Maharshi Dayanand University Rohtak | 4th
Digital Electronics - 2
Browse DE2 4th question papers for exam preparation and revision.
📚 Syllabus - DE2 (Diploma Electronics and Communication Engineering 4th)
1. Logic Families
a) Logic family classification. TTL, ECL, MOS, CMOS. Types of integration
SSI,MSI, LSI, VLSI
b) Characteristics of TTL and CMOS and the comparison. Propagation delay.
Speed, noise margin. Logic levels., power dissipation, fan-in, fan-out,
power supply requirements
c) Open collector and totem pole output circuits, operation of a standard TTL,
CMOS, NAND, NOR gates
d) CMOS to TTL interfacing and TTL to CMOS interfacing
e) Introduction to tri-state devices, tri-state buffer and inverter circuits.
(08 hrs)
2. A/D and D/A Converters
a) D/A Converters : Performance characteristics of D/A converters, binary
resister network and resistance ladder network methods of D/A converters
and applications
b) A/D Converters : Performance characteristics of A/D converters, single
slope, dual slope, successive approximation and parallel A/D converters
(08 hrs)
3. Memories
Memory organisation, classification of semi conductor memories, ROM, PROM,
DROM, EPROM, EEPROM, RAM, expansion of memory. CCD memories,
content addressable memory, programmable logic devices, PROM at PLD,
programmable logic array (PLA) programmable array logic (PAL), field
programmable gate array (FPGA), familiarization with common ICs.
(12 hrs)
4. Combinational Circuits
Minimization of Boolean expressions using Quine Mcclaaskey method
(04 hrs)
5. Sequential Circuits
Essential components of sequential circuit, synchronous and asynchronous
sequential circuits, classification of sequential circuits (Meely and Moore
Machine), design of counters using J-K and R-S flip-flops.
(08 hrs)
6. Arithmetic and Logic Unit
Basic idea about arithmetic logic unit w.r.t. IC 74181 and applications,
implementation of binary multiplication, division, subtraction and addition
(04 hrs)
7. Introduction to Fuzzy logic
Fuzzy sets and classical sets and their operations, Fuzzy relations, Properties of
membership functions, Fuzzification, Defuzzfication, Fuzzy control system
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About This Question Paper Collection
Browse DE2 4th question papers for Diploma Electronics and Communication Engineering students at Maharshi Dayanand University Rohtak. This page helps students review question patterns, prepare for exams, and understand how previous papers are structured.
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Treat them as a supplement, not a replacement, for the latest syllabus and official notices, and use them to build confidence before the actual exam.
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