特性
Multi-Level AGC音频算法，有效消除噪声并使声音平滑
自适应DO-Chargepump技术：
低静态电流：4.2mA@3.6V
整体效率高达89%
输出功率：3.1W@8Ω VDD=4.2V
低噪声：
SPK：30uV
RCV：9.2uV
低THD+N：0.02%
支持大功率听筒立体声应用
支持扬声器与听筒二合一应用
支持1.2V&1.8VI2C控制
过流保护、过温保护和短路保护
超强的TDD-Noise抑制性能
优异的pop-click抑制性能
高电源抑制比：83dB（217Hz）
FCQFN 2.5mmX2.0mmX0.55mm-18L封装
说明
AW87391A is specifically designed to improve the musical output dynamic range, enhance the overall sound quality, which is a new high efficiency, low noise, constant large volume, Smart K audio amplifier. AW87391A integrates awinic’s proprietary Multi-Level AGC audio algorithm, effectively eliminating music noise and improving sound quality and volume. AW87391A integrated efficiency up to 93.3% of Adaptive DO-Charge pump technology, significantly improving the dynamic range of the music output and power consumption of audio system. AW87391A noise floor is as low as to 30μV at speaker mode, with 105dB high signal-to-noise-ratio (SNR). The ultra-low distortion 0.02% and unique Multi-Level AGC technology bring high quality music enjoyment.
AW87391A controls internal registers through the I2C interface. Register parameters include output voltage, power amplifier gain, Multi-Level AGC parameters etc.
AW87391A built-in over current protection, over temperature protection and short circuit protection function, effectively protect the chip. AW87391A features small FCQFN 2.5mmX2.0mmX0.55mm-18L package.
