## ECE Labs

## Electronics & Communication Engineering

The focus of the B.Tech degree programme is on communications. The curriculum is so designed as to give adequate emphasis on the digital processing of information for efficient communication.

The analog and digital electronic circuits have grown enormously in complexity and functionally in this IT age. To cope up with this trend, knowledge and experience on the use of computer-aided design automation tools have become mandatory. VLSI design laboratory is equipped with FPGA CAD tools and boards from both Xilinx and Altera.

## Electronic Devices and Circuits Lab(II-I ECE & EEE)

Electrical & Electronics Lab (II-I CSE & IT)

### 1. Purpose / Objective

** **

This laboratory enables the students of II year I Sem students to gain practical experience in connecting circuits with discrete components and testing the circuits.

• This lab course is intended to know the usage of electronic equipment

• Know the testing of components

• Understand the PN diode operation in forward and reverse bias

• Know the characteristics of Half and Full wave rectifier with and without filters

• Know how to connect transistor in CB, CE configurations

### 2. Lab Hardware & Software Details

**Regulated Power Supplies, CRO, Function Generators, bread boards, Digital Multi Meters, Analog Meters**

### 3. List Of Experiments In Electronic Devices and Circuits Lab(II-I ECE & EEE) And Electrical & Electronics Lab (II-I CSE & IT):

** PART A : (Only for viva voce Examination)**

ELECTRONIC WORKSHOP PRACTICE ( in 6 lab sessions) :

1. Identification, Specifications, Testing of R, L, C Components (Colour Codes), Potentiometers, Switches (SPDT, DPDT, and DIP), Coils, Gang Condensers, Relays, Bread Boards.

2. Identification, Specifications and Testing of Active Devices, Diodes, BJTs, Low Power JFETs, MOSFETs, Power Transistors, LEDs, LCDs, Optoelectronic Devices, SCR, UJT, DIACs, TRIACs, Linear and Digital ICs.

3. Soldering practice – Simple Circuits using active and passive components.

4. Single layer and Multi layer PCBs (Identification and Utility).

5. Study and operation of • Multimeters (Analog and Digital), • Function Generator
• Regulated Power Supplies,
6. Study and Operation of CRO.

**PART B : (For Laboratory examination – Minimum of 16 experiments)**

1. PN Junction diode characteristics A. Forward bias B. Reverse bias.
2. Zener diode characteristics

3. Transistor CB characteristics (Input and Output)

4. Transistor CE characteristics (Input and Output)

5. Rectifier without filters (Full wave & Half wave)

6. Rectifier with filters (Full wave & Half wave)

7. FET characteristics

8. Measurement of h parameters of transistor in CB, CE, CC configurations

9. CE Amplifier

10. CC Amplifier (Emitter Follower).

11. FET amplifier (Common Source)

12. SCR characteristics.

13.UJT characteristics.

## Basic Simulation Lab (II-I ECE)

### 1. Purpose / Objective

•The lab intends to provide an overview of signal analysis.• This lab relies on elementary treatment and qualitative analysis of Fourier Transform, Laplace Transform and Z-Transforms

• To provide an overview of signal transmission through linear systems, convolution and correlation of signals and sampling.

### 2. Lab Hardware & Software Details

**30 High-end PC Systems with Mat lab 6.1 Software**

### 3. List Of Experiments In Basic Simulation Lab (II-I ECE) :

1. Basic Operations on Matrices.

2. Generation of Various Signals and Sequences (Periodic and Aperiodic), such as Unit impulse, unit step, square, saw tooth, triangular, sinusoidal, ramp, sine.

3. Observations on signals and sequences such as addition, multiplication, scaling , shifting, folding, computation of energy and average power.

4. Finding the even and odd parts of signal/ sequence and real and imaginary parts of signal.

5. Convolution between signals and sequences.

6. Autocorrelation and cross correlation between signals and sequences.

7. Verification of linearity and time invariance properties of a given continuous/discrete system.

8. Computation of unit sample, unit step and sinusoidal responses of the given LTI system and verifying its physical realizability and stability properties.

