Claimed as the industry’s first pulse-density modulation (PDM), digital-input Class D audio amplifier for handset and other portable applications, the SSM2517 combines an audio DAC, power ...

The pulse-density-modulation SSM2517 digital-input Class D audio amplifier suits use in handsets, portable media players, and laptop computers. The amplifier combines an audio DAC, a power amplifier, ...

Some Class-D amplifiers employ a feedback loop to the ADC which mixes with the original signal to reduce the induced harmonic content [6]. While the desired power efficiency was obtained for the ...

Pulse Width Modulation (PWM) or Pulse Duration Modulation (PDM) is a technique ... the amplifiers operate class B for the modulator and class C for the RF carrier. On the other hand, the solid-state ...

PDM — pulse density modulation — is similar to PWM and, like PWM, requires a filter that could range from a simple RC network to an active filter. You can see the result in the video below.