DSP FINALS QUIZ TERMS

The term _______ is from having both analog and digital functions.

An electronic circuit that has analog input and digital output?

An electronic circuit that has Digital input and Analog output?

Its goal is to determine the digital word corresponding to an analog signal or vice versa?

This is necessary to convert the real world signals (________) into the digital form easy processing

The _____________ states that to avoid aliasing occurring in the sampling of a signal, the sampling rate should be greater than or equal to twice the highest frequency present in the signal.

_____________ is the distortion effect that occurs when sampling frequency is less than 2x input frequency.

- one of the fastest techniques, also known as "flash"

- require intensive analog design to manage the large number of comparators and reference

- also known as bit-weighing conversion

- employs a comparator to weigh the applied input voltage against the output of an N-bit digital-to-analog converter(DAC)

- also called dual- or multi-slope data converters

- has two main sections: a circuit that acquires and digitizes the input, producing a time-domain interval or pulse sequence; and a counter that translates the result into a digital output value

Select the following that corresponds to ADC architecture (Low-to-Medium High-Accuracy)

Integrating

Oversampling

Successive Approximation

Flash

Select the following that corresponds to ADC architecture (Medium Speed Medium Accuracy)

Flash

Two Step

Successive Approximation

Algorithmic

Each __________ has corresponding digital input word.

Is the numbers of bits, which defines the resolution of the converter.

Is the process of assigning an output code to a range of input values.

Is less with higher resolution as the input range is divided into a greater range number of smaller ranges

Some information, there has been lost and distortion has been introduced into the signal, which is known as the _______________?

Are most important in application where signals are slowly changing or low frequency signal with respect to the sampling frequency.

Are those that affect the accuracy of the converter when it is converting static (dc) signals.

The __________ is defined as the difference between the ideal and actual offset points.

If trimming is not possible, this error is referred to as the?

The ___________is the deviation of the transfer function from the ideal slope.

The difference between the nominal and actual gain points on the transfer function after the offset has been trimmed

The _____________________ is ude to describe the error in step size

It is a characteristic of the Dac where output always increase as input increase - no negative slope in transfer response

If max DNL > LSB, is there a possibility that the converter can become?

Non-monotonic

Monotonic

If max DNL > 1 LSB in an ADC, there is a possibility that the ADC will have?

Is the deviation of the values on the actual transfer function from a straight line.

The size and distribution of the DNL error will determine the integral linearity of the converter. Hence, the term " "

DSP FINALS QUIZ TERMS

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