9. Gibbs phenomenon.

10. Finding the Fourier transform of a given signal and plotting its magnitude and phase spectrum.

11. Waveform synthesis using Laplace Transform.

12. Locating the zeros and poles and plotting the pole-zero maps in S plane and Z-plane for the given transfer function.

13. Generation of Gaussian noise (real and complex), computation of its mean, M.S. Value and its Skew, Kurtosis, and PSD, Probability Distribution Function.

14. Sampling theorem verification.

15. Removal of noise by autocorrelation / cross correlation.

16. Extraction of periodic signal masked by noise using correlation.

17. Verification of winer-khinchine relations.

18. Checking a random process for stationarity in wide sense.

## Pulse and Digital Circuits Lab (II-II ECE)

### 1. Purpose / Objective

• The course intends to provide an overview of the principles, operation and application of the analog building blocks like diodes, BJT, etc for performing various functions. Ability to demonstrate Linear Wave shaping of RC, RL, RLC circuits.

• Ability to design clipping, clamping, pulse generators circuit such as multi vibrators, time base generators.

• Ability to understand the switching characteristics of devices, realization of logic gates using diodes and transistors.

### 2. Lab Hardware & Software Details

**Regulated Power Supplies, CRO, Function Generators, Training Kits, Digital Multi Meters, Analog Meters, Digital Logic Boards**

### 3 .List Of Experiments In Pulse and Digital Circuits Lab (II-II ECE) :

1. Linear Wave Shaping (Integrator & Differentiator)

2. Non Linear Wave Shaping Clippers

3. Non Linear Wave Shaping Clampers

4. Transistor As A Switch

5. Study Of Logic Gates & Some Applications

6. Study Of Flip – Flops And Some Applications

7. Sampling Gates

8. Astable Multivibrator v
9. Monostable Multivibrator

10.Bistable Multivibrator

11. Schmitt Trigger

12. UJT Relaxation Oscillator

13. Bootstrap Sweep Circuit

## Electronic Circuit Analysis Lab (II-II ECE)

### 1. Purpose / Objective

• The Lab intends to provide an overview of the principles, operation and application of the analog building blocks like diodes, BJT, FET etc for performing various functions.

• This Lab relies on elementary treatment and utilative analysis and makes use of simple models and equation to illustrate the concepts involved.

• To provide an overview of amplifiers, feedback amplifiers and oscillators.

• To gain the knowledge on existing on future analog circuits.

### 2. Lab Hardware & Software Details

**Regulated Power Supplies, CRO, Function Generators, Digital Multi Meters, Analog Meters, Digital Logic Boards, Multi Sim 7 Soft Ware, System Set Up**

### 3. List Of Experiments In Electronic Circuit Analysis Lab (II-II ECE) :

**Experiments by using the SIMULATION SOFTWARE**

1. Common Emitter amplifier

2. Common Source amplifier

3. Two stage RC coupled amplifier

4. Current Shunt and Feedback amplifier

5. Cascade amplifier

6. Wien Bridge Oscillator using Transistors

7. RC Phase Shift Oscillator using Transistors

8. Class A power amplifier ( transformer less )

9. Class B complementary symmetry amplifier

10. High Frequency Common base BJT/ JFET amplifier

**Experiments by using the hardware**

11. Class A power amplifier ( with transformer load )

12. Class C amplifier

13. Single Tuned voltage amplifier

14. Harlty & Colpitt Oscillators

15. Darlington pair

16. MOS Amplifier

## lC Applications Lab (III-I ECE)

### 1. Purpose / Objective

• To acquire skills of designing and testing integrated circuits

• Analyze and design various applications of Op-Amp

• Design and construct waveform generation circuits

• Design timer and analog and digital circuits using op amps.

