spent: 07 min , 28 secs Points Received: 45 / 50 (90%) Question Type: # Of Questions: # Correct: True/False 2 1 Multiple Choice 4 4 Grade Details - All Questions Question 1.Question :(TCO 5) Referring to the PLL block diagram below, which two signals are in sync when the PLL is "locked"? Student Answer:W and XX and YY and ZW and ZInstructor Explanation:W is the input signal to the phase comparator and Z is the output of VCO. The VCO free running frequency Z is set equal to the input frequency W. Points Received: 10 of 10 Comments: Question 2.Question :(TCO 5) Referring to the block diagram of a PLL below, what is the function of block B?
Points Received: 10 of 10 Comments: Question 3.Question :(TCO 5) Which of the points on the S-curve below would correspond tothe PLL being in the locked mode? Student Answer:PQRSInstructor Explanation:The locked mode corresponds to a range of frequencies from the left of center frequency to the right, which is a linear function. Points Received: 10 of 10 Comments: Question 4.Question :(TCO 5) The PLL shown below is configured as a frequency synthesizer. Which point would be the output? Student Answer:VW
XYZInstructor Explanation:The output of VCO is the output. Points Received: 10 of 10 Comments: Question 5.Question :Phase Locked Loop (PLL) system is used to lock in the voltages of two signals. StudentAnswer:TrueFalse (frequency) Points Received: 5 of 5 Comments: Question 6.Question :Using PLL as the FM Demodulator, the recovered information signal is taken from the output of VCO block. StudentAnswer:TrueFalse (LPF) Points Received: 0 of 5 Comments:

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