lec09_28_10 - Electronic Gadgets and Devices ECE 422/522...

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CE 422/522 ECE 422/522 Fall 2010 Electronic Gadgets and Devices Analog CMOS Integrated Circuits Why analog circuits in the digital VLSI era? Digitized music on a Compact Disc (CD) Analog signal Analog ignal From: Prof. Mark Fowler signal Why Analog Circuits in the Digital VLSI Era? hysical world is analog in nature Physical world is analog in nature – Audio signal, video signal igital systems cannot operate in a vacuum Digital systems cannot operate in a vacuum Analog/Digital ransmission interface electronics VLSI igital Imagers/Displays Transmission media: Wired, wireless Digital System Actuators/Sensors Storage media: disk, tape Audio I/O
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ensing/Actuation Example Sensing/Actuation Example A/D Sensor processor LSI digital D/A Actuator VLSI digital system Automobile air bag – Sense acceleration – Deploy airbag if acceleration exceeds a threshold ny Sensing and Control Application Any Sensing and Control Application Analog sensor (continuous time information) Digitize analog information using an Analog to Digital Converter (ADC) Process signal in digital domain using a processor (DSP)
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This note was uploaded on 01/18/2011 for the course ALS 161 taught by Professor Sfuiaf during the Spring '10 term at American InterContinental University Los Angeles.

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lec09_28_10 - Electronic Gadgets and Devices ECE 422/522...

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