• To design combinational logic circuits using digital IC’

### 2. Lab Hardware & Software Details

**Regulated Power Supplies, CRO, Function Generators, Digital Training Kits, IC Testers, Digital Multi Meters, Analog Meters**

### 3. List Of Experiments In lC Applications Lab (III-I ECE):

**PART A **

1. OPAMP Application---

a) Adder, b) sub tractor, C) comparator circuits

2. Active Filter Applications-LPF, HPF ( first order)

3. Function generator using OP AMPS.

4. IC 555 timer-Monostable and Astable operation circuit.

5.IC 566-VCO applications.

6.Voltage Regulator Using IC 723.

7.4bit DAC using OP AMP

**PART B**

1. D Flip-Flop 7474

2. Decade Counter-7490

3. Shift Registers-74957

4. 3-8Decoder-74138

5. 4 bit Comparator-7485

6. 8*1 Multiplexer-74151 and 2*4 Demultiplexer-74155

7. Ram(16*4)-74189(Read and Write Operations)

## Analog Communications Lab (III-I ECE )

### 1. Purpose / Objective

This lab is intended to understand all types of analog modulation / demodulation principles such as AM, DSB-SC, FM recognize the importance of pre-emphasis and de-emphasis Know the need for diode detector, and AGC Substantiate pulse modulation techniques

### 2. Lab Hardware & Software Details

**: Regulated Power Supplies, CRO, Function Generators, AM Training Kits, FM Trainer Kits, SSB Trainer Kits, DSB – SC Trainer Kits**

### 3. List Of Experiments In Analog Communications Lab (III-I ECE ) :

1. Amplitude Modulation & Demodulation

2. DSB Sc modulator & detector

3. SSB-SC modulator & detector

4. Frequency Modulation & Demodulation

5. Study of spectrum analyzer analysis of AM and FM signal

6. Pre-emphasis and De- emphasis

7. Time Division multiplexing and De multiplexing

8. Frequency Division multiplexing and De multiplexing

9. Sampling Theorem – verification

10. Pulse Amplitude Modulation & Demodulation

11. Pulse width Modulation & Demodulation

12. Pulse position Modulation & Demodulation

13. Frequency Synthesizer

14. AGC characteristics

15. PLL as FM demodulator

## Micro Processors & Interfacing Lab (III-I CSE)

Micro Processors and Micro Controllers Lab(III-II ECE)

Micro Processors and Micro Controllers Lab(IV-I EEE)

### 1. Purpose / Objective

To enable the students of various branches to learn assembly language programming and interfacing.

### 2. Lab Hardware & Software Details

**:8086 Micro Processor Kits, 8051 Microcontroller kits, Traffic light module, Stepper motor and Interface Unit, Keyboard Interface, ADC & DAC modules, 8257 DMA
Unit
**

### 3. List Of Experiments In Micro Processors & Interfacing Lab (III-I CSE)

Micro Processors and Micro Controllers Lab(III-II ECE)

Micro Processors and Micro Controllers Lab(IV-I EEE)
:

1. Program For 16 Bit Arithmetic Operations For 8086

2. Program Sorting An Array For 8086

3. Program Searching An Array For Number Or Character For 8086

4. Program For String Manipulations For 8086

5.Program For Digital Clock Design Using 8086

6.Interfacing ADC And DAC 8086

7.Parallel Communications Between Two Microprocessors Kits Using 8255

8. Serial Communications Between Two Microprocessors Kits Using 8251

9. Interfacing To 8086 And Programming To Control Stepper Motor

10.Programming Using Arithmetic, Logical and Bit Manipulation Instructions Of 8051

11.Program And Verify Timer/Counter In 8051

12.Program And Verify Interrupt Handling In 8051

13.UART Operations In 8051

14. Communication Between 8051 Kit And PC

15. Interfacing LCD To 8051

16. Interfacing Matrix Keyboard To 8051

17.Data Transfer From Peripheral To Memory Through DMA Controller 8237/8257

## Digital signal Processing Lab(III-II ECE)

### 1. Purpose / Objective

• To introduce the fundamental concepts of various types Discrete time signals & sequences, To perform various operations in time domain and frequency domain on signals.

