WorksheetsIntroduction to Digital Electronics
Total questions: 12
Worksheet time: 7mins
Temperature in nature represents a/an ____ signal.
digital
analog
interruptible
discrete
Which of the following is not a characteristics of an analog signal?
Have a continuous values
Signal in nature is analog
Analog signal can be processed directly by a microprocessor
Within a period of time, there is an infinite number of analog values
Which of the following is not a characteristic of a digital signal?
Has discrete values
Usually represented by digital binary
The signal is represented by symbols/digits
At any time instance, we can retrieve a digital value equivalent to analog signal
Select all advantages of digital signals.
Easy to store
Easy to design
Greater accuracy and precision
Less affected by noise
A periodic pulse waveform is one that repeats itself at a fixed interval, called a ______.
period
frequency
duty cycle
pulse width
A microprocessor clock is an example of a ______ signal.
periodic
non-periodic
non-square wave
random
The period for the shown signal is _____ ms.
60
15
45
30
The frequency for the shown signal is _____ Hz.
30.5
22.2
82.5
90.1
The duty cycle for the shown signal is _____ %.
30.0
54.2
33.3
45.5
______ is a graph of digital waveforms showing the actual time relationship of two or more waveforms and how each waveform changes in relation to the others.
Timing diagram
Periodic signal
Truth table
Data transfer
Serial data transfer is faster than parallel data transfer.
True
False
The 4 MHz clock is used as reference. Determine the the total time (in micro seconds, us) required to serially transfer the eight bits contained in waveform A.
2 us
3 us
4 us
5 us
