描述 Description

10.5V High Efficiency High PSRR Low Noise TLTR-AGC 3rd Generation Smart K Audio Amplifier With Negative Ultra-Low THD Audio Switch?AW87529 is specifically designed to improve the musical output dynamic range, enhance the overall sound quality. It is a new high efficiency, high PSRR，low noise, constant large volume, 3rd generation Smart K audio amplifier. AW87529 integrates AWINIC’s proprietary Triple-Level Triple-Rate AGC audio algorithm, effectively eliminating music noise and improving sound quality and volume. AW87529 integrates high voltage synchronous Boost with efficiency up to 88% as the class D power stage supply, significantly improving the dynamic range of music. AW87529 noise floor is as low as to 43μV at speaker mode, with 103dB high signal-to-noise-ratio (SNR). The ultra-low distortion 0.04% and unique Triple-Level Triple-Rate AGC technology bring high quality music enjoyment. AW87529 supports speaker and receiver 2-in-1 application. In the receiver mode, its ultra-low noise is 18μV. Class D receiver also has high PSRR performance to completely suppress TDD-noise. AW87529 integrates negative audio switch, which has 0.001% ultra-low THD and -100dB high PSRR to resolve speaker and headphone sounding simultaneously when insert headphone. AW87529 controls internal registers through the I2C interface. Register parameters include boost output voltage, boost maximum input peak current, PA gain, Triple-Level Triple-Rate AGC parameters, etc.?

特性 Features

? Triple-Level Triple-Rate AGC algorithm to effectively
? High efficiency large drive ability BOOST
? Overall efficiency up to 78%
? Negative Audio Switch Mode：Vn<1μV，
? High PSRR：-82dB（217Hz）
? Selectable speaker-guard power leve
? ：
? Speaker & receiver 2-in-1 mode application
? protection
? Super TDD-Noise suppression
? Support 1.8V logic I2C control
? FCQFN 2.0mmX3.0mmX0.55mm-20L package