Electronic Devices and Circuit Theory-Linear-Digital ICs Questions and Answers

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Q11
The voltage-controlled oscillator is a subset of the "test bench" function generator.
  • A True
  • B False
Answer: Option A
Q12
Which of the following applications include a phase-locked loop (PLL) circuit?
  • A Modems
  • B Am decoders
  • C Tracking filters
  • D All of the above
Answer: Option D
Q13
What is the function of a ladder network?
  • A Changing an analog signal to a digital signal
  • B Changing a linear signal to a digital signal
  • C Changing a digital signal to an analog signal
  • D None of the above
Answer: Option C
Q14
Which of the slope intervals of the integrator does the counter in the analog-to-digital converter (ADC) operate?
  • A Positive
  • B Negative
  • C Both positive and negative
  • D Neither positive nor negative
Answer: Option C
Q15
A 311 IC is an example of an eight-pin DIP that can be made to function as a ________.
  • A comparator
  • B 555 timer
  • C D to A converter
  • D ladder network
Answer: Option A
Q16
What is (are) the level(s) of the input voltage to a ladder-network conversion?
  • A 0
  • B Vref
  • C 0 V or Vref
  • D None of the above
Answer: Option C
Q17
At which of the following period(s) is the counter advanced (incremented) in dual-slope conversion?
  • A During the charging of the capacitor of the integrator
  • B During the discharging of the capacitor of the integrator
  • C During both the charging and discharging of the capacitor of the integrator
  • D None of the above
Answer: Option B
Q18
How many Vcc connections does the 565 PLL use?
  • A 0
  • B 1
  • C 2
  • D 3
Answer: Option C
Q19
How many comparators does a 339 IC contain?
  • A 4
  • B 3
  • C 2
  • D 1
Answer: Option A
Q20
When is the counter set to zero in the dual-slope method of conversion?
  • A Prior to the charging of the capacitor of the integrator
  • B While the capacitor is being charged
  • C At the end of the charging of the capacitor
  • D During the discharging of the capacitor
Answer: Option C

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