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Grading SummaryThese 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:6/3/2016Time Spent:07 min , 28 secsPoints Received:45 / 50 (90%)Question Type:# Of Questions:# Correct:True/False21Multiple Choice44Grade Details - All QuestionsQuestion 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 10Comments: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 10Comments: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 10Comments: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 10Comments: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 5Comments: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 5Comments: