Copyright © Philip M. Parker, INSEAD. Terms of Use.
| Domain | Definition |
Computing | Digital to Analog Converter |
Source: compiled by the editor from various references; see credits. | |
(From Wikipedia, the free Encyclopedia)
In electronics, a digital to analog converter (abbreviated to DAC or D-to-A) is a device for converting a digital (usually binary) code to an analogue signal (usually a current or voltage). This is done with a network of resistors, usually a ladder of two sizes of resistors, one twice the other.
An analog to digital converter performs the reverse operation.
Applications
Audio
An analogue signal from a microphone or other sound source can be converted to digital form for storage in a computer, where it can be edited if necessary and then reconstructed for playback. In a personal computer, the conversion is usually done in a sound card, but there are some USB devices that do this conversion externally to improve the sound quality.
Video
Video signals from a digital source, such as a computer, must be converted to analog form if they are to be displayed on an analog monitor. As of 2003, analog monitors are more common than digital, but this may change as flat panel displays become more widespread. The DAC is usually integrated with some memory (RAM), which contains conversion tables for gamma correction, contrast and brightness, to make a device called a RAMDAC.
Signal Processing
DACs are used in analogue signal processing circuits to replace potentiometers. They allow small adjustments to be made to the circuit by software, instead of the old technique of using a screwdriver. Because this type of DAC is updated only infrequently, it often has a slow serial interface. Some types have non-volatile memory to enable them to remember their last settings when the power is switched off.
Source: adapted by the editor from Wikipedia, the free encyclopedia under a copyleft GNU Free Documentation License (GFDL) from the article "Digital to analog converter."
Crosswords: DIGITAL TO ANALOG CONVERTER |
| Specialty definitions using "DIGITAL TO ANALOG CONVERTER": D/A converter, DAC. (references) |
| The following statistics estimate the number of searches per day across the major English-language search engines as identified by various trade publications. Hyperlinks lead to commercial use of the expression at Amazon.com. |
| Expression | Frequency per Day |
digital to analog converter | 190 |
| Source: compiled by the editor from various references; see credits. | |
| Language | Translations for "DIGITAL TO ANALOG CONVERTER"; alternative meanings/domain in parentheses. | ||||||||||||||||||||||
Danish | digital til analog omformer (digital/analog converter). (various references) | ||||||||||||||||||||||
Dutch | digitaal-analoog omzetter (digital/analog converter). (various references) | ||||||||||||||||||||||
Finnish | digitaali-analogiamuunnin (digital/analog converter), D/A-muutin (digital/analog converter). (various references) | ||||||||||||||||||||||
French | DAC (digital/analog converter), convertisseur numérique-analogique (digital/analog converter, digital-analogue converter, digital-to-analog converter), convertisseur digital-analogique (digital/analog converter), CAD (digital/analog converter). (various references) | ||||||||||||||||||||||
German | Digitalanalogwandler (digital/analog converter). (various references) | ||||||||||||||||||||||
Greek | μετατροπέας ψηφιακού/αναλογικού (digital/analog converter). (various references) | ||||||||||||||||||||||
Italian | convertitore digitale-analogico (digital/analog converter). (various references) | ||||||||||||||||||||||
Pig Latin | igitalday otay analogay onvertercay DAC (digital/analog converter), conversor digital-analógico (digital-analog converter). (various references) DAC (digital/analog converter), convertidor digital/analógico (digital/analog converter), convertidor D/A (digital/analog converter). (various references) D/A-omvandlare (digital/analog converter). (various references) | ||||||||||||||||||||||
Copyright © Philip M. Parker, INSEAD. Terms of Use.
