CXAR4178是一款立体声、固定增益、单电源、无盖耳机驱动程序,可在WLCSP-16软件包中使用。CXAR4178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。内部可选择的增益(0dB或6dB)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。CXAR4178能够以3.6V的电压将25mW的功率驱动到16W的负载中,并提供热保护
·工作电压:2.4V~5.5V
·供电电流-VDD=3.6V时,I DD=2.1mA
·低关断电流
-VDD=3.6V时,I DD=0.7毫安
·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
·输出功率25mW/Ch在VDD=3.6V时转换为16W,THD+N=0.04%20mW/Ch在VDD=3.6V时转换为32W,THD+N=0.02%
·217Hz时高PSRR:90dB·快速启动时间:4ms
·集成De-pop电路
·热保护
[ CXAR4178 ]
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产品概述 返回TOP
产品特点 返回TOP
· Operating Voltage: 2.4V~5.5V
· Supply Current - I DD =2.1mA at VDD =3.6V
· Low Shutdown Current
- I DD =0.7mA 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 25mW/Ch into 16W at VDD =3.6V,THD+N=0.04% 20mW/Ch into 32W at VDD =3.6V,THD+N=0.02%
· High PSRR: 90dB at 217Hz · Fast Start-Up Time: 4ms
· Integrate the De-pop Circuitry
· Thermal Protection
· Surface-Mount Packaging WLCSP1.6x1.6-16
应用范围 返回TOP
· Handests
· PDAs
· Portable Multimedia Devices
· Notebooks
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产品封装图 返回TOP
电路原理图 返回TOP
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 |
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