II Year B.E - CSE

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Electronic Circuits & Communication
- Applications
An Interactive Session
Sudhir Warier

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Coverage
 Corporate Gyan
 Semiconductors – Evolution
 FED Applications
 PLL Applications
 Op-Amp Applications
 Telecom Fundamentals & Applications
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Corporate Gyan
Key Differentiators

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Points to Ponder….
 “Learning” as opposed to “Teaching”
 Introspect
 Master the Basics
 Get the “Birds eye” View
 Understand the concept and then the mathematical treatise
 Stay abreast of technology evolution
 Understand technology assimilation
 Industrial Context
© Focal Technology Consulting. All rights reserved.
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Construct Towering Edifice
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Semiconductors – The Growth Story!
 LSI  VLSI  Nano Technology
 Plasma Etching Technologies
 Reactive Ion Etching (RIE)
 Isotropic Etching
 Telecom Connectors
 FC  SFP  SFP+  XFP  XFP+
 Lasers
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Field Effect Devices – Applications
 FET based Bio-Sensor
 Electro-Wetting on Dielectrics (EWOD)
 Binding of Antigen & Antibodies
 Carbon Nanotube FET (CNFET)
 Single carbon nanotube as channel material
 Microwave FET
 Linear Integrated FET (LFET)
 THz Plasmonic Devices – Photo-optical Instrumentation
 Organic FET
 dinaphtho[2,3-b:2',3'-f]thieno[3,2-b]thiophene
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PLL - Applications
 Frequency Synthesis – Tuneable Local Oscillators for Radio Tx & Rx
 Carrier Phase & Frequency Tracking
 Symbol (Bit) Synchronization
 Chip Synchronization – GPS Receivers
 Clock Recovery
 DSP
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Network Time Synchronization
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Atomic Second
Time taken for a Caesium to oscillate
9,192,631,770 times
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Network Accuracy
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Op-Amp Critical Applications
 Key building block of Analog IC – High LF Voltage Gain
 Countless Applications
 Differentiator
 Integrator
 Summing Amplifier
 Filters – LP, HP, BP
 Electrocardiogram (EKG) Amplification
 Strain Gauge
 Transducers
 Temperature Control
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Pulse Code Modulation
 Three Stages
 Sampling (2*4Khz  8 Khz or 8000 samples/sec)
 Quantization (256 Levels)
 Encoding/Decoding (8 bits/sample)
 Channel BW = No. of Samples/Sec * No. of Bits/Sample = 8000 samples/sec * 8 bits/sample
 64000 bps or 64 Kbps
 Ts = 1/8000 = 125μs
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Simulations
Making Sense of Abstract Concepts

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Simulators
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Enhance your Knowledge!
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Simulators
 Op-Amp Simulators
 http://www.indiabix.com/electronics-circuits/op-amp/
 https://www.circuitlab.com/circuit/me84mf/op-amp-non-inverting-amplifier/
 http://www.falstad.com/circuit/e-opamp.html
 PLL Simulators’
 Simulink - http://www.mathworks.in/products/simulink/
 MATLAB
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Thank You!
FEEDBACK & CONTACT
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eswarier@gmail.com