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首页 > 产品中心 > 音频放大IC > D类音频功放电路 >CXAR41247 CXAR41248是可调功率限制功能的高效立体声D类音频放大器四个可选择的固定增益设置内部振荡器带自动恢复选项的短路保护扬声器保护的可调功率限制功能带自动恢复的超温保护
CXAR41247 CXAR41248是可调功率限制功能的高效立体声D类音频放大器四个可选择的固定增益设置内部振荡器带自动恢复选项的短路保护扬声器保护的可调功率限制功能带自动恢复的超温保护
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CXAR41247 CXAR41248是一款具有可调功率限制功能的高效立体声D类音频放大器。扬声器驱动器在4.5V~26V电源电压下工作,模拟电路在5V电源电压下工作。在24伏电源电压下,可在1%THD+N范围内将20W/CH输出功率送入8Ω扬声器,播放音乐时无需外部散热片。CXAR41247 CXAR41248提供并行BTL(单声道)应用,在24伏电源电压下可将40W输出功率送入4Ω扬声器。可调功率限制功能允许用户设置低于5V一半的电压轨,以限制通过扬声器的电流量。输出直流检测可防止扬声器因长期电流应力而损坏。CXAR41247 CXAR41248为无过滤器应用程序提供了优异的EMC性能。输出短路和过温保护具有自动恢复功能。
内置LDO扬声器驱动器的单电源电压为4.5V~26V,其他为5V输出
来自24伏供电BTL模式的扬声器电源:20W/CH进入8Ω@<1%THD+N PBTL模式:40W/CH进入4Ω@<10%THD+N
来自12V供电BTL模式的扬声器电源:10W/CH进入8Ω@10%THD+N
 88%的D级高效运行,无需散热器差分输入
四个可选择的固定增益设置
内部振荡器
带自动恢复选项的短路保护
欠压检测
过电压保护
弹出“noise”并单击“noise reduction”
扬声器保护的可调功率限制功能
扬声器保护输出直流检测
无过滤器操作
带自动恢复的超温保护
卓越的EMC性能

CXAR41247 CXAR41248是可调功率限制功能的高效立体声D类音频放大器四个可选择的固定增益设置内部振荡器带自动恢复选项的短路保护扬声器保护的可调功率限制功能带自动恢复的超温保护
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1.产品概述       2.产品特点     WSU嘉泰姆

3.应用范围       4.技术规格书下载(PDF文档)WSU嘉泰姆

5.产品封装       6.电路原理图  WSU嘉泰姆

7.相关产品WSU嘉泰姆

   产品概述 返回TOPWSU嘉泰姆


     The CXAR41247 CXAR41248 is a high efficiency stereo class-D audio amplifier with adjustable power limit function. The loudspeaker driver operates from 4.5V~26V supply voltage and analog circuit operates at 5V supply voltage. It can deliver 20W/CH output power into 8Ω loudspeaker within 1% THD+N at 24V supply voltage and without external heat sink when playing music.CXAR41247 CXAR41248 provides parallel BTL (Mono)application, and it can deliver 40W into 4Ω loudspeaker at 24V supply voltage. The adjustable power limit function allows user to set a voltage rail lower than half of 5V to limit the amount of current through the speaker. Output DC detection prevents speaker damage from long-time current stress. CXAR41247 CXAR41248 provides superior EMC performance for filter-free application. The output short circuit and over temperature protection include auto-recovery feature.

   产品特点 返回TOPWSU嘉泰姆


 Single supply voltage 4.5V ~ 26V for loudspeaker driver Built-in LDO output 5V for others WSU嘉泰姆

 Loudspeaker power from 24V supply BTL Mode: 20W/CH into 8Ω @<1% THD+N PBTL Mode: 40W/CH into 4Ω @<10% THD+N WSU嘉泰姆

 Loudspeaker power from 12V supply BTL Mode: 10W/CH into 8Ω @10% THD+N WSU嘉泰姆

 88% efficient Class-D operation eliminates need for heat sink  Differential inputs WSU嘉泰姆

 Four selectable, fixed gain settings WSU嘉泰姆

 Internal oscillator WSU嘉泰姆

 Short-Circuit protection with auto recovery option WSU嘉泰姆

 Under-Voltage detection WSU嘉泰姆

 Over-Voltage protection WSU嘉泰姆

 Pop noise and click noise reduction WSU嘉泰姆

 Adjustable power limit function for speaker protection WSU嘉泰姆

 Output DC detection for speaker protection WSU嘉泰姆

 Filter-Free operation WSU嘉泰姆

 Over temperature protection with auto recovery WSU嘉泰姆

 Superior EMC performanceWSU嘉泰姆

   应用范围 返回TOPWSU嘉泰姆


 TV audio WSU嘉泰姆

 Boom-Box WSU嘉泰姆

 Powered speaker WSU嘉泰姆

 Monitors WSU嘉泰姆

 Consumer Audio EquipmentWSU嘉泰姆

   技术规格书(产品PDF) 返回TOP WSU嘉泰姆


     需要详细的PDF规格书请扫一扫微信联系我们,还可以获得免费样品以及技术支持!WSU嘉泰姆

 QQ截图20160419174301.jpgWSU嘉泰姆

产品封装图 返回TOPWSU嘉泰姆


image.pngWSU嘉泰姆

电路原理图 返回TOPWSU嘉泰姆


image.pngWSU嘉泰姆

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