Transcription of Lesson 20: Analog to Digital Conversion
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Lesson 20: Analog to Digital Conversion Objectives: (a) Describe the advantages of Digital over Analog communication. (b) Discuss the basic steps of the Analog -to- Digital Conversion process: sampling, and quantizing/encoding. (c) Given an Analog waveform, sampling rate, and resolution, determine the resulting quantized signal and the binary encoded A/D output. (d) Calculate the Nyquist sampling rate for an Analog signal. (e) Given the number of bits in an A/D process, and sample frequency, determine the generated bit rate.
D) conversion. The device used to perform this translation is known as an analog-to-digital converter or ADC. Through A/D conversion, analog signals are changed into a sequence of binary numbers (encoded bits), from which the digital signal is created by the transmitter. This process is depicted below.
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