2.5-W/CH 增强3D音效双声道D类音频放大器2.5W Stereo Class-D Audio Power Amplifier with 3D Enhancement CXAR41170 是一款高效率，每个通道具有2.5W功率输出的双声道D类音频放大器，它用一种低噪声filterless PWM的架构，无需输出滤波器。电源电压为5V时，CXAR41170能在输出负载为4Ω的扬声器上，单一

   产品概述 返回TOP2ga嘉泰姆

       CXAR41170 是一款高效率，每个通道具有2.5W功率输出的双声道D类音频放大器，它用一种低噪声filterless PWM的架构，无需输出滤波器。电源电压为5V时，CXAR41170能在输出负载为4Ω的扬声器上，单一通道可以输送出2.5W/10%的输出功率及失真度。CXAR41170具有两个独立的关断(Shutdown)控制信号，可以单独关闭左声道或右声道。利用G0与G1两个接脚，可以选择增益为 6、12、18或是24dB。高电源拒斥比(PSRR)以及全差动设计可以有效抑制噪声以及射频(RF)干扰。CXAR41170能够增强3D音效，提高立体声质量。在实际应用上，左右声道非常的靠近，3D enhancement具有扩大并加强不同频带声音效果的功能。CXAR41170采用TQFN封装，适合行动电话或是可携式行动通讯系统使用。The CXAR41170 is a high efficiency, 2.5W/channel stereo class-D audio power amplifier. A low noise, filterless PWM architecture eliminates the output filter. Operating from a single 5V supply, CXAR41170 is capable of delivering 2.5W/ channel of continuous output power to a 4Ω load with 10% THD+N. The CXAR41170 features independent shutdown controls for each channel. The gain can be selected to 6, 12, 18, or 24 dB utilizing the G0 and G1 gain select pins. High PSRR and differential architecture provide increased immunity to noise and RF rectification. The CXAR41170 also includes 3D audio enhancement that improves stereo sound quality. In devices where the left and right speakers are in close proximity, 3D enhancement affects channel specialization, widening the perceived soundstage. The CXAR41170 is available in space-saving TQFN package, is an idea choice for mobile phones and other portable communication devices.

   产品特点 返回TOP2ga嘉泰姆

2ga嘉泰姆

• 变频调变减少EMI干扰2ga嘉泰姆

• 输出功率(TQFN封装):2ga嘉泰姆

- 负载4Ω，工作电压5V，单一通道输出功率可达2.5W2ga嘉泰姆

- 负载8Ω，工作电压5V，单一通道输出功率可达1.5W2ga嘉泰姆

- 负载8Ω，工作电压3.6V，单一通道输出功率可达750mW2ga嘉泰姆

• 工作电压2.5V到5.5V2ga嘉泰姆

• 左声道或右声道具有单独关断(Shutdown)控制信号2ga嘉泰姆

• 增益选择: 6、12、18或是24 dB2ga嘉泰姆

• 关断(Shutdown)接脚具有内部下拉电阻(Pulldown Resistor=300kΩ)2ga嘉泰姆

• 高PSRR :70dB at 217Hz2ga嘉泰姆

• 快速启动时间: 10ms2ga嘉泰姆

• 操作电压3.6V时，具有4.7mA 低静态电流以及1.5uA关断电流2ga嘉泰姆

• 输出短路以及过热关断保护机制2ga嘉泰姆

• 3D Enhancement功能2ga嘉泰姆

• Space Saving封装:2ga嘉泰姆

- 4mm x 4mm TQFN-24封装2ga嘉泰姆

• 符合RoHS规范及Pb-Free2ga嘉泰姆

􀁺 Unique Modulation Scheme Reduces EMI Emission2ga嘉泰姆

􀁺 Output Power By TQFN Package2ga嘉泰姆

- 2.5W/Ch Into 4Ω at 5V2ga嘉泰姆

- 1.5W/Ch Into 8Ω at 5V2ga嘉泰姆

- 750mW/Ch Into 8Ω at 3.6V2ga嘉泰姆

􀁺 Wide Supply Voltage: 2.5V to 5.5V2ga嘉泰姆

􀁺 Independent Shutdown Control for Each Channel2ga嘉泰姆

􀁺 Selectable Gain of 6,12,18 and 24 dB2ga嘉泰姆

􀁺 Internal Pulldown Resistor On Shutdown Pins2ga嘉泰姆

􀁺 High PSRR :70dB at 217Hz2ga嘉泰姆

􀁺 Fast 10ms Startup Time2ga嘉泰姆

􀁺 Low 4.7mA Quiescent Current at 3.6V Supply and2ga嘉泰姆

1.5μA Shutdown Current2ga嘉泰姆

􀁺 Short-Circuit and Thermal Protection2ga嘉泰姆

􀁺 3D Enhancement2ga嘉泰姆

􀁺 Space Saving Packages2ga嘉泰姆

- 4mm× 4mm TQFN-24 package2ga嘉泰姆

􀁺 RoHS Compliant and 100% Lead(Pb)-Free2ga嘉泰姆

   应用范围 返回TOP2ga嘉泰姆

2ga嘉泰姆

• 无线或移动电话及PDA2ga嘉泰姆

• 可携式音乐拨放器(Portable Audios)2ga嘉泰姆

• 笔记本电脑</p>

􀁺 Wireless or Cellular Handsets and PDAs2ga嘉泰姆

􀁺 Portable Audios2ga嘉泰姆

􀁺 Notebook PC2ga嘉泰姆

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     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</span>！</span>
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