AW87549FCR数据手册Awinic中文资料规格书

描述 Description

AW87549 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, 5th generation Smart K audio amplifier. AW87549 integrates AWINIC’s proprietary Triple-Level Triple-Rate AGC audio algorithm, effectively eliminating music noise and improving sound quality and volume. AW87549 integrates high voltage synchronous adaptive Boost with efficiency up to 88% as the class D power stage supply, significantly improving the dynamic range of music. AW87549 noise floor is as low as to 45μV at speaker mode, with 103dB high signal-to-noise ratio (SNR). The ultra-low distortion 0.013% and unique Triple-Level Triple-Rate AGC technology bring high quality music enjoyment.It supports speaker and receiver 2-in-1 application. Quiescent current is 6.8mA when VDD is equal to 3.6V. In the receiver mode, its ultra-low noise is 11μV. Class D receiver also has high PSRR performance to completely suppress TDD-noise.It 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.It built-in over current protection, over temperature protection and short circuit protection function, effectively protect the chip.AW87549 features small FCQFN 2.0mm X3.0mm X0.55mm-16L package.

特性 Features

Triple-Level Triple-Rate AGC algorithm to effectively eliminate noise, pure sound qualityHalf wave modulation High efficiency large drive ability Adaptive BoostThe output voltage：9.0VOverall efficiency up to 85%Maximum output Power：4.75W@8ΩSupport External PVDDHigh PSRR：82dB (217Hz)Low noise： 45μV (K Speaker @18dB THD+N=0.013%) 19μV (D Receiver @9dB THD+N=0.013%) 11μV (D Receiver @0dB THD+N=0.015%)Selectable speaker-guard power level： 0.5W~2W@8ohm, 100mW/stepSpeaker & receiver 2-in-1 mode applicationBattery tracking AGC selectable, for low voltage protectionQuiescent current: 6.8mA@3.6VSuper TDD-Noise suppressionExcellent pop-click suppressionExcellent full bandwidth EMI suppressionSupport 1.8V logic I2C controlFCQFN 2.0mm X 3.0mm X 0.55mm-16L package