Circuitt diagram of gilbert-s four quadrant multiplier cell

Question

1) Describe the block diagram of PLL in detail and deduce the expression for Lock range and capture range.

2) With a neat functional diagram, describe the operation of VCO. Also deduce the expression for f_o.

3) Analyze the Gilbert’s four quadrant multiplier cell with a neat and well labelled circuit diagram. Write down its applications.

4) Explain the applications of PLL in detail.

5) With a neat and well labelled diagram, explain the working of variable transconductance multiplier.

6) Write down the broad classification of ADCs.

7) Write down the direct type ADCs.

8) Write down some integrating type converters.

9) What do you mean by integrating type converter?

10) Describe the principle of operation of successive Approximation ADC in brief.

11) Write down the major advantages of integrating type ADCs.

12) Where is the successive approximation type ADC’s used?