CXAR41192是一个2Vrms到3Vrms的无需点击/弹出立体声线路驱动程序，设计用于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。
CXAR41192能够在3.3V电源电压下将2Vrms驱动至2.5kΩ负载。该器件具有差分输入，并使用支持±1V/V至±10V/V增益范围的外部增益设置电阻器。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。CXAR41192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2Vrms输出的传统方法相比，在音频产品中使用CXAR41192可以减少组件计数。CXAR41192不需要大于3.3V的电源来产生5.6VPP输出，也不需要分轨电源。CXAR41192集成了一个电荷泵，以产生一个负电源轨，提供一个干净的，点击/自由地面偏置2Vrms输出。
CXAR41192有绿色TSSOP-14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=5.5μVrms
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
•差动输入装置
[ CXAR41192 ]
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产品概述 返回TOP
The CXAR41192 is capable of driving 2Vrms into a 2.5kΩ load with 3.3V supply voltage. The device has differential inputs 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 CXAR41192 has build-in shutdown control for pop/click-free on/off control.
Using the CXAR41192 in audio products can reduce component count compared to traditional methods of generating a 2Vrms output. The CXAR41192 doesn't require a power supply greater than 3.3V to generate a 5.6VPP output, nor does the device require a split rail power supply. The CXAR41192 integrates a charge pump to generate a negative supply rail that provides a clean, pop/click-free ground-biased 2Vrms output.
The CXAR41192 is available in Green TSSOP-14 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 = 5.5μVrms
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
• Differential Inpu
应用范围 返回TOP
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
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 |
|
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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