AP ECET 2020 is a Common Entrance Test for Diploma Holders and for B.Sc.(with Mathematics as one of the optional subjects) to get admission into B.Tech & Pharmacy. APECET 2020 will be conducted by JNTUA on behalf of the Andhra Pradesh State Council of Higher Education for the academic year 2020-2021
The submission of online applications for ECET Andhra Pradesh started on February 2020
AP ECET 2020 Syllabus for Diploma Holders in Engineering, Diploma Holders in Pharmacy and B.Sc.(Mathematics) Graduates.
AP ECET 2020 Exam will be on 30th April 2020 (Thursday)
AP ECET 2020 Syllabus For Electronics & Communication Engineering
AP ECET 2020 Syllabus in diploma holders in engineering, diploma holders in pharmacy, B.Sc.(Mathematics) graduates, Common Subjects given in detail.
Electronics & Communication Engineering Syllabus is for Diploma Holders
- ELECTRONIC DEVICES AND CIRCUITS: Semiconductor diodes – varactor diode – zener diode – Clippers and clampers-Transistors– FETs – UJT (characteristics only) – Power supplies – Rectifiers and Filters – HW, FW and Bridge type – RC , LC and CLC filters – Series and Shunt regulators – Transistor amplifiers – CE,CC and CB configurations – Biasing techniques-RC coupled – Transformer coupled amplifiers Differential amplifiers – Feedback, Power and Tuned amplifiers – Operational amplifiers – characteristics and applications – RC , LC and Crystal oscillators – Astable , Bistable and Monostable Multivibrators using Transistors and 555 timers- Schmitt Trigger – Sweep circuits – Miller and Bootstrap circuits.
- CIRCUIT THEORY: Mesh current and Node voltage analysis – Crammer’s Rule – Network theorems – Thevenin’s, Norton’s, Maximum Power transfer, Superposition and Reciprocity theorems– Series and Parallel Resonance – Q- factor – Selectivity – Bandwidth – Linear wave shaping circuits. Transmission Lines – Characteristic Impedance –Reflection Coefficient – SWR – Transmission Line losses and Impedance matching.
- ELECTRONIC MEASURING INSTRUMENTS: Analog Instruments – Extension of range of Ammeter, Voltmeter and Ohmmeter – FET voltmeter – Differential voltmeter – Digital instruments – Ramp –Dual Slope integration – successive approximation – digital frequency meter-digital LCR meter- CRO – CRT – time base generator – deflection sensitivity – triggered sweep circuits – CRO applications, AF Oscillator – RF Signal generator – AF and RF Power meters – Q meter – Distortion Factor Meter – Digital IC tester
- INDUSTRIAL AND POWER ELECTRONICS: Thyristor family – SCR ,TRIAC, Power BJT –IGBT (characteristics, working principle and applications) – Converters – Single phase HW , FW fully controlled – Choppers – modes of operation – Inverters and Cycloconverters – Series and Parallel Inverters– PWM inverters, Sinusoidal three phase inverters – Single phase center tapped cycloconverters – Speed control of AC / DC motors using converters and choppers. – SMPS – Off Line and On Line UPS – Opto electronic devices – LDR, Photo diode and transistor and Photo voltaic cell (characteristics and applications) – Transducers – LVDT – Strain Gauge, Thermistor, Thermocouple – Ultrasonics – Pulse echo flaw detector.
- COMMUNICATION SYSTEMS: Analog – Need for modulation – Types of modulation – AM , FM , PM – Modulation Index – Bandwidth – Power requirements – Transmitters – Low level , High level and SSB types – Receivers – Super heterodyne – AM and FM receivers – characteristics – Sensitivity , Selectivity , Fidelity – IMRR and choice of IF – Wave Propagation – Ground , Sky and Space waves – Properties. Digital – Pulse modulation – PCM , Delta modulation – Data codes – Synchronous and Asynchronous transmission – error detection and correction – digital modulation – ASK ,FSK, PSK and QAM – generation and detection – Multiplexing – TDM , FDM – Multiple Access – TDMA.
