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首页 > Products > Audio Amplifier IC > Headphone audio amplification class F >Cxaf4107 is a 3W dual channel f-MODE switching function, ultra-low EMI, no filter audio power amplifier chip By default is a class D amplifier At the same time an AB/D pin can easily switch to class AB mode
Cxaf4107 is a 3W dual channel f-MODE switching function, ultra-low EMI, no filter audio power amplifier chip By default is a class D amplifier At the same time an AB/D pin can easily switch to class AB mode

The working voltage is 2.5v-5.5v, and the efficiency of class D amplifier is higher than 90%. The new filter free structure can save the traditional low-pass filter of class D amplifier, thus saving the system cost and PCB space
Ideal for portable applications. The cxaf4107 adopts the unique DRC (dynamic range control) technology, which reduces the distortion caused by wave cutting when high power output

Cxaf4107 is a 3W dual channel f-MODE switching function, ultra-low EMI, no filter audio power amplifier chip By default is a class D amplifier At the same time an AB/D pin can easily switch to class AB mode
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目录o8H嘉泰姆

1.产品概述                       2.产品特点o8H嘉泰姆
3.应用范围                       4.下载产品资料PDF文档 o8H嘉泰姆
5.产品封装图                     6.电路原理图                   o8H嘉泰姆
7.功能概述                        8.相关产品
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一,产品概述(General Description)      o8H嘉泰姆


         CXAF4107是一款3W、双声道F类工作模式切换功能超低 EMI、无需滤波器的 音频功率放大芯片o8H嘉泰姆
         CXAF4107默认情况下是D类放大器,同时通过一个AB/D管脚可以方便地切换为AB类模式,完全消除EMI干扰。工作电压2.5V-5.5V,D类放大器模式下提供高于90%的效率,新型的无滤波器结构可以省去传统D类放大器的输低通滤波器,从而节省了系统成本和PCB空间,是o8H嘉泰姆
便 携 式 应 用 的 理 想 选 择 。CXAF4107采用独有的DRC(Dynamic range control)技术,降低了大功率输出时,由于波形切顶带来的失真,相比同类产品,动态反应o8H嘉泰姆
更加出色。
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     CXAF4107采用SOP-16封装。   o8H嘉泰姆
二.产品特点(Features)
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无滤波的D类/AB类放大器、低静态电流和低EMIo8H嘉泰姆
D类/AB类切换无爆破音o8H嘉泰姆
FM模式无干扰o8H嘉泰姆
优异的爆破声抑制电路o8H嘉泰姆
DRC 动态失真矫正电路o8H嘉泰姆
10% THD+N,VDD=5V,4Ω负载下,提供高达3W的输出功率o8H嘉泰姆
短路电流保护o8H嘉泰姆
欠压保护o8H嘉泰姆
关断电流 < 0.5uAo8H嘉泰姆
多种功率封装模式:SOP-16o8H嘉泰姆
过热保护o8H嘉泰姆
三,应用范围 (Applications)
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蓝牙音箱、USB 音箱o8H嘉泰姆
插卡音箱o8H嘉泰姆
扩音器等o8H嘉泰姆
四,产品资料PDF文档 
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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!o8H嘉泰姆

 QQ截图20160419174301.jpgo8H嘉泰姆

五,电路原理图o8H嘉泰姆


image.pngo8H嘉泰姆

六,产品封装图 (Package)o8H嘉泰姆


image.pngo8H嘉泰姆

No.o8H嘉泰姆

管脚名称o8H嘉泰姆

IOo8H嘉泰姆

功     能o8H嘉泰姆

1o8H嘉泰姆

+OUT_Lo8H嘉泰姆

Oo8H嘉泰姆

通道同向输出o8H嘉泰姆

2o8H嘉泰姆

PGNDLo8H嘉泰姆

-o8H嘉泰姆

左通道电源地o8H嘉泰姆

3o8H嘉泰姆

+OUT_Lo8H嘉泰姆

Oo8H嘉泰姆

左通道反向输出o8H嘉泰姆

4o8H嘉泰姆

PVDDLo8H嘉泰姆

Io8H嘉泰姆

左通道电源o8H嘉泰姆

5o8H嘉泰姆

 

Io8H嘉泰姆

静音控制输入(低电平有效)o8H嘉泰姆

6o8H嘉泰姆

VDDo8H嘉泰姆

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模拟 VDDo8H嘉泰姆

7o8H嘉泰姆

INLo8H嘉泰姆

Io8H嘉泰姆

左通道输入o8H嘉泰姆

8o8H嘉泰姆

VREFo8H嘉泰姆

Io8H嘉泰姆

内部模拟基准源,从 VREF 连接一个旁路电容到地o8H嘉泰姆

9o8H嘉泰姆

MODEo8H嘉泰姆

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MODE 默认为 0,ClassD 模式;MODE=VDD,ClassAB 模式o8H嘉泰姆

