AW87317CSR数据手册Awinic中文资料规格书

描述 Description

AW87317 is designed to enhance smart mobile phonesound quality, which is a new high efficiency, low noise,ultra-low distortion, constant large volume, upgradingseventh generation class K audio amplifier. Using a newgeneration  K-Chargepump  technology,  efficiencyreaches 93%, power amplifier’s overall efficiency is up to80%, greatly prolong the mobile phone usage time. TheAW87317 noise floor is as low as to 53μV, with 97dBhigh signal-to-noise-ratio(SNR). The ultra-low distortion0.008% and unique no-crack-noise (NCN) technologybrings high quality music enjoyment.AW87317 has 0.6W, 0.8W, 1W and 1.2W four selectablespeaker-guard output power levels, recommended usingrated power of 0.5W and above speakers. AW87317integrated unique NCN technology, the output powercannot drop along with lithium battery voltage lowerdown. Within lithium battery voltage range (3.3V--4.35V),output power is constant, preventing the voice becomessmaller and smaller during usage of cell phone.AW87317 supports speaker and receiver two-in-oneapplication. In receiver mode, the output noise is as lowas to 22uV, amplifier is in class D mode, powered byVBAT.

特性 Features

• Low noise： 53μV
• Power amplifier overall efficiency 80%
• Ultra-low distortion： 0.008%
• Speaker and Receiver two-in-one application
• Receiver： 1V/V， Vn=22uV， THD+N=0.025%
• Receiver： 3V/V， Vn=26uV， THD+N=0.025%
• Within Lithium battery voltage range, output power is maintained constant
• Selectable speaker-guard power level： 0.6w， 0.8W，1W， 1.2W
• No-crack-noise (NCN) technology
• Super TDD-Noise suppression
• Excellent pop-click suppression
• One wire pulse control
• High PSRR： -68dB（ 217Hz）
• ESD protection： ±6kV (HBM)
• Small 0.4mm pitch 1.6mm×1.68mm CSP-14package