• [ CXAR41168 ]"

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目录

1.产品概述       2.产品特点     dpJ嘉泰姆

3.应用范围       4.技术规格书下载（PDF文档）dpJ嘉泰姆

5.产品封装       6.电路原理图  dpJ嘉泰姆

7.相关产品dpJ嘉泰姆

   产品概述 返回TOPdpJ嘉泰姆

     ，CXAR41168可持续输出2.8W并具有10%的THD+N及2.2W并具有1%的THD+N。与传统的AB类放大器相比，CXAR41168具有更高的效率。在工作电压为3.6V时，驱动8Ω扬声器输出400mW效率可达84%。CXAR41168可用于移动电话，耳机，对讲电话和门铃。CXAR41168具有外部可调整的增益，可调节各输入信号的增益，并将各输入信号进行叠加放大。The CXAR41168 is a high efficiency, 2.8W mono class-D audio power amplifier. A low noise, filterless PWM architecture eliminates the output filter, reducing external component count, system cost, and simplifying design. Operating in a single 5V supply, CXAR41168 is capable of driving 4Ω speaker load at a continuous average output of 2.8W/10% THD+N or 2.2W/1% THD+N. The CXAR41168 has high efficiency with speaker load compared to a typical class AB amplifier. With a 3.6V supply driving an 8Ω speaker , the efficiency for a 400mW power level is 84%. In cellular handsets, the earpiece, speaker phone, and melody ringer can each be driven by the CXAR41168. The gain of CXAR41168is externally configurable which allows independent gain control from multiple sources by summing signals from separate sources.

   产品特点 返回TOPdpJ嘉泰姆

●独特的调制方式减少EMI干扰dpJ嘉泰姆

●短路自动恢复dpJ嘉泰姆

●工作电压3.6V，负载8Ω，输出功率400mW效率可达84%dpJ嘉泰姆

●低静态电流和关断电流dpJ嘉泰姆

●工作电压2.5V-5.5VdpJ嘉泰姆

●Shutdown 引脚兼容1.8V 逻辑GPIOdpJ嘉泰姆

●PWM输出级无需滤波器dpJ嘉泰姆

●-68dB PSRR 无需电源稳压器dpJ嘉泰姆

●全差分设计无需RF整形器和旁路电容dpJ嘉泰姆

●改进的CMRR无需使用输入端耦合电容dpJ嘉泰姆

●内部固定250K开关频率dpJ嘉泰姆

●内部集成抑制pop和click噪声电路dpJ嘉泰姆

●8-pin SOP封装dpJ嘉泰姆

●符合RoHS规范及Pb-FreedpJ嘉泰姆

Unique Modulation Scheme Reduces EMI EmissionsdpJ嘉泰姆

Short Circuit Auto-RecoverydpJ嘉泰姆

Efficiency at 3.6V With an 8-
Speaker:dpJ嘉泰姆

− 84% at 400 mWdpJ嘉泰姆

Low Quiescent Current anddpJ嘉泰姆

Shutdown CurrentdpJ嘉泰姆

2.5V to 5.5V Wide Supply VoltagedpJ嘉泰姆

Shutdown Pin Compatible with 1.8V Logic GPIOdpJ嘉泰姆

Optimized PWM Output Stage EliminatesdpJ嘉泰姆

LC Output FilterdpJ嘉泰姆

Improved PSRR (−68 dB) Eliminates Need for adpJ嘉泰姆

Voltage RegulatordpJ嘉泰姆

Fully Differential Design Reduces RF RectificationdpJ嘉泰姆

and Eliminates Bypass CapacitordpJ嘉泰姆

Improved CMRR Eliminates Two InputdpJ嘉泰姆

Coupling CapacitorsdpJ嘉泰姆

Internally Generated 250-kHz SwitchingdpJ嘉泰姆

FrequencydpJ嘉泰姆

Integrated Pop and Click Suppression CircuitrydpJ嘉泰姆

Available in SOP-8 PackagedpJ嘉泰姆

RoHS compliant and 100% Lead(Pb)-FreedpJ嘉泰姆

Halogen-FreedpJ嘉泰姆

   应用范围 返回TOPdpJ嘉泰姆

●无线移动电话和PDA 
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Ideal for Wireless or cellular Handsets and PDAsdpJ嘉泰姆

   技术规格书（产品PDF) 返回TOP dpJ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！dpJ嘉泰姆

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产品封装图 返回TOPdpJ嘉泰姆

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电路原理图 返回TOPdpJ嘉泰姆

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◀ 上一篇:CXAR41167高效率通道有2.5W功率输出的双声道D类音频放大器低噪声filterless PWM的架构无需输出滤波器两个独立的关断(Shutdown)控制信号单独关闭左声道或右声道自动恢复的短路保护以及过热关断保护机制

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下一篇▶:CXAR41169单声道无破音低EMI2.8W无需滤波器的D类音频功率放大器有D类的84%高效率有独特的无破音功能通过检测输出的破音失真自动调整系统增益无破音功能为4Ω负载提供2.8W功率输出