Introduction and Basic Concepts-Basic Electronics and Transistor-Lecture Slides, Slides of Electronics

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EE216 Electronics -

EE216 Fall 2011

EE-216 ELECTRONICS -I^ EE216 Fall 2011

Course Instructor:^

Asst Professor Saleem Iftekhar

Contact Information:^ Office:^

A

Email address:^

[email protected]

Class Schedule:^ Section A:^

MON, THR, FRI 9:00–10:00 AMSection B: MON, TUE 2:00–3:00 FRI: 12:00 – 1:00 PM

Welcome to applications of circuit analysis into the world ofElectronics EE216 Fall 2011

Let us learn form questioning each other …………………………………………other wise we may use this technique …^ Punctuality ….Stick to deadlines …..^ Start work from day one ….Consult your professor to remove doubts …Importance of text Book and notes ……LMS will be used to upload slides, notes, relevantmaterial

Lecture

EE216 Fall 2011

EE216 Electronics -

C H A P T E R^01 EE216 Fall 2011 Signals and Amplifiers

EE216 Fall 2011^

Cellular Technology • An important example of microelectronics. • Microelectronics exist in black boxes that process thereceived and transmitted voice signals.

EE216 Fall 2011^

Frequency Up-conversion • Voice is “up-converted” by multiplying two sinusoids. • When multiplying two sinusoids in time domain, theirspectra are convolved in frequency domain.

EE216 Fall 2011^

Transmitter • Two frequencies are multiplied and radiated by anantenna in (a). • A power amplifier is added in (b) to boost thesignal.

EE216 Fall 2011^

Receiver

-^ High frequency is translated to DC by multiplying by f

.C

-^ A low-noise amplifier is needed for signal boostingwithout excessive noise.