In the sound system,the audio amplifier plays a vital role.Like the"heart"of the sound,it is responsible for amplifying the weak audio signal to a power level sufficient to drive the speaker.The analog AU6815 of Yingshang Micro-Agent is a digital input dual-channel stereo Class D power amplifier,which stands out in the audio field with its excellent performance and flexible configuration.This analog audio amplifier chip supports a wide voltage working range of 4.5V to 21V,and can provide a strong output power of 2×25W or 1×50W at the maximum,meeting the power requirements of various audio devices.
 

Compared with the traditional amplifier,the AU6815 audio power amplifier adopts innovative modulation mode,which significantly reduces the static power consumption and effectively prolongs the battery life of portable devices.The 32-bit high-precision audio DSP integrated in the audio amplifier chip is its core competitiveness,which supports up to 96kHz processing bandwidth(sampling rate of 192kHz)and provides users with professional-level sound quality processing ability.
 

In terms of sound quality,the THD+N(Total Harmonic Distortion plus Noise)index of the audio power amplifier AU6815 can be as low as 0.03%,which,combined with the extremely low DC bias voltage,makes it outstanding in eliminating on-off sonic boom and brings pure and impurity-free audio experience.
 

The analog audio amplifier chip AU6815 of Yingshangwei is equipped with 2×15-segment equalizer,3-segment dynamic range control(DRC)and automatic gain limiting(AGL)and other tuning algorithms.Especially worth mentioning is its dynamic bass enhancement algorithm(DPEQ),which effectively enhances the bass performance at low volume,and can maintain rich low-frequency response even at different volume settings.
 

Function of Digital Dual Channel Stereo Class D Audio Power Amplifier

As a medium and high power audio amplifier,AU6815 is professional in thermal management,supporting four-speed over-temperature alarm and over-temperature shutdown protection,and the chip temperature can be continuously output through registers,which is convenient for the overall thermal management of the system.At the same time,the audio power amplifier also provides multiple horn protection mechanisms such as overcurrent,overvoltage,undervoltage and DC protection to ensure the stable and reliable operation of the audio system.
 

AU6815 audio power amplifier supports TSSOP-28 package,and it does not need additional heat sink.Its working temperature range covers-40 C to+85 C,and it can adapt to various environmental conditions.Its control interface supports I2C software configuration and hardware IO control modes,providing flexible choices for different application scenarios.
 

With its excellent performance and rich functions,AU6815 analog audio amplifier chip is very suitable for smart speakers,car audio systems,professional audio equipment and various portable audio products,bringing consumers a better and more reliable audio experience.


Keywords: analog audio amplifier