CXAR41194直流到20kHz的平坦频率响应低噪音和THD 3Vrms输出电压2.5kΩ负载5V供电电压内置的关闭控制用于弹出/单击自由打开/关闭控制消除输出直流阻塞电容器

CXAR41194是一个2Vrms到3Vrms的无需点击/弹出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器，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。
CXAR41194能够在5V电源电压下将3Vrms驱动至2.5kΩ负载。该器件只有一个输入端，使用外部增益设置电阻，支持±1V/V到±10V/V的增益范围。使用外部增益电阻还可以实现二阶低通滤波器，以补充DAC和SOC转换器。CXAR41194具有内置的关闭控制，用于弹出/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CXAR41194可以减少组件计数。CXAR41194不需要大于5V的电源来产生8.5VPP输出，也不需要分轨电源。CXAR41194集成了一个电荷泵，以产生一个负电源轨，提供一个干净的、无点击/无地面偏置3Vrms输出。
CXAR41194有绿色MSOP-10包装。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
提供从直流到20kHz的平坦频率响应
•低噪音和THD
典型信噪比=114dB
典型VN=5.4μVrms
典型THD+N=0.001%（f=1kHz）
•2Vrms输出电压为2.5kΩ负载，3.3V
供电电压
•3Vrms输出电压为2.5kΩ负载，5V
供电电压
•-40℃至+85℃工作温度范围
•绿色MSOP-10包装

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 CXAR41194 is a 2Vrms to 3Vrms pop/click-free 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 CXAR41194 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 CXAR41194 has build-in shutdown control for pop/click-free on/off control.

Using the CXAR41194 in audio products can reduce component count compared to traditional methods of generating a 3Vrms output. The CXAR41194 doesn't require a power supply greater than 5V to generate an 8.5V_PP output, nor does the device require a split rail power supply. The CXAR41194 integrates a charge pump to generate a negative supply rail that provides a clean, pop/click-free ground-biased 3Vrms output.

The CXAR41194 is available in Green MSOP-10 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 from DC to 20kHz
• Low Noise and THD
   Typical SNR = 114dB
   Typical V_N = 5.4μVrms
   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
• -40℃ to +85℃ Operating Temperature Range
• Available in the Green MSOP-10 Package

   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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音频驱动器
Part Number	CH	SHDN	VCC(Min) (V)	VCC(Max) (V)	Differential  Input	Output Voltage  @ VCC=5V(Vrms)	Output Voltage  @VCC=3.3V(Vrms)	Package
CXAR41192	Stereo	L	3	5.5	Y	3.05	2.05	TSSOP-14
CXAR41193	Stereo	L	3	5.5	Y	3.05		TSSOP-14
CXAR41194	Stereo	L	3	5.5	N	3.05	2.05	MSOP-10
CXAR41195	Stereo	L	3	5.5	N	3.05	2.05	MSOP-10(EP)
CXAR41196	Stereo	L	3	3.6	Y		2.05	TSSOP-14
CXAR41197	Stereo	L	3	5.5	Y	3.05	2.05	TSSOP-20
CXAR41198	stereo	L	3	5.5	N	3.05	2.05	TSSOP-16