Maxim Integrated MAX9820ETB+ Audio Amplifier

The MAX9820ETB+ from Maxim Integrated is a high-performance, mono audio power amplifier designed to deliver exceptional audio quality for a wide range of applications. This compact, integrated circuit is housed in a small, 10-pin TDFN package, making it an ideal choice for space-constrained portable devices.

With its high efficiency and low distortion, the MAX9820ETB+ is perfect for driving headphones or earpieces in mobile phones, tablets, laptops, and other portable multimedia devices. It offers a 2.7V to 5.5V supply voltage range, which allows it to be used in systems powered by a single lithium-ion cell or three-series NiMH battery configuration.

The MAX9820ETB+ features a 1.4W output power capability into a 16Ω load, and 1.1W into a 32Ω load, ensuring powerful and clear audio output. The amplifier also includes a low 0.02% THD+N (Total Harmonic Distortion plus Noise) at 1kHz, which contributes to its high-fidelity sound reproduction.

One of the key benefits of the MAX9820ETB+ is its integrated click-and-pop suppression circuitry, which minimizes noise that can occur during turn-on and turn-off transitions. This feature is particularly important in personal audio devices where such noises can be distracting or uncomfortable for the user.

The device also comes with built-in thermal overload protection, which safeguards the amplifier and the connected speaker from damage due to excessive heat. In addition, the MAX9820ETB+ includes a low-power shutdown mode, which reduces power consumption when the amplifier is not in use, thereby extending battery life in portable applications.

Overall, the Maxim Integrated MAX9820ETB+ is a versatile and reliable audio amplifier that offers excellent sound quality, high efficiency, and a feature set tailored for the demands of modern portable electronics. Its compact form factor and robust protection features make it a top choice for designers looking to enhance the audio experience in their products.