Digital Electronics

University of KwaZulu-Natal (UKZN)

Here are the best resources to pass Digital Electronics. Find Digital Electronics study guides, notes, assignments, and much more.

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Electronic Measurement Systems
  • Electronic Measurement Systems

  • Class notes • 13 pages • 2023
  • Available in package deal
  • Understand basic measurement principles Look at a typical instrumentation system Usually some amplification of the sensor signal is needed
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References for Digital & Analog Conversion,Real World DACs,Matching Resolution & ExampleS
  • References for Digital & Analog Conversion,Real World DACs,Matching Resolution & ExampleS

  • Class notes • 7 pages • 2023
  • Available in package deal
  • Wakerly doesn’t cover this section For the notes we used Rizzoni, (Principles and Applications of Electrical Engineering, Giorgio Rizzoni, 3rd, revised 4th or 5th edition) and Tocci/Widmer (Digital Systems – Principles & Applications, Ronald J Tocci & Neal S Widmer, 8th edition). Copies of Rizzoni are available in the library. The DAC circuit based on the inverting summer provided a useful hypothetical basis for discussion, but is not a practical circuit. Why? An 8-bit DAC has a...
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Note on Tri-state Devices & Digital to Analog Conversion
  • Note on Tri-state Devices & Digital to Analog Conversion

  • Class notes • 11 pages • 2023
  • Available in package deal
  • We talked about the two binary states. We also talked about enabling outputs. Effectively this gives a third state called the off or high impedance state. We refer to this as tri-state logic Digital to analog conversion is the process of taking a value in digital code format (straight binary, BCD, etc.) and converting it into a voltage or current that is proportional to the digital value
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Note on Tri-state Devices
  • Note on Tri-state Devices

  • Class notes • 13 pages • 2023
  • Available in package deal
  • We talked about the two binary states. We also talked about enabling outputs. Effectively this gives a third state called the off or high impedance state. We refer to this as tri-state logic Example: A 5-bit DAC has a current output such that a digital input of produces an output of 10 mA. What will Iout be for a digital input of 11101? Solution: Iout = 10 mA for an input of 2010 ⇒ K = 0.5 mA I’out = 0.5mA x 2910 = 14.5 mA
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Setup and Holds times
Registers
  • Registers

  • Class notes • 27 pages • 2023
  • Available in package deal
  • A register is collection of binary storage cells capable of holding binary information. Since flip-flops are memory elements capable of storing binary information, so a group of flip-flops working together constitute a register. To form an n-bit register, n flip-flops are required. Registers comprise of flip-flops and may contain combinational circuits.
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Real World Design
  • Real World Design

  • Class notes • 9 pages • 2023
  • Available in package deal
  • For more complex combinational problems with a larger number of inputs, one can resort to the use of a minimization algorithm, such as Quine-McCluskey. In practice however most designs are implemented using programmable Ics.
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Karnaugh Maps
  • Karnaugh Maps

  • Class notes • 12 pages • 2023
  • Available in package deal
  • A prime implicant of a logic function is a normal product term that cannot be reduced further, obtained from the circled 1s. A minimal sum is a sum of prime implicants.
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Counters
  • Counters

  • Class notes • 26 pages • 2023
  • Available in package deal
  • Counters are circuits or networks which count pulses. It is important to define a few terms used in describing various circuits or networks. A sequential circuit is said to be a Moore machine or Moore network if its output is a direct function of its present state only and not of its input.
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