目录

1.产品概述       2.产品特点     a4t嘉泰姆

3.应用范围       4.技术规格书下载（PDF文档）a4t嘉泰姆

5.产品封装       6.电路原理图  a4t嘉泰姆

7.相关产品a4t嘉泰姆

   产品概述 返回TOPa4t嘉泰姆

      CXAR41174B 为一款高效率，2通道全桥式驱动（BTL）D类音频放大器。CXAR41174B能够给8Ω的负载提供持续的6W每通道的输出功率，并且THD+N为10%。CXAR41174B其内部采用全差动输入设计，比起单端输入更能有效抑制噪声。利用G0和G1连个引脚，可以选择放大器增益为20，26，32或是36dB。改进的EMI抑制技术使得在输出端可以使用廉价的铁氧体磁珠，同时满足电磁兼容性（EMC）要求。CXAR41174B内置扬声器保护电路，以限制流过扬声器的电流值。同时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。CXAR41174B提供短路保护和过热保护，以避免芯片的损毁。CXAR41174B采用28-pin TSSOP封装。The CXAR41174B is a high efficiency, 2 channel bridged-tied load (BTL), class-D audio power amplifier. Operating from a 10V power supply, CXAR41174B is capable of delivering 6W/ channel of continuous output power to a 8Ω load with 10% THD+N. The CXAR41174B features a differential input architecture offering improved noise immunity over a single-ended (SE) input amplifier. Amplifier gain is internally configured and can be selected to 20, 26, 32 or 36dB utilizing the G0 and G1 gain select pins. Advanced EMI suppression technology enables the use of inexpensive ferrite bead at the outputs while meeting EMC requirements. The speaker protection circuitry is integrated into CXAR41174B to limit the amount of current through the speaker. Meanwhile, the AGC detects output signal clip due to the over level input signal and suppresses it automatically. The CXAR41174 also features short-circuit and thermal protection preventing the device from being damaged during a fault condition. The CXAR41174 is available in thermally efficient 28-pin TSSOP package.

   产品特点 返回TOPa4t嘉泰姆

‧工作电压：5.5V到26Va4t嘉泰姆

‧独特的调制方式减少EMI干扰a4t嘉泰姆

‧负载8Ω，工作电压10V，单一通道输出功率可达6Wa4t嘉泰姆

‧负载4Ω，工作电压10V，单一通道输出功率可达12Wa4t嘉泰姆

‧效率高达87%D类操作模式可以降低热消耗a4t嘉泰姆

‧四种可选增益a4t嘉泰姆

‧全差分输入a4t嘉泰姆

‧扬声器保护电路a4t嘉泰姆

‧自动增益控制（AGC）和功率限制a4t嘉泰姆

‧具有过温及短路保护机制a4t嘉泰姆

‧28-pin TSSOP封装a4t嘉泰姆

‧符合RoHS规范及Pb-Freea4t嘉泰姆

Wide Supply Voltage: 5.5V to 26Va4t嘉泰姆

Unique Modulation Scheme Reduces EMI Emissiona4t嘉泰姆

6-W/ch into an 8-
Load From a 10-V Supplya4t嘉泰姆

12W into a 4-
Mono Load From a 10-V Supplya4t嘉泰姆

87% Efficient Class-D Operation Eliminatesa4t嘉泰姆

Need for Heat Sinksa4t嘉泰姆

Four Selectable, Gain Settingsa4t嘉泰姆

Differential Inputsa4t嘉泰姆

Speaker Protection Circuitrya4t嘉泰姆

Auto Gain Control and Power Clampa4t嘉泰姆

Thermal and Short-Circuit Protectiona4t嘉泰姆

28-pin TSSOP Package with Thermal Pada4t嘉泰姆

RoHS compliant and 100% lead(Pb)-freea4t嘉泰姆

Halogen-Freea4t嘉泰姆

   应用范围 返回TOPa4t嘉泰姆

‧电视
Televisionsa4t嘉泰姆

   技术规格书（产品PDF) 返回TOP a4t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！a4t嘉泰姆

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产品封装图 返回TOPa4t嘉泰姆

aa4t嘉泰姆

电路原理图 返回TOPa4t嘉泰姆

a4t嘉泰姆

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