Explore topic-wise MCQs in Linear Integrated Circuit.

This section includes 10 Mcqs, each offering curated multiple-choice questions to sharpen your Linear Integrated Circuit knowledge and support exam preparation. Choose a topic below to get started.

1.

Voltage to frequency conversion factor for VCO is$

A. K<sub>v</sub> = ‚ñ≥V<sub>c</sub>/ ‚ñ≥f<sub>o</sub>
B. K<sub>v</sub> = ‚ñ≥f<sub>o</sub>/‚ñ≥V<sub>c</sub>
C. K<sub>v</sub> = ‚ñ≥f<sub>o</sub> √ó ‚ñ≥V<sub>c</sub>
D. K<sub>v</sub> = 1/(‚ñ≥f<sub>o</sub>√ó‚ñ≥V<sub>c</sub>)
Answer» C. K<sub>v</sub> = ‚Äö√Ñ√∂‚àö¬±‚Äö√¢‚Ä¢f<sub>o</sub> ‚Äö√†√∂‚àö‚â• ‚Äö√Ñ√∂‚àö¬±‚Äö√¢‚Ä¢V<sub>c</sub>
Discussion
2.

Choose_the_VCO_for_attaining_higher_output_frequency.$

A. NE566
B. SE566
C. MC4024
D. All of the mentioned
Answer» D. All of the mentioned
Discussion
3.

Find the equation for change in frequency of VCO?

A. ‚ñ≥f<sub>o</sub> = (2√ó‚ñ≥V<sub>c</sub>)/(R<sub>T</sub>√óC<sub>T</sub>√óV<sub>cc</sub>)
B. ‚ñ≥f<sub>o</sub> = ‚ñ≥V<sub>c</sub>/(4√óR<sub>T</sub>√óC<sub>T</sub>√óV<sub>cc</sub>)
C. ‚ñ≥f<sub>o</sub> = ‚ñ≥V<sub>c</sub>/(2√óR<sub>T</sub>√óC<sub>T</sub>√óV<sub>cc</sub>)
D. ‚ñ≥f<sub>o</sub> = (4√ó‚ñ≥V<sub>c</sub>)/(R<sub>T</sub>√óC<sub>T</sub>√óV<sub>cc</sub>)
Answer» B. ‚Äö√Ñ√∂‚àö¬±‚Äö√¢‚Ä¢f<sub>o</sub> = ‚Äö√Ñ√∂‚àö¬±‚Äö√¢‚Ä¢V<sub>c</sub>/(4‚Äö√†√∂‚àö‚â•R<sub>T</sub>‚Äö√†√∂‚àö‚â•C<sub>T</sub>‚Äö√†√∂‚àö‚â•V<sub>cc</sub>)
Discussion
4.

Calculate_the_voltage_to_frequency_conversion_factor,_where_fo=155Hz_and_Vcc=10V.

A. 130
B. 124
C. 134
D. 116
Answer» C. 134
Discussion
5.

What is the advantage of using filter?

A. High noise immunity
B. Reduce the bandwidth of PLL
C. Provides dynamic range of frequencies
D. None of the mentioned
Answer» B. Reduce the bandwidth of PLL
Discussion
6.

Calculate the value of external timing capacitor, if no modulating input signal is applied to VCO. Consider fo=25 kHz and RT=5 kΩ.$

A. 6nF
B. 100µF
C. 2nF
D. 10nF
Answer» D. 10nF
Discussion
7.

The output frequency of the VCO can be changed by changing

A. External tuning resistor
B. External tuning capacitor
C. Modulating input voltage
D. All of the mentioned
Answer» E.
Discussion
8.

Determine the value of current flow in VCO, when the NE566 VCO external timing resistor RT =250Ω and the modulating input voltage Vc=3.25V.(Assume Vcc=+5v).$

A. 3mA
B. 12mA
C. 7mA
D. 10mA
Answer» D. 10mA
Discussion
9.

Write the equation for time period of VCO?

A. (2√óV<sub>cc</sub>√óC<sub>T</sub>)/i
B. (V<sub>cc</sub> C<sub>T</sub>)/(2√ói)
C. (V<sub>cc</sub>√óC<sub>T</sub>√ói)/2
D. (2√óV<sub>cc</sub>)/(i√óC<sub>T</sub>)
Answer» C. (V<sub>cc</sub>‚Äö√†√∂‚àö‚â•C<sub>T</sub>‚Äö√†√∂‚àö‚â•i)/2
Discussion
10.

Which device is used for diagnostic purposes and for recording?

A. Low pass filter
B. Monolithic PLL
C. Voltage Controlled Oscillator
D. None of the mentioned
Answer» D. None of the mentioned
Discussion