CXAR41162在5V电源电压下将3Vrms驱动至2.5kΩ负载外部增益设置电阻器支持±1V/V到±10V/V的增益范围20kHz的平坦频率响应低噪音和THD

CXAR41162是一个2Vrms到3Vrms的无需点击的立体声线路驱动程序，其设计允许移除输出直流阻塞电容，以减少组件数量和成本。该器件是单电源电子器件的理想选择，其中尺寸和成本是关键的设计参数。CXAR41162能够在5V电源电压下将3Vrms驱动至2.5kΩ负载。该器件具有单输入，并使用外部增益设置电阻器，其支持±1V/V到±10V/V的增益范围。使用外部增益电阻器还允许实现二阶低通滤波器，以补充DAC和SOC转换器。CXAR41162具有内置的关闭控制，用于弹出和单击自由打开/关闭控制。与生成3Vrms输出的传统方法相比，在音频产品中使用CXAR41162可以减少组件计数。CXAR41162不需要大于5V的电源来产生其8.5VPP输出，也不需要分轨电源。CXAR41162集成了自己的电荷泵，以产生一个负电源轨，提供一个清洁，弹出和点击较少地面偏置3Vrms输出。CXAR41162提供绿色MSOP-10（暴露的Pad）包。它在-40℃到+85℃的环境温度范围内工作。
无盖结构
---消除弹出/点击
---消除输出直流阻塞电容器
---提供20kHz的平坦频率响应
低噪音和THD
---典型信噪比=107dB
---典型VN=8μVrms
---典型THD+N=0.001%（f=1kHz）
2Vrms输出电压为2.5kΩ负载，电源电压为3.3V
3Vrms输出电压为2.5kΩ负载，5V电源电压

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 CXAR41162 is a 2Vrms to 3Vrms Pop&Click-less stereo line driver designed to allow the removal of the output dc-blocking capacitors for reduced component count and cost. The device is ideal for single supply electronics where size and cost are critical design parameters. The CXAR41162 is capable of driving 3Vrms into a 2.5kΩ load with 5V supply voltage. The device has single input and uses external gain setting resistors, that supports a gain range of ±1V/V to ±10V/V. The use of external gain resistors also allows the implementation of a 2nd order low pass filter to compliment DAC's and SOC converters. The CXAR41162 has build-in shutdown control for Pop&Click-free on/off control. Using the CXAR41162 in audio products can reduce component count compared to traditional methods of generating a 3Vrms output. The CXAR41162 doesn't require a power supply greater than 5V to generate its 8.5VPP output, nor does it require a split rail power supply. The CXAR41162 integrates its own charge pump to generate a negative supply rail that provides a clean, pop&click-less ground biased 3Vrms output. The CXAR41162 is available in Green MSOP-10 (Exposed Pad) package. It operates over an ambient temperature range of -40℃ to +85℃.

   产品特点 返回TOP

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  Capless Structure 

---Eliminates Pop/Clicks 

---Eliminates Output DC-Blocking Capacitors 

---Provides Flat Frequency Response DC to 20kHz 

 Low Noise and THD 

---Typical SNR = 107dB 

---Typical VN = 8μVrms 

---Typical THD+N = 0.001% (f = 1kHz) 

 2Vrms Output Voltage into 2.5kΩ Load with 3.3V Supply Voltage 

 3Vrms Output Voltage into 2.5kΩ Load with 5V Supply Voltage

   应用范围 返回TOP

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 Set-Top Box 

 LCD TV 

 Blue-Ray DVD-Players 

 Home Theater in a Box

   技术规格书（产品PDF) 返回TOP 

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产品封装图 返回TOP

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电路原理图 返回TOP

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Audio   Amplifier
Part No.	Package	Description
CXAR41160	SOP14/TSSOP14	Stereo,   Differential Input Cap-Free Line Driver
CXAR41161	SOP14/TSSOP14	Stereo,   Differential Input Cap-Free Line Driver
CXAR41161A	TSSOP24	4 Inputs   Selectable Stereo Class-AB Audio Amplifier
CXAR41162	MSOP10	Capless 2Vrms   to 3Vrms Line Driver with Adjustable Gain