Sampling Theory
ADC Types
EE174 SJSU
Lecture #4
Tan Nguyen
Shannon Sampling Theorem
A continuous-time signal x(t) with frequencies no higher than
fmax can be reconstructed from its samples x[n] = x(nTs) if the
samples are taken at a proper sampling freque
Data Converter Performance
Metric
EE174 SJSU
Lecture #3
Tan Nguyen
Data Conversion
Analog-to-DigitalConverter (ADC)
The theoretical ideal transfer function for an ADC is a straight line; however,
the practical ideal transfer function is a uniform stairca
Introduction to DC-DC
Conversion
EE174 SJSU
Lecture #5
Tan Nguyen
OBJECTIVES
Introduction of DC-DC Converter
Types of DC-DC Converters
Linear regulator (LR)
Switching mode power supply (SMPS)
Advantages and Disadvantages
Introduction
Batteries are o
San Jos State University
College of Engineering/Electrical Engineering
EE174: Analog Peripheral for Embedded Systems
Section 01, Fall15
LAB1 Op-Amp
Goals
1. Understand basic principle and knowledge of Op-Amp
2. Able to build and test a simple Op-Amp circu
Energy Harvesting Transducers
EE174 SJSU
Tan Nguyen
Solar cell
A solar cell is an electrical device that converts the energy
of light directly into electricity by the photovoltaic effect.
The solar cells that you see on calculators and satellites are also
Sampling and Reconstruction of
Signal
x(t)
x~(t)
Why 44.1 kHz for Audio CDs?
Sound is audible in 20 Hz to 20 kHz range:
fmax = 20 kHz and the Nyquist rate 2 fmax = 40 kHz
What is the extra 10% of the bandwidth used?
Rolloff from passband to stopband in th
Data Converter Performance Metric
EE174 SJSU
Tan Nguyen
Analog-to-Digital Converter (ADC)
The theoretical ideal transfer function for an ADC is a straight line; however, the practical ideal transfer function is a
uniform staircase characteristic shown in
San Jos State University
College of Engineering/Electrical Engineering
EE174: Analog Peripheral for Embedded Systems
FALL 2016
LAB1 Op-Amp
Goals
Understand basic principle and knowledge of Op-Amp
Able to build and test a simple Op-Amp circuit
Software Too
Introduction to Data Conversion
EE174 SJSU
Tan Nguyen
Vocabulary
ADC (Analog-to-Digital Converter): converts an analog signal (voltage/current) to a digital value
DAC (Digital-to-Analog Converter): converts a digital value to an analog value (voltage/cu
Introduction to DC-DC
Conversion
EE174 SJSU
Tan Nguyen
OBJECTIVES
Introduction of DC-DC Converter
Types of DC-DC Converters
Linear regulator (LR)
Switching mode power supply (SMPS)
Advantages and Disadvantages
Introduction
Batteries are often shown
Overview of Energy Harvesting
EE174 SJSU
Tan Nguyen
OUTLINE
Introduction to Energy Harvesting (EH)
How does EH work?
Sources of Energy
Energy conversions
EH Components
EH system and EH Circuit
Energy storage is a Must
Application
Future Research Issues
In
Bode Plot
EE174 SJSU
Tan Nguyen
Bode Plots
Bode plots are semilog plots of the magnitude (in decibels) and phase
(in degrees) of a transfer function versus frequency.
The transfer function can be written as:
Taking the natural logarithm of both sides:
Thu
Introduction of
Touch Technologies
EE174 SJSU
Tan Nguyen
Touch Technologies
Introduction
Brief History
Market and Trends
Touchscreen Technology
Resistive
Capacitive
Surface Acoustic Wave (SAW)
Infrared LED or Optical
Touchscreen System
Applications
San Jos State University
College of Engineering/Electrical Engineering
EE174: Analog Peripheral for Embedded Systems
Section 01, Fall 2015
LAB3 DC-DC Converter
Goals
The goal of the experiment is to configure the on-board evaluation module TPS40200 on
the
Phase Lock Loop Applications
EE174 SJSU
Tan Nguyen
PLL Applications
FM Demodulation
Phase-Locked Loop Based Clock Generator
PLL perform:
Clock input division
Frequency Multiplication
In this manner, the non integer frequencies can be developed.
fIN
fOUT
Introduction to Data
Conversion
EE174 SJSU
Lecture #2
Tan Nguyen
Vocabulary
ADC (Analog-to-Digital Converter): converts an analog signal
(voltage/current) to a digital value
DAC (Digital-to-Analog Converter): converts a digital value to an
analog value
Introduction to DC-DC
Conversion Cont.
EE174 SJSU
Tan Nguyen
SWITCHING MODE POWER SUPPLY (SMPS)
The switching-mode power supply is a power supply that
provides the power supply function through low loss
components such as capacitors, inductors, and trans
Op-Amp
EE174 SJSU
Lecture #1
Tan Nguyen
Operational Amplifier
Introduction
Brief of History
Fundamentals of Op-Amps
Applications
Introduction
Operational Amplifier (Op-Amp) is an active
circuit element design to perform mathematic
operations.
Op-Amp is
San Jos State University
College of Engineering/Electrical Engineering
EE174: Analog Peripheral for Embedded Systems
Section 01, Fall 2015
LAB4 Energy Harvesting (EH)
Goals:
The goal of the experiment is to generate power from a iniature photo cell.
Under
Near Field Communication
EE174 SJSU
Tan Nguyen
OBJECTIVES
RFID
NFC
NFC Operations
NFC Applications
NFC Advantages/Disadvantages
Summary
What is RFID?
Radio-Frequency Identification (RFID) is the use of radio
waves to read and capture information st
San Jos State University
College of Engineering/Electrical Engineering
EE174: Analog Peripheral for Embedded Systems
Section 01, Fall 2015
LAB2 ADC
Goals:
To design and build a simple Analog-to-Digital (ADC) and Digital-to-Analog (DAC) converter using OpA
EE 174
Fall 2016
Operational Amplifiers
Contents
Introduction
Brief of History
Fundamentals of Op-Amps
Basic operation
Gain
Offset
Applications
Introduction
Operational Amplifier (Op-Amp) name comes from the fact that it was originally used to per