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- Question
What is a digital-to-analog converter?
Options- A. It takes the digital information from an audio CD and converts it to a usable form.
- B. It allows the use of cheaper analog techniques, which are always simpler.
- C. It stores digital data on a hard drive.
- D. It converts direct current to alternating current.
- Correct Answer
- It takes the digital information from an audio CD and converts it to a usable form.
ExplanationA DAC converts an abstract finite-precision number (usually a fixed-point binary number) into a concrete physical quantity (e.g., a voltage or a pressure). - 1. Any number with an exponent of one is equal to:
Options- A. zero.
- B. one.
- C. two.
- D. that number. Discuss
- 2. The frequency of a pulse train is 2 kHz. The pulse period is ________.
Options- A. 5 ms
- B. 50 ms
- C. 500 µs
- D. 2 µs Discuss
- 3. The rise time is the time it takes a pulse to go from ________.
Options- A. the base line to the maximum HIGH voltage
- B. 10% of the pulse amplitude to the maximum HIGH voltage
- C. the base line to 90% of the pulse amplitude
- D. 10% of the pulse amplitude to 90% of the pulse amplitude Discuss
- 4. What is the decimal value of 2?1 ?
Options- A. 0.5
- B. 0.25
- C. 0.05
- D. 0.1 Discuss
- 5. The range of voltages between VL(max) and VH(min) are ________.
Options- A. unknown
- B. unnecessary
- C. unacceptable
- D. between 2 V and 5 V Discuss
Digital Concepts problems
Search Results
Correct Answer: that number.
Correct Answer: 500 µs
Correct Answer: 10% of the pulse amplitude to 90% of the pulse amplitude
Correct Answer: 0.5
Correct Answer: unacceptable
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