Class D amplifiers generally use a low-pass filter to attenuate the switching noise in the output waveform while passing the audio signal to the loudspeaker, but many engineers are not familiar with ...

A class-D puts out a pulse-width modulated (PWM) signal instead of the typical class-AB amplifiers linear signal The PWM signal contains the audio signal and the PWM switching frequency plus harmonics ...

The AUX-0025 filter instrument may answer the measurement demands of chip designers and switching-amp manufacturers for an accurate and repeatable solution. Audio Precision's Class D, Class I, Class S ...

The switching amplifier, or class D amplifier, has risen quickly to prominence in consumer audio applications, from MP3 devices including mobile phone handsets to games consoles, LCD-TVs, and home ...

Consumer demand for flexible audio features and hi-fi sound from mobile phones has led to handset audio chip designers having to optimise the Class D amplifier to meet the noise and power management ...

Launched at CES 2005, a direct digital feedback technology from audio switching amplifier specialist Zetex Semiconductors sets new standards in digital amplifier sound quality. Named Class Z, this ...