CXAR4181是一款立体声、固定增益、单电源和无盖耳机驱动程序，可在WLCSP1.6x1.6-12包中提供。CXAR4181是接地参考输出，无需输出电容器进行直流闭锁。消除输出电容器的优点是节省成本，消除元件高度，提高低频响应。内部固定增益设置（-1.5V/V）可以最大限度地减少外部元件数量，节省PCB空间。高PSRR提高了对噪声和RF整流的抗扰度。LDO是解决传声器检测电路需求的最佳方案，可以降低BOM的总成本。CXAR4181能够在3.6V至16W负载下驱动50mW，并提供热保护。
·工作电压：2.3V~5.5V
·供电电流-VDD=3.6V时，I DD=1mA
·低关断电流
-VDD=3.6V时，I DD=5mA
·接地参考输出
-无需输出电容器（用于直流闭锁）
-节省PCB空间
-降低BOM成本
-改善低频响应
·VDD=3.6V时输出功率50mW/Ch转16W
·高PSRR:217Hz时80dB
·快速启动时间：4ms
·集成De-pop电路
·热保护
·麦克风检测电路用集成LDO（低压差调节器）（1.9V）
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[ CXAR4181 ]
目录
7.相关产品
产品概述 返回TOP
The CXAR4181 is a stereo, fixed gain, single supply, and cap-free headphone driver, which is available in a WLCSP1.6x1.6-12 package. The CXAR4181 is ground-reference output, and no need the output capacitors for DC blocking. The advantages of eliminating the output capacitor are saving the cost, eliminating component height, and improving the low frequency response. The internal fixed gain setting (-1.5V/V) can minimize the external component counts and save the PCB space. High PSRR provides increased immunity to noise and RF rectification. LDO is the best solution for microphone detection circuit requirement, and it can lower the total BOM costs. The CXAR4181 is capable of driving 50mW at 3.6V into16W load, and provides thermal protection.
产品特点 返回TOP
· Operating Voltage: 2.3V~5.5V
· Supply Current - I DD =1mA at VDD =3.6V
· Low Shutdown Current
- I DD =5mA at VDD =3.6V
· Ground Reference Output
- No Output Capacitor Required (for DC Blocking)
- Save the PCB Space
- Reduce the BOM Costs
- Improve the Low Frequency Response
· Output Power 50mW/Ch into 16W at VDD =3.6V
· High PSRR: 80dB at 217Hz
· Fast Start-Up Time: 4ms
· Integrate the De-pop Circuitry
· Thermal Protection
· Integrated LDO (Low Dropout Regulator) for Microphone Detection Circuit (1.9V)
· Surface-Mount Packaging WLCSP1.6x1.6-12
· Lead Free and Green Devices Available (RoHS Compliant)
应用范围 返回TOP
· Handsets
· PDAs
· Portable Multimedia Devices
· Notebooks
技术规格书（产品PDF) 返回TOP
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！
产品封装图 返回TOP
电路原理图 返回TOP
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Audio Products > Headphone Amplifier |
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Part_No |
Package |
VDD Voltage (V) |
IDD, Supply Current (mA) |
TSTART-UP(uS) |
Output Power RL=32W (mW) |
Output Power RL=2.5KW (mW) |
Total Harmonic Distortion Plus Noise (%) |
Power Supply Rejection Ratio (dB) |
Output Noise (uV) |
Signal to Noise Ratio (dB) |
Output Offset Voltage (mV) |
|
|
min |
max |
|||||||||||
|
TSSOP14/SOP14 |
3 |
3.6 |
10 |
500 |
20 |
2.1 |
0.001 |
80 |
8 |
108 |
5 |
|
|
TSSOP14/SOP14 |
2.3 |
5.5 |
10 |
500 |
40 |
2.1 |
0.001 |
80 |
8 |
108 |
5 |
|
|
TQFN4x4-20A/ TSSOP16/SOP14 |
2.3 |
4.5 |
5 |
500 |
NA |
2.1 |
0.002 |
90 |
10 |
105 |
8 |
|
|
TQFN4x4-20B/TSSOP-16 |
2.3 |
4.5 |
5 |
16000 |
NA |
2.1 |
0.003 |
80 |
15 |
102 |
8 |
|
|
TQFN4x4-20B/TSSOP-16/TQFN3x3-16 |
1.8 |
5.5 |
2 |
120 |
150 |
NA |
0.03 |
82 |
15 |
95 |
5 |
|
|
TSSOP-16 |
||||||||||||
|
WLCSP-16 |
2.4 |
5.5 |
2.5 |
4000 |
22 |
NA |
0.02 |
90 |
7 |
95 |
0.5 |
|
|
WLCSP2x2-16 |
1.8 |
4.5 |
5 |
120 |
145 |
NA |
0.02 |
75 |
15 |
100 |
5 |
|
|
WLCSP1.6x1.6-12/TDFN3x3-12 |
2.3 |
5.5 |
1 |
4000 |
60 |
NA |
0.03 |
80 |
27 |
95 |
8 |
|
|
WLCSP1.6x 1.6-12 |
2.3 |
5.5 |
1 |
4000 |
60 |
NA |
0.03 |
80 |
27 |
95 |
8 |
|
|
MSOP-10P |
2.3 |
5.5 |
10 |
500 |
60 |
2.1 |
0.001 |
80 |
8 |
108 |
5 |
|