10o8H嘉泰姆

INRo8H嘉泰姆

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右通道输入o8H嘉泰姆

11o8H嘉泰姆

GNDo8H嘉泰姆

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模拟地o8H嘉泰姆

12o8H嘉泰姆

 

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系统关断控制(低电平有效)o8H嘉泰姆

13o8H嘉泰姆

PVDDRo8H嘉泰姆

-o8H嘉泰姆

右通道电源o8H嘉泰姆

14o8H嘉泰姆

-OUT_Ro8H嘉泰姆

Oo8H嘉泰姆

右通道反相输出o8H嘉泰姆

15o8H嘉泰姆

PGNDRo8H嘉泰姆

-o8H嘉泰姆

右通道电源地o8H嘉泰姆

16o8H嘉泰姆

+OUT_Ro8H嘉泰姆

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右通道同相输出o8H嘉泰姆

七.功能概述o8H嘉泰姆


1、驱动2Ω和4Ω负载时PCB 布局及补偿调节考虑事项o8H嘉泰姆
有阻抗的负载两端加上交流电压可产生功耗,负载的功耗随运算放大器输出端和负载间的连线(PCB连线o8H嘉泰姆
和金属连线)而变化。连线产生的阻抗消耗是我们不想要的,比如,0.1Ω的连线阻抗可使4Ω负载的功率从2.1W
o8H嘉泰姆

减小到2.0W。当负载阻抗减少时,负载功耗减少的问题更加加重。所以,为能得到高质量的输出功率和较宽o8H嘉泰姆
的工作频率,PCB中输出端与负载的连接应尽量宽。o8H嘉泰姆
 2、最大增益o8H嘉泰姆
 CXAF4107的增益由内部电阻Rf 和Rs 以及外接电阻Ri决定,Rs=6.5kΩ,Rf=195kΩ;用户可以外接 Ri 电阻,o8H嘉泰姆
控制整体的增益。o8H嘉泰姆
八,相关产品                 更多同类产品.......
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F类(AB类/D类可选)音频放大ICo8H嘉泰姆

型号o8H嘉泰姆

电压范围o8H嘉泰姆

 静态电流o8H嘉泰姆

 输出功率o8H嘉泰姆

 静态输出电压o8H嘉泰姆

 纹波抑制比o8H嘉泰姆

 封装o8H嘉泰姆

CXAF4103o8H嘉泰姆

2V-5.5Vo8H嘉泰姆

 

5W/Vcc=5V Rl=2ohmo8H嘉泰姆

   

ESOP8o8H嘉泰姆

CXAF4104o8H嘉泰姆

2.5V-8.5Vo8H嘉泰姆

20mAo8H嘉泰姆

8W/Vcc=7.4V Rl=4ohmo8H嘉泰姆

 

60dBo8H嘉泰姆

ESOP8o8H嘉泰姆

CXAF4105o8H嘉泰姆

5V-10Vo8H嘉泰姆

15mAo8H嘉泰姆

10W/Vcc=9V Rl=4ohmo8H嘉泰姆

 

80dBo8H嘉泰姆

ESOP8o8H嘉泰姆

CXAF4106o8H嘉泰姆

3V-9Vo8H嘉泰姆

10.5mAo8H嘉泰姆

10W/Vcc=9V Rl=4ohmo8H嘉泰姆

 

91dBo8H嘉泰姆

ESOP8o8H嘉泰姆

CXAF4107o8H嘉泰姆

2.5V-5.5Vo8H嘉泰姆

16mAo8H嘉泰姆

2*3W/Vcc=5V Rl=4ohmo8H嘉泰姆

10mV/Vcc=6Vo8H嘉泰姆

65dBo8H嘉泰姆

SOP16o8H嘉泰姆

带升压的F类(AB类/D类可选)音频放大ICo8H嘉泰姆

型号o8H嘉泰姆

电压范围o8H嘉泰姆

 静态电流o8H嘉泰姆

 输出功率o8H嘉泰姆

 静态输出电压o8H嘉泰姆

 纹波抑制比o8H嘉泰姆

 封装o8H嘉泰姆

CXAF4101o8H嘉泰姆

2.0V-5.5Vo8H嘉泰姆

 

5W/Vcc=3.7V Rl=2ohmo8H嘉泰姆

   

ESOP16o8H嘉泰姆

CXAF4102o8H嘉泰姆

2.0V-5.5Vo8H嘉泰姆

 

6W/Vcc=3.7V Rl=2ohmo8H嘉泰姆

   

ESOP16o8H嘉泰姆