CXAR41188双音频功率放大器从5.0V电源驱动16Ω扬声器时小于0.1%的失真THD连续平均功率为每个通道提供145mW外部控制低功耗低功耗的主动关机模式内部热关机保护机制主动低停机模式

CXAR41188是一个双音频功率放大器，当它从5.0V电源驱动16Ω扬声器时，能够以小于0.1%的失真（THD）的连续平均功率为每个通道提供145mW。它旨在最大限度地提高移动电话等便携式应用程序的音频性能。便携式应用要求音频功率放大器至少有外部组件，可在单个2.5V至5.5V电源下工作。
CXAR41188具有外部控制、低功耗、低功耗的主动关机模式，以及内部热关机保护机制。
CXAR41188不需要自举电容器或缓冲网络。它最适合于低功耗便携式系统。
为了获得最大的灵活性，CXAR41188提供了一个外部控制的增益（带电阻器）和一个外部控制的开启时间（带旁路电容器）。
CXAR41188有绿色TDFN-2×2-8L包装。它在-40℃到+85℃的环境温度范围内工作。
•主动低停机模式
•145mW输入16Ω负载，从5V电源
THD+N=0.1%典型值（每个通道）
•85mW输入32Ω负载，从5V电源
THD+N=0.1%典型值（每个通道）
•单位增益稳定
•关断电流：0.02μA（典型值）
•2.5V至5.5V操作
•关闭引脚与1.8V逻辑兼容
•点击和弹出减少电路
•-40℃至+85℃工作温度范围

目录

1.产品概述       2.产品特点     

3.应用范围       4.技术规格书下载（PDF文档）

5.产品封装       6.电路原理图  

7.相关产品

   产品概述 返回TOP

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The CXAR41188 is a dual audio power amplifier capable of delivering 145mW per channel of continuous average power with less than 0.1% distortion（THD）when it drives a 16Ω speaker from a 5.0V power supply. It is designed to maximize audio performance in portable applications such as mobile phone. The portable application requires audio power amplifierhas minimum of external components and can operate from a single 2.5V to 5.5V power supply.

CXAR41188 features an externally controlled, active-low, micropower consumption shutdown mode, as well as an internal thermal shutdown protection mechanism.

CXAR41188 does not require bootstrap capacitors or snubber networks. It is optimally suited for low-power portable systems.

For maximum flexibility, the CXAR41188 provides an externally controlled gain (with resistors), as well as an externally controlled turn-on time (with the bypass capacitor).

The CXAR41188 is available in Green TDFN-2×2-8L package. It operates over an ambient temperature range of -40℃ to +85℃.

   产品特点 返回TOP

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   • Active-Low Shutdown Mode
• 145mW into 16Ω Load from 5V Power Supply at
    THD+N = 0.1% Typical (per Channel)
• 85mW into 32Ω Load from 5V Power Supply at
    THD+N = 0.1% Typical (per Channel)
• Unity Gain Stable
• Shutdown Current: 0.02μA (TYP)
• 2.5V to 5.5V Operation
• Shutdown Pin is Compatible with 1.8V Logic
• Click and Pop Reduction Circuitry
• -40℃ to +85℃ Operating Temperature Range
• Green TDFN-2×2-8L Package

   应用范围 返回TOP

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Portable Systems
Headphone Amplifier
Microphone Preamplifier
Notebook Computers
Mobile Phone
PDAs
GPS

   技术规格书（产品PDF) 返回TOP 

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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！

 

产品封装图 返回TOP

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电路原理图 返回TOP

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耳机驱动器
Part Number	CH	SHDN	VCC(Min) (V)	VCC(Max)(V)	Differential Input	Output Power/CH @RL=16Ω(mW)	Output Power/CH @RL=32Ω(mW)	Package
CXAR41184	Stereo	L	2.5	5.5	N	158	87	MSOP-8
CXAR41185	Stereo	H	2.5	5.5	N	158	87	MSOP-8
CXAR41186	Stereo	H	2.7	5.5	Y	132	82	MSOP-10
CXAR41187	Stereo	L	2.7	5.5	N		95	TQFN-4x4-20L
CXAR41188	Stereo	L	2.5	5.5	N	145	85	TDFN-2x2-8L
CXAR41189	Stereo	L	2.7	5.5	N		88	TQFN-3x3-12L
CXAR41190	Stereo	L	2.7	5.5	Y		80	TQFN-3x3-16L
CXAR41191	Stereo	L	2.7	5.1	N		80	TDFN-3x3-10L