Nuvoton Class D portable consumer audio amplifier NAU82039

Nuvoton has launched a new class D audio amplifier series specifically designed for portable consumer devices-NAU82039. NAU82039 has high-performance single-tone, analog 3.2 Watt (W) Class D power amplifier and 12dB fixed gain. It is a smart phone, tablet computer, docking station, portable audio and video player, satellite navigation, liquid crystal display (LCD) / Excellent choice for mobile consumer electronics such as LED TVs and toys.

Nuvoton senior product manager Jae-Hong Oh said that in the rapidly developing, highly competitive consumer and portable device market, it is extremely important to reduce power consumption and noise. Therefore, Nuvoton engineers strive to develop a new generation of Class D amplifiers. In addition to reducing power consumption and exchanging noise according to market demand, it is also equipped with many functions to enrich consumer experience.

The ultra-low quiescent current 1.25 milliamperes (mA) @ 3.6 volts (V) and high output power of the NAU82039 mono Class D audio amplifier not only establish a new standard for audio amplifiers, but also become portable and portable due to the significant extension of battery life Ideal device for digital product applications; and the input signal of this new amplifier can be used in single-ended input or differential mode.

Nuvoton website:

The main circuit of the equipment is the full bridge controlled circuit and the trigger circuit is the programmable integrated circuit. The phase-shifting, fixed width and modulation of the pulse are all digitized, and it does not need any adjustment for the section of the trigger. It has the features of high reliability, high pulse symmetry, strong anti-interference ability, quick reaction, as well as the advantages of no heat-generating, constant current, energy-saving which is compared with the discharge with the electrical resistance.

Battery Maintenance Equipment

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