- ADVANCED COMMUNICATION SYSTEMS: Antennas– radiation resistance – beam width – polarization – directivity – efficiency – bandwidth – gain – front to back ratio – folded dipole – arrays – broadside – end fire – Yagi , Log periodic , Turnstile antennas – Parabolic reflectors – beam width, gain and applications. Wave Guides – Rectangular – Dominant mode – Phase and Group velocity – Cut off wavelength – working principle and applications of Magnetron , Klystron ,TWT – Radar – range equation – Pulsed radars – indicators – duplexers – CW radars and MTI radars – Satellite communication – UP link and DOWN link frequencies – types of satellites – satellite on board – earth station systems – satellite applications – Fiber Optic communication – types of fibers – couplers, splices, connectors, switches , optical emitters and detectors – optical repeaters – Wave length Division multiplexing – Mobile Communication – cellular concept – AMPS , GSM , CDMA systems.
- DIGITAL ELECTRONICS: Number systems – Logic gates – Boolean algebra – Adders and Subtractors – Flip-flops – Registers and Counters – Memories – RAM, ROM, Flash ROM, NVROM – D/A converters – binary weighted – R-2R Ladder, A /D Converter – Counter and Successive approximation types.
- MICROCONTROLLERS AND MICROPROCESSORS: 8051 Architecture – Instruction Set – subroutines – use of input and output machine related statements – time delay programme – assembler directives – peripheral ICs – 8251, 8255, and 8257– 8086 Architecture – Instruction Set – Features of Pentium and its Derivatives.
- AUDIO VIDEO SYSTEMS: Recording and Reproduction of Sound using Magnetic and Optical methods – Television Picture elements – scanning and synchronization – blanking and interlacing – composite video signal , flicker – camera tubes – Image Orthicon – Silicon Diode array – TV receivers – Tuner, IF , Sync separator , deflection circuits , EHT and sound circuits – Color TV – Additive and subtractive mixing – Color Picture tubes – degaussing – types of color TV systems – NTSC , PAL and SECAM – PAL system processing – DTH system.
- DATA COMMUNICATIONS AND COMPUTER NETWORKS: Transmission Media – twisted pair – UTP –STP –Coaxial cable – Optical fibre – comparison – Shannon Capacity theorem – Network Topologies – BUS, STAR , RING – switching – Packet and Message switching – OSI architecture and functions – CSMA , CDMA and token ring – properties and operations – Wireless LAN – Blue tooth technology – WAN architecture – Packet transmission – ARPA Net – ISP and ISDN architectures – WAN Protocols – X .25 , Frame Relay , ATM ,TCP / IP features and comparison –Ports and Sockets – Domain Name System – POP and SMTP server – File transfer protocol – Proxy server and Web server architecture.
Number of Questions to be Set Unit Wise Electronics & Communication Engineering
| Unit no | Topics | Marks |
| I | ELECTRONIC DEVICES AND CIRCUITS | 15 |
| II | CIRCUIT THEORY | 8 |
| III | ELECTRONIC MEASURING INSTRUMENTS | 10 |
| IV | INDUSTRIAL AND POWER ELECTRONICS | 10 |
| V | COMMUNICATION SYSTEMS | 15 |
| VI | ADVANCED COMMUNICATION SYSTEMS | 10 |
| VII | DIGITAL ELECTRONICS | 10 |
| VIII | MICROCONTROLLERS AND MICROPROCESSORS | 10 |
| IX | AUDIO VIDEO SYSTEMS | 5 |
| X | DATA COMMUNICATIONS AND COMPUTER NETWORKS | 7 |
| _ | Total | 100 |
MODEL QUESTIONS FOR ELECTRONICS AND COMMUNICATION ENGINEERING
The largest unsigned decimal number that can be represented in binary using 6 bits is
1. 63
2. 64
3. 127
4. 128
A 0-10mA Ammeter with 30Ω internal resistance is to be extended to measure up to 20mA . What value of Shunt resistance is to be connected?
1. 10 Ω
2. 20 Ω
3. 30 Ω
4. 60Ω
The maximum value of modulation index in amplitude modulation is
1. 10
2. 5
3. Infinite
4. 1
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