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- Question
In a digital representation of voltages using an 8-bit binary code, how many values can be defined?
Options- A. 16
- B. 64
- C. 128
- D. 256
- Correct Answer
- 256
- 1. For a 4-bit DAC, the least significant bit (LSB) is ________.
Options- A. 6.25% of full scale
- B. 0.625% of full scale
- C. 12% of full scale
- D. 1.2% of full scale Discuss
- 2. Which is a typical application of digital signal processing?
Options- A. Noise elimination
- B. Music signal processing
- C. Image processing
- D. All of the above Discuss
- 3. Which is not an A/D conversion error?
Options- A. Differential nonlinearity
- B. Missing code
- C. Incorrect code
- D. Offset Discuss
- 4. Which type of programming is typically used for digital signal processors?
Options- A. Assembly language
- B. Machine language
- C. C
- D. None of the above Discuss
- 5. How are unwanted frequencies removed prior to digital conversion?
Options- A. Pre-filters
- B. Digital signal processing
- C. Sample-and-hold circuits
- D. All of the above Discuss
- 6. A binary-weighted-input digital-to-analog converter has an input resistor of 100 kΩ. If the resistor is connected to a 5 V source, current through the resistor is ________.
Options- A. 50 mA
- B. 50 µA
- C. 5 mA
- D. 500 µA Discuss
- 7. 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" Discuss
- 8. 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 Discuss
- 9. 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 Discuss
- 10. 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 Discuss
Digital Signal Processing problems
Search Results
Correct Answer: 6.25% of full scale
Correct Answer: All of the above
Correct Answer: Differential nonlinearity
Correct Answer: Assembly language
Correct Answer: Pre-filters
Correct Answer: 50 µA
Correct Answer: Holding
Correct Answer: More bit requirements and more accurate signal representation
Correct Answer: Successive-approximation analog-to-digital converter
Correct Answer: Sigma-delta
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