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- Delta-sigma_modulation abstract "Delta-sigma (ΔΣ; or sigma-delta, ΣΔ) modulation is a digital signal processing, or DSP method for encoding analog signals into digital signals as found in an ADC. It is also used to transfer higher-resolution digital signals into lower-resolution digital signals as part of the process to convert digital signals into analog.In a conventional ADC, a analog signal is integrated, or sampled, with a sampling frequency and subsequently quantized in a multi-level quantizer into a digital signal. This process introduces quantization error noise. The first step in a delta-sigma modulation is delta modulation. In delta modulation the change in the signal (its delta) is encoded, rather than the absolute value. The result is a stream of pulses, as opposed to a stream of numbers as is the case with PCM. In delta-sigma modulation, the accuracy of the modulation is improved by passing the digital output through a 1-bit DAC and adding (sigma) the resulting analog signal to the input signal, thereby reducing the error introduced by the delta-modulation.This technique has found increasing use in modern electronic components such as converters, frequency synthesizers, switched-mode power supplies and motor controllers, primarily because of its cost efficiency and reduced circuit complexity.Both analog-to-digital converters (ADCs) and digital-to-analog converters (DACs) can employ delta-sigma modulation. A delta-sigma ADC first encodes an analog signal using high-frequency delta-sigma modulation, and then applies a digital filter to form a higher-resolution but lower sample-frequency digital output. On the other hand, a delta-sigma DAC encodes a high-resolution digital input signal into a lower-resolution but higher sample-frequency signal that is mapped to voltages, and then smoothed with an analog filter. In both cases, the temporary use of a lower-resolution signal simplifies circuit design and improves efficiency.The coarsely-quantized output of a delta-sigma modulator is occasionally used directly in signal processing or as a representation for signal storage. For example, the Super Audio CD (SACD) stores the output of a delta-sigma modulator directly on a disk.".
- Delta-sigma_modulation wikiPageExternalLink CMOSedu.com.
- Delta-sigma_modulation wikiPageExternalLink SigmaDelta.pdf.
- Delta-sigma_modulation wikiPageExternalLink pubs.html.
- Delta-sigma_modulation wikiPageExternalLink sigma-delta-modulation.
- Delta-sigma_modulation wikiPageExternalLink projects.html.
- Delta-sigma_modulation wikiPageExternalLink Mash.htm.
- Delta-sigma_modulation wikiPageExternalLink MT-022.pdf.
- Delta-sigma_modulation wikiPageExternalLink DeltaSigma.html.
- Delta-sigma_modulation wikiPageExternalLink ?p=392.
- Delta-sigma_modulation wikiPageExternalLink example-simulink-model-scripts.
- Delta-sigma_modulation wikiPageExternalLink continuous-time-sigma-delta-adc-noise-shaping-filter-circuit-architectures-2.
- Delta-sigma_modulation wikiPageExternalLink showArticle.jhtml?articleID=18402743.
- Delta-sigma_modulation wikiPageExternalLink showArticle.jhtml?articleID=18402763.
- Delta-sigma_modulation wikiPageExternalLink 1-bit.
- Delta-sigma_modulation wikiPageExternalLink presentation.pdf.
- Delta-sigma_modulation wikiPageExternalLink Sigma-delta-techniques-extend-DAC-resolution.
- Delta-sigma_modulation wikiPageExternalLink WP-10.
- Delta-sigma_modulation wikiPageID "1745452".
- Delta-sigma_modulation wikiPageRevisionID "600186840".
- Delta-sigma_modulation cleanup "June 2011".
- Delta-sigma_modulation hasPhotoCollection Delta-sigma_modulation.
- Delta-sigma_modulation refimprove "December 2011".
- Delta-sigma_modulation technical "June 2011".
- Delta-sigma_modulation subject Category:Digital_signal_processing.
- Delta-sigma_modulation comment "Delta-sigma (ΔΣ; or sigma-delta, ΣΔ) modulation is a digital signal processing, or DSP method for encoding analog signals into digital signals as found in an ADC. It is also used to transfer higher-resolution digital signals into lower-resolution digital signals as part of the process to convert digital signals into analog.In a conventional ADC, a analog signal is integrated, or sampled, with a sampling frequency and subsequently quantized in a multi-level quantizer into a digital signal.".
- Delta-sigma_modulation label "Delta-Sigma-Modulation".
- Delta-sigma_modulation label "Delta-sigma modulation".
- Delta-sigma_modulation label "Modulación Sigma-Delta".
- Delta-sigma_modulation label "Modulacja Delta-Sigma".
- Delta-sigma_modulation label "Modulazione Sigma-Delta".
- Delta-sigma_modulation label "ΔΣ変調".
- Delta-sigma_modulation label "ΔΣ調變".
- Delta-sigma_modulation label "Сигма-дельта-модуляция".
- Delta-sigma_modulation label "تعديل دلتا سيغما".
- Delta-sigma_modulation sameAs Delta-Sigma-Modulation.
- Delta-sigma_modulation sameAs Modulación_Sigma-Delta.
- Delta-sigma_modulation sameAs Modulazione_Sigma-Delta.
- Delta-sigma_modulation sameAs ΔΣ変調.
- Delta-sigma_modulation sameAs 델타-시그마_변조.
- Delta-sigma_modulation sameAs Modulacja_Delta-Sigma.
- Delta-sigma_modulation sameAs m.05sp_w.
- Delta-sigma_modulation sameAs Q1184820.
- Delta-sigma_modulation sameAs Q1184820.
- Delta-sigma_modulation wasDerivedFrom Delta-sigma_modulation?oldid=600186840.
- Delta-sigma_modulation isPrimaryTopicOf Delta-sigma_modulation.