9.5 V高能效内嵌DSP的D类音频放大器

TFA9891是一款具有先进的扬声器升压和保护算法的高效率D类音频放大器。它可以在3.6 V电源电压时为8 Ω扬声器提供7.2 W峰值输出功率。内部升压转换器将电源电压提升至9.5 V，为充分提升音质提供了充足余量。\r\n\r\n与竞品解决方案不同，自适应声音激励器算法使用反馈来同时精确计算温度和振幅，从而使TFA9891适应声学环境中的变化。

GOODiX

汇顶科技

9.5 V boosted audio system with adaptive sound maximizer and speaker protection

文件：226.8 Kbytes 页数：24 Pages

恩XP

9.5V升压内嵌DSP的D类音频放大器

The TFA9891 is a high efficiency class-D audio amplifier with a sophisticated speakerboost and protection algorithm. It can deliver 7.2 W peak output power into an 8Ohmspeaker at a supply voltage of 3.6 V. The internal boost converter raises the supplyvoltage to 9.5 V, providing ample headroom for m • Boost Voltage – 9.5 V\n• Output power: 3.6 W (RMS) into 8 Ohm at 3.6 V supply voltage (THD = 1 %)\n• I2C-bus control interface (400 kHz)\n• High efficiency and low power dissipation\n• Sample frequencies from 8 kHz to 48 kHz supported in I2S mode and 16 kHz to 48kHz in PDM mode\n• 3 bit clock/;

恩XP

Product Change Notification

文件：2.81601 Mbytes 页数：221 Pages

Microchip

微芯科技