ch01 - When multiplying two sinusoids in time domain, their...

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1 Fundamentals of Microelectronics CH1 Why Microelectronics? CH2 Basic Physics of Semiconductors CH3 Diode Circuits CH4 Physics of Bipolar Transistors CH5 Bipolar Amplifiers CH6 Physics of MOS Transistors CH7 CMOS Amplifiers CH8 Operational Amplifier As A Black Box
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2 1.1 Electronics versus Microelectronics 1.2 Example of Electronic System: Cellular Telephone 1.3 Analog versus Digital Chapter 1 Why Microelectronics?
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CH1 Why Microelectronics? 3 Cellular Technology An important example of microelectronics. Microelectronics exist in black boxes that process the received and transmitted voice signals.
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CH1 Why Microelectronics? 4 Frequency Up-conversion Voice is “up-converted” by multiplying two sinusoids.
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Unformatted text preview: When multiplying two sinusoids in time domain, their spectra are convolved in frequency domain. CH1 Why Microelectronics? 5 Transmitter Two frequencies are multiplied and radiated by an antenna in (a). A power amplifier is added in (b) to boost the signal. CH1 Why Microelectronics? 6 Receiver High frequency is translated to DC by multiplying by f C . A low-noise amplifier is needed for signal boosting without excessive noise. CH1 Why Microelectronics? 7 Digital or Analog? X 1 (t) is operating at 100Mb/s and X 2 (t) is operating at 1Gb/s. A digital signal operating at very high frequency is very “analog”....
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ch01 - When multiplying two sinusoids in time domain, their...

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