The analog signal goes through an ADC (Analog to Digital Converter) integrated circuit chip which analyzes it by taking samples in discrete steps which is a process called "quantizing": at each step the signal is rapidly matched against 255 digital levels.
Each of the 255 levels has a matching eight bit digital (0 or 1) word associated with it. Thus the sigbal level at each step is converted into a binary number to represent that level, which is called "encoding", and the resulting stream of encoded steps is sent onwards as the digital signal.
That process is also called PCM (Pulse Code Modulation).
Further more detailed answers
There are ICs called ADC for analogue digital converter. The mechanism is simple: there is a precision reference voltage of any value. This reference voltage is compared to the input voltage. The comparator's bits output are scaled to represent a digital value in binary code for a 12 bits up to 2047. If the reference value is 10 volts then the least significant bit is 10/2048=4.9 x10-3 volts or 4.88 mV or thereabout. The least significant bit (LSB) can be monotonic.
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An analogue signal is compared to a fixed DC reference voltage. The comparator will add transition bits, each equivalent to a digital unit, [i.e. one bit: a 0 or a 1] until full scale is reached. An analogue value of xxx volts will be converted to xxxx bits for a 4 bit converter and into xxxxxxxxxxxx bits for a 12 bit convertor. The IC used is called an ADC or Analog to Digital Converter.
Note
A Digital to Analogue Converter (DAC) does it the other way around with the same precision and results.
Sampling, Quantizing, and Encoding
ATA (analog telephone adapter
Sampling Rate.
And analog multi-tester will have a meter, battery, and switch. The meter is the part that can show the conversion of analog to digital or simply act as an analog display. The battery is the power source and the switch is the part that allows you to select the specific function of the multi-tester.
Get a digital to analog converter box or connect it to a digital DVD or vcr.
The digital tuner also demodulates the normal analog broadcasting. The tuner outputs a analog composite video signal to Video Processing Chip. In that chip, there is a ADC to convert the analog to digital, then after procession, display the content on the screen
Yes. The stages are Sampling, Quantizing and Encoding (in that order)
Analogue to digital is a conversion process not a transmission process.
Analog to digital conversion done by the ADC's. It's digitization. ... Also referred to as video capture.
Transforming analog signals to digital is known simply as analog to digital conversion, sometimes shortened to A-D conversion.
while conversion of analog signal to digital signal, we need to convert continuous analog signal to discrete signal. this can be done by dividing the analog signal into specific time slots. this process is known as sampling. there is a condition for sampling that can be given as follows. fs<=2fm
The full form of Modem is Modulator-demodulator. Modulation is process of converting the digital computer signals to analog telephone signals. Demodulation is the opposite conversion, analog to digital.
AD is Analog to Digital conversion the use is to do digital measurements of analog voltages and currents, a computer soundcard is an AD converter that convert analog sound to digital sound so that it can be played on a computer, and DA is the opposite, digital to analog conversion, the digital sound on the computer is converted to analog sound to drive a speaker or headphone
No. There will be no analog signal to receive and process from the outdoor antenna. The only signal coming from the outdoor antenna will be digital. When the conversion is complete. You will need to hook up your antenna directly to the TV. Your conversion box will be worthless as far as analog to digital is concerned.
DA conversion or D-to-A conversion.
ATA (analog telephone adapter
No, Pulse Code Modulation is a communication method used to carry digital data but is not part of any analog to digital conversion. PCM is often used to carry audio data as a digital stream and therefore is the encoding used as the signal is first converted to a digital format.
digital