Syllabus - Digital Systems (CY304)

CSE-Cyber Security/Cyber Security

Digital Systems (CY304)

III-Semester

Unit 1

Review of number systems and number base conversions. Binary codes, Boolean algebra, Boolean functions, Logic gates. Simplification of Boolean functions, Karnaugh map methods, SOP-POS simplification, NAND-NOR implementation.

Unit 2

Combinational Logic: Half adder, Half subtractor, Full adder, Full subtractor, look-ahead carry generator,BCD adder, Series and parallel addition, Multiplexer – demultiplexer, encoder- decoder, arithmetic circuits, ALU

Sequential logic: flip flops, D,T, S-R, J-K Master- Slave, racing condition

Unit 3

Edge & Level triggered circuits, Shift registers, Asynchronous and synchronous counters, their types and state diagrams. Semiconductor memories, Introduction to digital ICs 2716, 2732 etc. & their address decoding. Modern trends in semiconductor memories such as DRAM, FLASH RAM etc. Designing with ROM and PLA.

Unit 4

Introduction to A/D & D/A convertors & their types, sample and hold circuits, Voltage to Frequency & Frequency to Voltage conversion. Multivibrators :Bistable, Monostable, Astable, Schmitt trigger, IC 555 & Its applications. TTL, PMOS, CMOS and NMOS logic. Interfacing between TTL to MOS.

Unit 5

Introduction to Digital Communication: Nyquist sampling theorem, time division multiplexing, PCM, quantization error, introduction to BPSK & BFSK modulation schemes. Shannon’s theorem for channel capacity.

Practicals

  • To study and verify the truth tables of various Logic gates

  • To verify the properties of NAND and NOR gates as Universal Building Blocks.

  • Simplification and implementation of a Boolean function

  • Implementation of basic Boolean arithmetic logic circuits such as Half-adder, Half-subtractor, Full adder and Full subtractor

  • Conversion from Binary to Gray and Gray to Binary code

  • To construct a binary multiplier using combinational logic and to verify with the truth table

  • To verify 2-bit Magnitude comparator for all possible conditions

  • Generation of various logical functions using 8-to-1 multiplexer

  • Construction of a 4-bit ripple counter and study of its operation

  • Operation of IC-555 Timer as Monostable, Astable and Bistablemultivibrators

  • To characterize binary ladder type digital to analog (D/A) and analog to digital (A/D) convertor

  • Comparison of various Logic families

  • Design and implementation of various types of flip-flops using JK flip-flop

  • To study natural sampling of continuous time waveforms using different sampling rates

  • To study Pulse-Code modulation with Time-division multiplexing (PCM-TDM)

  • To study generation and detection of BPSK and QPSK waveforms

Reference Books

  • Morris Mano, Digital Circuits & Logic Design, PHI

  • Gothman, Digital Electronics, PHI

  • Tocci, Digital Electronics, PHI

  • Mavino& Leach, Digital Principles & Applications, PHI

  • Taub and schilling, Digital Integrated electronics.

  • Simon Haykin, Introductionto Analog& Digital Communication, Wiley

  • Lathi B.P., Modern analog& digital communication , Oxford University