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Digital Signal Processing
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Question
A 4-bit R/2R ladder digital-to-analog converter uses ________.
Options
A. one resistor value
B. two resistor values
C. three resistor values
D. four resistor values
Correct Answer
two resistor values
Digital Signal Processing problems
Search Results
1. The ADC0804 is an example of a ________.
Options
A. single-slope analog-to-digital converter
B. dual-slope analog-to-digital converter
C. digital-ramp analog-to-digital converter
D. successive-approximation analog-to-digital converter
Show Answer
Scratch Pad
Discuss
Correct Answer: successive-approximation analog-to-digital converter
2. Which type of ADC quantizes the analog signal into a stream of bits whose amount corresponds to the signal level?
Options
A. Successive approximation
B. Sigma-delta
C. Dual-slope
D. None of the above
Show Answer
Scratch Pad
Discuss
Correct Answer: Sigma-delta
3. Which A/D conversion method has a fixed conversion time?
Options
A. Single-slope analog-to-digital converter
B. Dual-slope analog-to-digital converter
C. Digital-ramp analog-to-digital converter
D. Successive-approximation analog-to-digital converter
Show Answer
Scratch Pad
Discuss
Correct Answer: Successive-approximation analog-to-digital converter
4. What is the result of taking more samples during the quantization process?
Options
A. More errors in the analog-to-digital conversion
B. More bit requirements
C. More accurate signal representation
D. More bit requirements and more accurate signal representation
Show Answer
Scratch Pad
Discuss
Correct Answer: More bit requirements and more accurate signal representation
5. Which term applies to the maintaining of a given signal level until the next sampling?
Options
A. Holding
B. Aliasing
C. Shannon frequency sampling
D. "Stair-stepping"
Show Answer
Scratch Pad
Discuss
Correct Answer: Holding
6. What do we call the manipulation of an analog signal in a digital domain?
Options
A. Analog-to-digital conversion
B. Digital-to-analog conversion
C. Digital signal processing
D. Signal filtering
Show Answer
Scratch Pad
Discuss
Correct Answer: Digital-to-analog conversion
7. The dual-slope analog-to-digital converter finds extensive use in ________.
Options
A. digital voltmeters
B. function generators
C. frequency counters
D. all of the above
Show Answer
Scratch Pad
Discuss
Correct Answer: all of the above
8. In troubleshooting a DAC, we check its performance characteristics, such as ________.
Options
A. nonmonotonicity
B. differential nonlinearity
C. low and high gain
D. all of the above
Show Answer
Scratch Pad
Discuss
Correct Answer: all of the above
9. How many buses are connected as part of the 8085A microprocessor?
Options
A. 2
B. 3
C. 5
D. 8
Show Answer
Scratch Pad
Discuss
Correct Answer: 3
10. The ________ ensures that only one IC is active at a time to avoid a bus conflict caused by two ICs writing different data to the same bus.
Options
A. control bus
B. control instructions
C. address decoder
D. CPU
Show Answer
Scratch Pad
Discuss
Correct Answer: address decoder
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