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PDM Input Class D Audio Power Amplifier - Maxim …
https://www.maximintegrated.com/en/products/analog/audio/MAX98358.html
The MAX98358 is a digital pulse-density modulated (PDM) input Class D power amplifier that provides Class AB audio performance with Class D efficiency. This IC offers five selectable gain settings (3dB, 6dB, 9dB, 12dB, and 15dB) set by a single gain-s
MAX98356 PDM Input Class D Audio Power Amplifier
https://datasheets.maximintegrated.com/en/ds/MAX98356.pdf
General Description The MAX98356 is a digital pulse-density modulated (PDM) input Class D power amplifier that provides Class AB audio performance with Class D efficiency. This IC offers five selectable gain settings (3dB, 6dB, 9dB, 12dB, and 15dB) set by a single gain-select input (GAIN). The MAX98356 takes a stereo pulse density modulated
MAX98356 PDM Input Class D Audio Power Amplifier | …
https://www.maximintegrated.com/en/products/analog/audio/MAX98356.html
The MAX98356 is a digital pulse-density modulated (PDM) input Class D power amplifier that provides Class AB audio performance with Class D efficiency. This IC offers five selectable gain settings (3dB, 6dB, 9dB, 12dB, and 15dB) set by a single gain-select input (GAIN). View a video that highlights the features of the MAX98355/6.
TFA9881 3.4 W PDM input class-D audio amplifier
https://www.nxp.com/docs/en/data-sheet/TFA9881.pdf
3.4 W PDM input class-D audio amplifier 8. Functional description The TFA9881 is a high-efficiency mono Bridge Tied Load (BTL) class-D audio amplifier with a digital stereo PDM input interface. A High-Pass (HP) filter removes the DC components from the incoming PDM stream. This stream is subsequently converted into two PWM signals.
AES E-Library » A High-Efficient Pulse-Density Modulation ...
https://www.aes.org/e-lib/browse.cfm?elib=7451
Characteristic of PDM amplifier The PDM amplifier is the class D amplifier which combines the principle of the delta-sigma ( Z_J Z or sigma-delta Z_ ) analog-to-digital (A/D) converter, t_J g.1 Low power dissipation and high efficiency We compare the PDM amplifier to the class B amplifier about loss and efficiency.
Interfacing PDM digital microphones using STM32 …
https://www.st.com/resource/en/application_note/dm00380469-interfacing-pdm-digital-microphones-using-stm32-mcus-and-mpus-stmicroelectronics.pdf
Their combination of small footprint and noise immunity allows the implementation of multiple microphones in a single device, creating an increasing growth of audio in industrial and consumer applications by offering a hands-free human machine interface, noise cancellation, and high quality audio capture.
Understanding PDM Digital Audio - users.ece.utexas.edu
https://users.ece.utexas.edu/~bevans/courses/rtdsp/lectures/10_Data_Conversion/AP_Understanding_PDM_Digital_Audio.pdf
Understanding PDM Digital Audio 3 Introduction PDM stands for pulse density modulation. However, it is really better summarized as “oversampled 1-bit audio”, as it is nothing more than a high sampling rate, single-bit digital system. If one increased the sample rate of audio CDs by a large factor, and reduced the wordlength from 16 bits to ...
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https://datasheets.maximintegrated.com/en/ds/MAX98358.pdf
The MAX98358 is a digital pulse-density modulated (PDM) input Class D power amplifier that provides Class AB audio performance with Class D efficiency. This IC offers five selectable gain settings (3dB, 6dB, 9dB, 12dB, and 15dB) set by a single gain-select input (GAIN).
FAN3852 - Microphone Pre-Amplifier with Digital Output
https://www.onsemi.com/pdf/datasheet/fan3852-d.pdf
Pulse Density Modulation (PDM) data streams. The pre−amplifier accepts analog signals from the ECM and drives an over−sampled sigma delta Analog−to−Digital Converter (ADC) and outputs PDM data. The PDM digital audio has the advantage of noise rejection and easy interface to mobile handset processors.
Pulse-density modulation - Wikipedia
https://en.wikipedia.org/wiki/Pulse-density_modulation
PDM is the encoding used in Sony's Super Audio CD (SACD) format, under the name Direct Stream Digital . Some systems transmit PDM stereo audio over a single data wire. The rising edge of the master clock indicates a bit from the left channel, while the falling edge of the master clock indicates a bit from the right channel. See also
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