• To expose the students for understanding the various types of systems, To understand the concepts of Discrete Fourier Transforms and Fast Fourier Transforms.

• To understand the Realization of Digital Filters.

• To understand Multirate Digital Signal Processing.

• To understand architecture of TMS320C5X & operation of DSP processors.

### 2. Lab Hardware & Software Details:

**Matlab 6.1 Software, TMS320C5X DSP Processors
**

### 3. List Of Experiments In Digital signal Processing Lab(III-II ECE):

1. Generation of sinusoidal waveform

2. To find dft/idft of given dt signal

3. To find frequency response of a given system

4. Implementation of fft of given sequence

5. Determination of power spectrum

6. Implementation of lp fir filter for a given sequence

7. Implementation of hp fir filter for a given sequence

8. Implementation of lp iir filter for a given sequence

9. Implementation of hp iir filter for a given sequence

10. Generation of sinusoidal signal through filtering

11. Generation of dtmf signal

12. Implementation of decimation process

13. Implementation of interpolation process

14. Implementation of i/d sampling rate converters

## ECAD & VLSI Lab(IV-I ECE)

### 1. Purpose / Objective

To have practical experience on front-end VLSI design using VHDL/Verilog, synthesis and implementation on FPGA target device.

### 2. Lab Hardware & Software Details:

**AHDL/Xilinx Software, CPLD & FPGA kits
**

### 3. List Of Experiments In Digital signal Processing Lab(III-II ECE):

**ECAD**

1. HDL code to realize all logic gates

2. Design of 2-to-4 decoder

3. Design of 8-to-3 encoder

5 Design of 4 bit binary to gray converter

6. Design of multiplexer and demultiplexer, comparator

7. Design of full adder using three modelling styles

8. Design of flip flops (sr,jk,d)

9. Design of 4-bit binary, bcd counters

10. Finite state machine design

**VLSI**

1. Introduction to layout design and rule

2. Layout, Physical verification

3. Layout of any combinational circuit

4. Introduction of Spice simulation

5. Spice simulation of basic analog circuit

6. Analog circuit simulation

7. System level design using PLL

## Micro Wave & Digital Communications Lab(IV-I ECE)

### 1. Purpose / Objective

To perform various digital modulation/demodulation schemes. This lab also provides student to perform experiments in the area of microwave and optical communications.

### 2. Lab Hardware & Software Details:

** TDM Trainer Kits, PAM Trainer Kits, PWM Trainer Kits, PPM Trainer Kit, FSK, ASK, PSK trainer kits, PLL Trainer Kits, Digital Multi Meters, Analog Meters, Klystrons setup bench, GUNN Diode Setup bench, Regulated Power Supplies, CROs, VSWR Meters, Frequency Meters, Digital Multi Meters, Wave Guides, Direction Couplers, Bends, Attenuators, Magic Tee
**

### 3. List Of Experiments In Micro Wave & Digital Communications Lab(IV-I ECE):

**Part A**

1. Reflex Klystron Characteristics.

2. Gunn Diode Characteristics.

3. Directional Coupler Characteristics.

4. VSWR Measurement

5. Measurement of Wave guide Parameters

6. Measurement of Impedance.

7. Measurement of Scattering Parameters Of Magic Tee.

8. Measurement of Scattering Parameters Of Circulator.

9. Attenuation Measurement.

10. Microwave Frequency Measurement

**Part B**

1. Pulse Code Modulation Generation And Detection

2. Differential Pulse Code Modulation

3. Delta Modulation

4. Time Division Multiplexing

5. Frequency Shift Keying Generation And Detector

6. Phase Shift Keying Generation And Detector

7. Amplitude Shift Keying Generation And Detector

8. Study Of The Spectral Characteristics Of PAM, QAM

9.Dpsk Generation And Detector

10.Qpsk Generation And Detector

## No Ragging