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Tipo: Esquemas y mapas conceptuales
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Students Jose Antonio Lopez Avila Jenifer Rodriguez Olivares
An analog-to-digital converter (ADC) is an electronic device capable of converting an analog voltage input into a binary value. It is used in electronic equipment such as computers, sound and video recorders. , and telecommunications equipment. The analog signal, which varies continuously in time, is connected to the input of the device and is sampled at a fixed rate. Digitization basically consists of periodically taking measurements of the amplitude (voltage) of a signal, rounding its values to a finite set of pre-established voltage levels (known as quantization levels) and recording them as integers in any type of memory or medium. The processes that give rise to this conversion are sampling, retention, quantification and coding: Sampling: Sampling consists of taking periodic samples of the wave amplitude. The speed at which this sample is taken, that is, the number of samples per second, is what is known as the sampling frequency. The Swedish engineer Harry Nyquist formulated the following theorem to obtain a quality digital recording. “The sampling frequency Minimum sampling required to make a quality digital recording, must be equal to twice the audio frequency of the analog signal that is intended to be digitized and recorded. ("Nyquist Condition"). If we do not meet this requirement, the aliasing phenomenon will appear. which will lead to the appearance of "alias" frequencies, and the original signal cannot be reconstructed unequivocally from the digital signal.
An analog-to-digital signal converter (CAD; Analog-to-Digital Converter, ADC) is an electronic device capable of converting an analog signal, whether voltage or current, into a digital signal using a quantizer. and being codified in many cases in a code This practice helped us visualize the function of the potentiometer, which is something that we had never seen before but that in the future will be useful for something productive.