ADC/DAC

Question 1

ADC stands for

Answer 1

Analog to Digital Conversion

Question 2

How does ADC works

Answer 2

Analog to Digital Conversion (ADC) works by converting the
amplitude of an analog signal into a digital word

Question 3

give examples of where digital to analog conversion

Answer 3

A common situation where a DAC is found is a loudspeaker or earphone where a digital word is converted into an analog signal in the form of sound

Question 4

Why do you convert analog to digital conversion

Answer 4

Converting the analog signal into a digital form allows:
Error and noise-free transmission
Signal processing – compression, encryption
Flexibility – harder to program analog electronics compared to digital electronics

Question 5

What is sampling

Answer 5

capturing state
of signal at fixed intervals (Ts)

Question 6

what is Quantisation

Answer 6

Quantisation – assigning a
value X from a finite set of N values into which the
measurement range is divided

Question 7

what are the 2 processes involved in ADC

Answer 7

Quantisation and Sampling

Question 8

What process is Quantisation

Answer 8

Quantisation is the process whereby discrete output values are generated as a result of conversion