BD3871FS-E2

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BD3871FS-E2 belongs to Audio Special Purpose, which is a two-channel output power amplifier IC achieving high reliability, high performance and high quality. It optimized the sound quality and the drive capability of a general car audio system by supporting high voltage-gain, low distortion, and low output noise.

BD3871FS-E2 Application Field

BD3871FS-E2 is especially suitable for car audio use. As a car audio power amplifier IC, BD3871FS-E2 is equipped with the new technology of "electronic switch" in the diode emulator, which optimizes sound qualities directly related to the electric switch such as distortion, crossover distortion, noise level, and so on. Moreover, BD3871FS-E2 contains a linear power amplifier, a standby control circuit, a thermal protection circuit, and a mute circuit. It also supports API (Application Programming Interface) for adjusting basic setting parameters such as gains and soft mute, so it is optimal for use in audio systems for not only car audio but also other mobile audio devices that use the power amplifier.

BD3871FS-E2 Working Principle

The working principle of BD3871FS-E2 is based on the integrated circuit, which is comprised of a linear power amplifier, a standby control circuit, a thermal protection circuit, and a mute circuit. It provides two-channel audio power output, with high voltage-gain, low distortion, and low output noise. As to the linear power amplifier, it contains the structure that amplifies the input signal and outputs it as an amplified signal. The standby control circuit helps the one-chip IC manage the power supply, output power, and shutdown. The thermal protection circuit prevents discharged heat of the one-chip IC, improving the safe operating environment. The mute circuit has the function of attenuating the output signal level. Lastly, the API allows users to adjust the setting parameters of the audio system such as gains and soft mute.

In summary, BD3871FS-E2 is designed to improve the sound quality and the drive capability of a general car audio system. It adopts the new technology of "electronic switch" and supports the API for the audio system basic setting parameters. All of these features make BD3871FS-E2 an excellent choice for applications in car audio and other mobile audio devices that use the power amplifier.

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