目录

1.产品概述       2.产品特点     hfu嘉泰姆

3.应用范围       4.技术规格书下载（PDF文档）hfu嘉泰姆

5.产品封装       6.电路原理图  hfu嘉泰姆

7.相关产品hfu嘉泰姆

   产品概述 返回TOPhfu嘉泰姆

      CXAR41164为单声道、无破音、最大输出瓦数可调、高效率的2W D类音频功率放大器，其低噪声的PWM架构消除了输出端滤波器的需求，在减少外围器件数量的同时简化了设计。CXAR41164具有独特的无破音功能，可以通过检测输出的破音失真，自动调整系统增益；此外，通过采用全新的电荷泵结构，可以在手机的整个工作电压（3.3V-4.3V）内，输出功率保持恒定。CXAR41164有0.8W、1W、1.2W三个功率等级，推荐使用额定功率在0.7W及以上的喇叭。CXAR41164的最高效率可达82%，大大延长了智能机的使用时间。CXAR41164提供过流保护、过热保护和输出短路保护、EMI噪声和pop噪声抑制功能。CXAR41164采用纤小的16焊球1.8mm×1.82mm WCSP封装。The CXAR41164 is a high efficiency, low noise, class-D audio power amplifier. A low noise, filterless PWM architecture eliminates the output filter, reducing external component count, system cost, and simplifying design. The power amplifier, having power limit interlock non-clip function, controls gain automatically and prevents output signals from being clipped at the supply voltage. Moreover, CXAR41164 permits an accurate output in the entire supply voltage range of battery (3.3V to 4.3V) with the new architecture of charge pump. CXAR41164has three output power modes: 0.8W, 1W and 1.2W, speakers with rated power of 0.7W or higher is recommended. And with the efficiency up to 82%, CXAR41164increases the working time of the smart phone greatly. Furthermore, CXAR41164also integrates over current and over temperature protection functions, DC output protection function and EMI noise and the pop noise reduction functions. The CXAR41164is available in space-saving 1.8mm×1.82 mm WCSP-16 packages.

   产品特点 返回TOPhfu嘉泰姆

‧工作电压：3V到5Vhfu嘉泰姆

‧独特的无破音功能，最大输出瓦数可调hfu嘉泰姆

‧短路保护及短路结束自动恢复功能hfu嘉泰姆

‧低的静态电流及关断电流hfu嘉泰姆

‧优化的PWM架构减少了输出端LC滤波器的需求hfu嘉泰姆

‧全差分的结构抑制了传导噪声并减少了对旁路电容的需求hfu嘉泰姆

‧过流保护hfu嘉泰姆

‧过温保护hfu嘉泰姆

‧错误输出DC保护hfu嘉泰姆

‧负载8Ω，工作电压4.2V，THD+N<10%，单一通道输出功率可达2Whfu嘉泰姆

‧1.8mm×1.82mm 16-pin WCSP封装hfu嘉泰姆

‧符合RoHS规范及Pb-Free，Halogen-Freehfu嘉泰姆

Unique Modulation Scheme Reduces EMI Emissionshfu嘉泰姆

Unique Non-Clip Function, Variable NCPA, NCPB,hfu嘉泰姆

NCPC, NCPOFF mode Selecthfu嘉泰姆

Short Circuit Auto-Recoveryhfu嘉泰姆

Low Quiescent Current and Shutdown Currenthfu嘉泰姆

Optimized PWM Output Stage Eliminates LC Outputhfu嘉泰姆

Filterhfu嘉泰姆

Fully Differential Design Reduces RF Rectificationhfu嘉泰姆

and Eliminates Bypass Capacitorhfu嘉泰姆

Overcurrent Protection Function (OCP)hfu嘉泰姆

Overtemperature Protection Function (OTP)hfu嘉泰姆

DC Output Protection Function (DCOP)hfu嘉泰姆

Power Limit Functionhfu嘉泰姆

2W 8-
Load at VDD =4.2V, THD+N<10%hfu嘉泰姆

1.8mm×1.82mm WCSP-16 Packagehfu嘉泰姆

RoHS Compliant and 100% Lead(Pb)-Freehfu嘉泰姆

Halogen-Freehfu嘉泰姆

   应用范围 返回TOPhfu嘉泰姆

‧行动电话hfu嘉泰姆

‧便携媒体播放器hfu嘉泰姆

Smart Phones/Cellular Phoneshfu嘉泰姆

Portable Multimedia Playershfu嘉泰姆

   技术规格书（产品PDF) 返回TOP hfu嘉泰姆

     需要详细的PDF规格书请扫一扫微信联系我们，还可以获得免费样品以及技术支持！hfu嘉泰姆

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产品封装图 返回TOPhfu嘉泰姆

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电路原理图 返回TOPhfu嘉泰姆

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