Digital to Analog Converters (ADC)

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Digital Signal

A physical signal that is a representation of a sequence of discrete values.

ADC

Analog to digital converter.

Sampling

Capturing the magnitude of a signal at equal intervals.

DAC

Digital to analog converter

Quantization Error

How far off discrete value is from actual

Resolution

Number of discrete values that represent a range of analog values

Discretized/Digitized

Representing the magnitude by a number having a finite number of digits

Analog Signal

Signal which has a magnitude that can take on any value

Explain how the length of the sampling sequence affects the final frequency result? What if a shorter sampling sequence is used, what may happen to final results?

The length of the sampling sequence affects the resolution of the final frequency result. By using a shorter sampling sequence, you can get results faster, but they will not be as accurate as using a larger sequence, so the final result could be off by a large amount. Increasing the sampling sequence results in more time needed before a FFT can be done, as more data has to be collected before a calculation is done


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