Analog digital conversion 1 data converter history 2 fundamentals of sampled data systems 21 coding and quantizing 22 sampling theory 23 data converter ac errors 24 general data converter specifications 25 defining the specifications 3 data converter architectures 4 data converter process technology 5 testing data converters 6. The analog signal is continuous in time and it is necessary to convert this to a flow of digital values it is therefore required to define the rate at which new digital values are sampled from the analog signal the rate of new values is called the sampling rate or sampling frequency of the converter a continuously varying bandlimited signal can be sampled that is the signal values at . Digitizes an analog signal sampling an analog signal is said to be sampled to produce the digital signal quantization to subdivide into small but measurable increments digital signals are limited by the number of binary digits bits that can be used to represent them analog to digital conversion process adc analog signal digital . Why another book on sampling theory and analog to digital conversion this book takes a linear system theory approach to analog to digital conversion from linear systems theory we introduce sampling theory and use the tools from linear system theory to prove shannons sampling theorem. Audio sampling digital audio uses pulse code modulation and digital signals for sound reproduction this includes analog to digital conversion adc digital to analog conversion dac storage and transmission in effect the system commonly referred to as digital is in fact a discrete time discrete level analog of a previous electrical analog
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