Difference between revisions of "Lexicon D/A-Converter"
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| − | + | A '''digital-to-analog converter''' converts a [[lexicon digital|digital]] Data stream into an analog signal, and is thus the counterpart of an [[Encyclopedia A/D converter|A/D converter]]. In practice, there are a number of different methods, depending on the intended use: | |
| − | # | + | # Direct method (parallel method) |
| − | # | + | # counting method (pulse width modulation) |
| − | # | + | # Iteration method (weighing method) |
| + | # Delta-sigma converter | ||
| + | These methods are sometimes combined to achieve a certain compromise of conversion speed, accuracy and linearity. | ||
| − | + | D/A converters for audio or video signals are now offered as ready-made chips, which has greatly simplified the manufacture of such devices. As a rule, the D/A converter is built into a device as a component. However, there are also D/A converters as independent devices, with their own housing, their own power supply, and a selection of interfaces for the data input (for audio e.g. [[Encyclopedia S/PDIF|S/P-DIF]]). | |
| − | |||
| − | [[ | + | See also: |
| + | * [[http://de.wikipedia.org/wiki/Digital-Analog-Wandler Wikipedia article]] | ||
| + | |||
| + | [[Category:Encyclopedia]] | ||
Latest revision as of 07:31, 1 November 2006
A digital-to-analog converter converts a digital Data stream into an analog signal, and is thus the counterpart of an A/D converter. In practice, there are a number of different methods, depending on the intended use:
- Direct method (parallel method)
- counting method (pulse width modulation)
- Iteration method (weighing method)
- Delta-sigma converter
These methods are sometimes combined to achieve a certain compromise of conversion speed, accuracy and linearity.
D/A converters for audio or video signals are now offered as ready-made chips, which has greatly simplified the manufacture of such devices. As a rule, the D/A converter is built into a device as a component. However, there are also D/A converters as independent devices, with their own housing, their own power supply, and a selection of interfaces for the data input (for audio e.g. S/P-DIF).
See also: