UEENEEH112A Digital Sub-Systems

Digital Sub-Systems Home page – see side tabs for topics and weekly material



T1. Analogue and digital signals
Comparison between analogue and digital signals
Observing digital and analogue waveforms

T2. Numbering systems
The binary number system
The hexadecimal number system
Binary addition and subtraction

T3. Numbering systems – conversions
Conversion between numbering systems
Binary Coded Decimal (BCD)
Gray code
The American Standard Code for Information Interchange (ASCII)

T4. Combinational logic circuits
Precautions when handling electronic devices due to electrostatic discharge (ESD)
Truth tables
Basic operation and characteristics of logic gates
Logic probes
Verification of operation of logic circuits

T5. Digital displays
Seven segment LED displays
Drive requirements
Current limiting
Multiplexed displays
Seven segment Decoders
Liquid Crystal Displays (LCD)
Emerging display technologies
Verification of seven segment display circuit
Interfacing with logic circuits

T6. Digital subsystem building blocks
Encoders and Decoders
Multiplexers and Demultiplexers
Timing diagrams
Flip flops, Latches and registers
Ripple counters
MOD counters
Synchronous counters Multi-vibrators
Verification and operation (eg. PLDs, ICs)

T7. Digital fault finding
General fault finding principles
Common digital faults
Digital test equipment
Digital test equipment (eg. Logic probes, Digital Oscilloscopes, digital trainers)

T8. Logic families and specifications
Input and output voltage characteristics
Comparison of logic families
Unit load
Noise margin
Interfacing different logic families
Tri-state logic devices
Overview and applications of A/D converter and D/A converter