AW87349CSR数据手册Awinic中文资料规格书

描述 Description

AW87349 is specifically designed to improve the musical output dynamic range, enhance overall sound quality. It is a new high efficiency, low noise, constant large volume, 3rd generation Smart K audio amplifier. AW87349 integrates AWINIC’s proprietary Triple-Level Triple-Rate AGC audio algorithm, effectively eliminating music noise and improving sound quality and volume. AW87349 integrated high voltage DO-Chargepump technology with efficiency up to 90%, significantly improving the dynamic range of the music output. AW87349 noise floor is as low as to 38μV at speaker mode, with 102dB high signal-to-noise-ratio(SNR). The ultra-low distortion 0.02% and unique Triple-Level Triple-Rate AGC technology bring high quality music enjoyment.AW87349 supports speaker(SPK) and high power receiver (RCV) stereo applications, supports speaker and receiver 2-in-1 applications, class AB/D receiver optional. Class AB receiver has 9μV ultra-low noise and 95dB high PSRR performance to completely suppress TDD-noise.AW87349 controls internal registers through the I2C interface. Register parameters include chargepump output voltage, power amplifier gain, Triple-Level Triple-Rate AGC parameters, etc.AW87349 built-in over current protection, over temperature protection and short circuit protection function, effectively protect the chip. AW87349 features small 2.545mm*2.075mm CSP-18B package.

特性 Features

• Triple-Level Triple-Rate AGC algorithm to effectively eliminate noise, pure sound quality
• Innovation high efficient, large drive high voltage 2X DO- Chargepump, efficiency up to 90%
• Highest voltage：8.5V
• Hardware compatible with AW87319CSR
• Low noise：
• 9 μV (Class AB Receiver THD+N=0.4%)
• 16 μV (Class D Receiver THD+N=0.02%)
• 38 μV (Class K Speaker THD+N=0.02%)
• 38 μV (FM Mode Class AB Speaker THD+N=0.28%)
• Support high power receiver stereo application
• Selectable speaker-guard power level：
• 0.5W~1.5W@8ohm, 100mW/step
• Selectable receiver-guard power level：
• 0.1W~1.5W@8ohm,100mW/step    0.025W~0.375W@32ohm, 25mW/step
• Output Power：3W@8Ω  3.5W@6Ω
• Speaker & AB/D receiver 2-in-1 mode application
• Shutdown current：0.1μA
• Super TDD-Noise suppression
• Excellent pop-click suppression
• Support 1.8V logic I2C control
• High PSRR：95dB（217Hz）
• Small 2.545mm*2.075mm CSP-18B package