CXAR4179是一款立体声、固定增益、无盖耳机驱动程序，可在WLCSP2x2-16软件包中使用。CXAR4179是一个接地参考输出，不需要输出电容器进行直流阻塞。消除输出电容器的优点是节省了成本、PCB的空间和元件高度。内置增益设置可以最小化外部元件数量并节省PCB空间。高PSRR提高了对噪声和RF整流的抗扰度。除了这些特性之外，CXAR4179启动速度快、封装体积小，是便携式多媒体设备的理想选择。此外，CXAR4179还配备了其他功能。例如，它能够在THD+N=10%的情况下，以3.3V的电压将100mW驱动至16W，并提供热保护和短路保护。
·不需要输出电容器
·工作电压：1.8V~4.5V
·供电电流
–VDD=3.3V时，I DD=5mA
·低关断电流
–VDD=3.3V时，I DD=1毫安
·满足VISTA要求
·1%THD+N时的输出功率
–70兆瓦，VDD=3.3伏，10%THD+N时RL=16瓦
–100兆瓦，VDD=3.3伏，RL=16瓦
·所需外部组件更少
·217Hz时高PSRR:78dB
·短路和热保护
·±8KV ESD性能
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[ CXAR4179 ]
目录
7.相关产品
产品概述 返回TOP
The CXAR4179 is a stereo, fixed gain, Cap-Free headphone driver which is available in a WLCSP2x2-16 package. The CXAR4179 is a ground-reference output, and doesn’t need the output capacitors for DC blocking. The advantages of eliminating the output capacitor are saving the cost, PCB’s space, and component height. The built-in gain setting can minimize the external component counts and save the PCB space. High PSRR provides increased immunity to noise and RF rectification. In addition to these features, a fast startup time and small package size make the CXAR4179 an ideal choice for portable multimedia device. Moreover, the CXAR4179 is also equipped other features. For example, it is capable of driving 100mW at 3.3V into 16W, at THD+N=10% and provides thermal and short circuit protection.
产品特点 返回TOP
· No Output Capacitor Required
· Operating Voltage: 1.8V~4.5V
· Supply Current
– I DD =5mA at VDD =3.3V
· Low Shutdown Current
– I DD =1mA at VDD =3.3V
· Meeting VISTA Requirements
· Output Power at 1% THD+N
– 70mW, at VDD =3.3V, RL = 16W at 10% THD+N
– 100mW, at VDD =3.3V, RL = 16W
· Less External Components Required
· High PSRR: 78dB at 217Hz
· Short-Circuit and Thermal Protection
· ± 8KV ESD Performance
· Surface-Mount Packaging
– WLCSP2x2-16
· 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
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产品封装图 返回TOP
电路原理图 返回TOP
相关芯片选择指南 返回TOP 更多同类产品......
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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 |
|
◀ 上一篇:CXAR4178改善低频响应无需输出电容器进行直流闭锁高PSRR提高对噪声和RF整流的抗扰度以3.6V的电压将25mW的功率驱动到16W的负载中立体声固定增益单电源无盖耳机驱动程序
下一篇▶:CXAR4180高PSRR提高了对噪声和RF整流的抗扰度在3.6V电压下将50mW驱动至16W负载立体声固定增益单电源和无盖耳机驱动程序改善低频响应集成De-pop电路
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