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
[ CXAR41194 ]
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产品概述 返回TOP
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 8.5VPP 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
• 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 VN = 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
Set-Top Box
LCD TV
Blue-Ray DVD-Players
Home Theater in a Box
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产品封装图 返回TOP
电路原理图 返回TOP
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音频驱动器 |
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|
Part Number |
CH |
SHDN |
VCC(Min) (V) |
VCC(Max) (V) |
Differential Input |
Output Voltage @ VCC=5V(Vrms) |
Output Voltage @VCC=3.3V(Vrms) |
Package |
|
Stereo |
L |
3 |
5.5 |
Y |
3.05 |
2.05 |
TSSOP-14 |
|
|
Stereo |
L |
3 |
5.5 |
Y |
3.05 |
TSSOP-14 |
||
|
Stereo |
L |
3 |
5.5 |
N |
3.05 |
2.05 |
MSOP-10 |
|
|
Stereo |
L |
3 |
5.5 |
N |
3.05 |
2.05 |
MSOP-10(EP) |
|
|
Stereo |
L |
3 |
3.6 |
Y |
2.05 |
TSSOP-14 |
||
|
Stereo |
L |
3 |
5.5 |
Y |
3.05 |
2.05 |
TSSOP-20 |
|
|
stereo |
L |
3 |
5.5 |
N |
3.05 |
2.05 |
TSSOP-16 |
|
|
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