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- Pulse-density_modulation abstract "Pulse-density modulation, or PDM, is a form of modulation used to represent an analog signal with digital data. In a PDM signal, specific amplitude values are not encoded into codewords of pulses of different weight as they would be in pulse-code modulation (PCM). Instead, it is the relative density of the pulses that corresponds to the analog signal's amplitude. The output of a 1-bit DAC is the same as the PDM encoding of the signal. Pulse-width modulation (PWM) is a special case of PDM where the switching frequency is fixed and all the pulses corresponding to one sample are contiguous in the digital signal. For a 50% voltage with a resolution of 8-bits, a PWM waveform will turn on for 128 clock cycles and then off for the remaining 128 cycles. With PDM and the same clock rate the signal would alternate between on and off every other cycle. The average is 50% for both waveforms, but the PDM signal switches more often. For 100% or 0% level, they are the same.".
- Pulse-density_modulation thumbnail Pulse-density_modulation_1_period.gif?width=300.
- Pulse-density_modulation wikiPageExternalLink 1-bit.
- Pulse-density_modulation wikiPageID "31980229".
- Pulse-density_modulation wikiPageLength "8586".
- Pulse-density_modulation wikiPageOutDegree "43".
- Pulse-density_modulation wikiPageRevisionID "642505661".
- Pulse-density_modulation wikiPageWikiLink 1-bit_DAC.
- Pulse-density_modulation wikiPageWikiLink Amplitude.
- Pulse-density_modulation wikiPageWikiLink Analog_signal.
- Pulse-density_modulation wikiPageWikiLink Average.
- Pulse-density_modulation wikiPageWikiLink Bitstream.
- Pulse-density_modulation wikiPageWikiLink Category:Signal_processing.
- Pulse-density_modulation wikiPageWikiLink Code.
- Pulse-density_modulation wikiPageWikiLink Delta-sigma_modulation.
- Pulse-density_modulation wikiPageWikiLink Delta-sigma_modulator.
- Pulse-density_modulation wikiPageWikiLink Delta_modulation.
- Pulse-density_modulation wikiPageWikiLink Density.
- Pulse-density_modulation wikiPageWikiLink Difference_equation.
- Pulse-density_modulation wikiPageWikiLink Digital-to-analog_converter.
- Pulse-density_modulation wikiPageWikiLink Digital_data.
- Pulse-density_modulation wikiPageWikiLink Direct_Stream_Digital.
- Pulse-density_modulation wikiPageWikiLink Discrete_frequency.
- Pulse-density_modulation wikiPageWikiLink Discrete_frequency_domain.
- Pulse-density_modulation wikiPageWikiLink Discrete_time.
- Pulse-density_modulation wikiPageWikiLink Discrete_time_and_continuous_time.
- Pulse-density_modulation wikiPageWikiLink High-pass_filter.
- Pulse-density_modulation wikiPageWikiLink Low-pass_filter.
- Pulse-density_modulation wikiPageWikiLink Modulation.
- Pulse-density_modulation wikiPageWikiLink Negative_feedback.
- Pulse-density_modulation wikiPageWikiLink Neural_coding.
- Pulse-density_modulation wikiPageWikiLink Noise_shaping.
- Pulse-density_modulation wikiPageWikiLink Periodic_function.
- Pulse-density_modulation wikiPageWikiLink Pulse-code_modulation.
- Pulse-density_modulation wikiPageWikiLink Pulse-width_modulation.
- Pulse-density_modulation wikiPageWikiLink Quantization_(signal_processing).
- Pulse-density_modulation wikiPageWikiLink Quantization_error.
- Pulse-density_modulation wikiPageWikiLink Rate_coding.
- Pulse-density_modulation wikiPageWikiLink Recurrence_relation.
- Pulse-density_modulation wikiPageWikiLink Sample_(signal).
- Pulse-density_modulation wikiPageWikiLink Sampling_(signal_processing).
- Pulse-density_modulation wikiPageWikiLink Stereo_audio.
- Pulse-density_modulation wikiPageWikiLink Stereophonic_sound.
- Pulse-density_modulation wikiPageWikiLink Super_Audio_CD.
- Pulse-density_modulation wikiPageWikiLink Trigonometric_function.
- Pulse-density_modulation wikiPageWikiLink Trigonometric_functions.
- Pulse-density_modulation wikiPageWikiLink Z-transform.
- Pulse-density_modulation wikiPageWikiLink File:Pulse-density_modulation_1_period.gif.
- Pulse-density_modulation wikiPageWikiLink File:Pulse-density_modulation_2_periods.gif.
- Pulse-density_modulation wikiPageWikiLink File:Pulse_density_modulation.svg.
- Pulse-density_modulation wikiPageWikiLinkText "PDM".
- Pulse-density_modulation wikiPageWikiLinkText "Pulse Density modulation".
- Pulse-density_modulation wikiPageWikiLinkText "Pulse-density modulation".
- Pulse-density_modulation wikiPageWikiLinkText "pulse-density modulated".
- Pulse-density_modulation wikiPageWikiLinkText "pulse-density modulation".
- Pulse-density_modulation hasPhotoCollection Pulse-density_modulation.
- Pulse-density_modulation wikiPageUsesTemplate Template:Reflist.
- Pulse-density_modulation subject Category:Signal_processing.
- Pulse-density_modulation hypernym Form.
- Pulse-density_modulation type Article.
- Pulse-density_modulation type Article.
- Pulse-density_modulation type Field.
- Pulse-density_modulation comment "Pulse-density modulation, or PDM, is a form of modulation used to represent an analog signal with digital data. In a PDM signal, specific amplitude values are not encoded into codewords of pulses of different weight as they would be in pulse-code modulation (PCM). Instead, it is the relative density of the pulses that corresponds to the analog signal's amplitude. The output of a 1-bit DAC is the same as the PDM encoding of the signal.".
- Pulse-density_modulation label "Pulse-density modulation".
- Pulse-density_modulation sameAs Modulacixc3xb3_per_densitat_dimpuls.
- Pulse-density_modulation sameAs Modulación_PDM.
- Pulse-density_modulation sameAs Modulacja_gęstości_impulsów.
- Pulse-density_modulation sameAs m.032jwh.
- Pulse-density_modulation sameAs Q598973.
- Pulse-density_modulation sameAs Q598973.
- Pulse-density_modulation wasDerivedFrom Pulse-density_modulation?oldid=642505661.
- Pulse-density_modulation depiction Pulse-density_modulation_1_period.gif.
- Pulse-density_modulation isPrimaryTopicOf Pulse-density_modulation.