CXAR41197是一个3Vrms弹出/点击自由立体声线路驱动程序，旨在允许删除输出直流阻塞电容器，以减少组件数量和成本。CXAR41197还有一个单轨到轨的5阶视频滤波器，带宽为8MHz，转换速率为35V/μs，工作电压为3.0V到5.5V。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。
CXAR41197能够在5V电源电压下将3Vrms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。CXAR41197具有内置的关闭控制，用于弹出/单击自由打开/关闭控制。CXAR41197的视频驱动器采用了内部电平移位电路，避免了同步脉冲削波，并允许直流耦合输出。
与生成3Vrms输出的传统方法相比，在音频产品中使用CXAR41197可以减少组件计数。CXAR41197不需要大于5V的电源来产生8.5VPP输出，也不需要分轨电源。CXAR41197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3Vrms输出。
CXAR41197有绿色TSSOP-20包装。它在-40℃到+85℃的环境温度范围内工作。
•无盖音频驱动器结构
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=107dB
典型VN=9μVrms
典型THD+N=0.001%（f=1kHz）
•3Vrms输出电压为2.5kΩ负载，5V
供电电压
•支持差分音频信号输入
•出色的SD视频性能
•5阶视频滤波器
•6dB增益视频驱动器
•视频驱动程序可以驱动两个视频加载
•输入电压范围包括接地
•从3.0V到5.5V的单电源供电
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[ CXAR41197 ]"
目录
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产品概述 返回TOP
The CXAR41197 is a 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 CXAR41197 also has a single rail-to-rail 5th-order video filter with a -3dB bandwidth of 8MHz and a slew rate of 35V/μs. It operates from 3.0V to 5.5V power supply. The device is ideal for single supply electronics where size and cost are critical design parameters.
The CXAR41197 is capable of driving 3Vrms into a 2.5kΩ load with 5V 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 CXAR41197 has build-in shutdown control for pop/click-free on/off control. The CXAR41197’s video driver employs an internal level shift circuit that avoids sync-pulse clipping and allows DC-coupled output.
Using the CXAR41197 in audio products can reduce component count compared to traditional methods of generating a 3Vrms output. The CXAR41197 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 CXAR41197 integrates a charge pump to generate a negative supply rail that provides a clean, pop/click-free ground-biased 3Vrms output.
The CXAR41197 is available in Green TSSOP-20 package. It operates over an ambient temperature range of -40℃ to +85℃.
产品特点 返回TOP
• Capless Audio Driver Structure
Eliminates Pop/Clicks
Eliminates Output DC-Blocking Capacitors
Provides Flat Frequency Response from DC to 20kHz
• Low Noise and THD
Typical SNR = 107dB
Typical VN = 9μVrms
Typical THD+N = 0.001% (f = 1kHz)
• 3Vrms Output Voltage into 2.5kΩ Load with 5V
Supply Voltage
• Support Differential Audio Signal Input
• Excellent SD Video Performance
• 5th-Order Video Filter
• 6dB Gain Video Driver
• Video Driver can Drive Two Video Loads
• Input Voltage Range Includes Ground
• Operates from 3.0V to 5.5V Single Power Supply
• Available in Green TSSOP-20 Package
应用范围 返回TOP
Set-Top Box
Communication Devices
LCD TV
Blu-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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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 |
|
