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1.产品概述       2.产品特点     nBw嘉泰姆

3.应用范围       4.技术规格书下载（PDF文档）nBw嘉泰姆

5.产品封装       6.电路原理图  nBw嘉泰姆

7.相关产品nBw嘉泰姆

   产品概述 返回TOPnBw嘉泰姆

      CXAR41165是一款高效率，双声道全桥式驱动（BTL），具有耳机输出的D类音频放大器。在工作电压为5V时，CXAR41165每个通道可向4Ω负载连续输出2.8W的功率并具有10%的THD+N。CXAR41165其内部采用64阶音量控制电路，扬声器增益范围为-70dB 到 20dB，耳机增益范围为-80dB 到to 3.5dB。AGC可以检测出由于输入信号过大而引起的输出信号clip并自动抑制clip。此外，AGC可以适应由电池供电电压降低引起的的输出clip。新型无滤波架构的采用使得CXAR41165可以直接驱动扬声器，从而降低了系统功耗和PCB面积。CXAR41165提供短路保护和过温保护，以避免芯片的损毁。CXAR41165采用24-pin SOP封装和20-pin 4×4 TQFN封装。The CXAR41165 is a high efficiency, 2 channel bridged-tied load (BTL), class-D audio power amplifier with headphone output. Operating from a 5V power supply, CXAR41165 is capable of delivering 2.8W/channel of continuous output power to a 4Ω load with 10% THD+N. The CXAR41165 features an advanced 64-step DC volume control which offers a range of speaker gain from -70dB to 20dB and a range of HP gain from -80dB to 3.5dB. The AGC detects output signal clip due to the over level input signal and suppresses it automatically. Moreover the AGC can adapt the output clip caused by power supply voltage down with battery. The new filter-less architecture allows the device to drive the speaker directly, without low-pass output filters, which will save system cost and PCB area. The CXAR41165 also features short-circuit and thermal protection preventing the device from being damaged during a fault condition. The CXAR41165is available in 24-pin SOP and 20-pin 4×4 TQFN package.

   产品特点 返回TOPnBw嘉泰姆

•工作电压：2.7V到5.5VnBw嘉泰姆

•独特的调制方式减少EMI干扰nBw嘉泰姆

•负载4Ω，工作电压5V，单一通道输出功率可达2.8WnBw嘉泰姆

•64步DC音量控制nBw嘉泰姆

•耳机输出功能nBw嘉泰姆

•自动增益控制（AGC）nBw嘉泰姆

•具有过温及短路保护机制nBw嘉泰姆

•集成对Clik和Pop噪声的抑制电路nBw嘉泰姆

•24-pin SOP封装和20-pin TQFN封装nBw嘉泰姆

•符合RoHS规范及Pb-Free，Halogen-FreenBw嘉泰姆

Wide Supply Voltage: 2.7V to 5.5VnBw嘉泰姆

Unique Modulation Scheme Reduces EMI EmissionnBw嘉泰姆

2.8W/ch into an 4
Load From 5V SupplynBw嘉泰姆

64-Step DC Volume ControlnBw嘉泰姆

Headphone Output FunctionnBw嘉泰姆

Auto Gain ControlnBw嘉泰姆

Thermal and Short-Circuit ProtectionnBw嘉泰姆

Integrated Click and Pop SuppressionnBw嘉泰姆

Available in SOP-24 and TQFN-20 PackagesnBw嘉泰姆

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

Halogen-FreenBw嘉泰姆

   应用范围 返回TOPnBw嘉泰姆

•液晶设备/电视机nBw嘉泰姆

•一体机nBw嘉泰姆

•便携式音频播放器nBw嘉泰姆

•笔记本电脑
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LCD Monitors/TVs
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All-in-One PCs
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Portable Audio
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Notebook PCnBw嘉泰姆

   技术规格书（产品PDF) 返回TOP nBw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！nBw嘉泰姆

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产品封装图 返回TOPnBw嘉泰姆

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电路原理图 返回TOPnBw嘉泰姆

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