CXAR4177 CXAR4177A是一款立体声、固定增益和无盖耳机驱动程序，提供TQFN4x4 20针、TQFN3x3 16针（CXAR4177A）或TSSOP-16封装。双电源电压提供更高的效率和更好的功率纹波抑制。CXAR4177 CXAR4177A采用接地参考输出，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。除了这些功能外，启动时间快、封装体积小，使CXAR4177 CXAR4177A成为便携式多媒体设备的理想选择。此外，CXAR4177 CXAR4177A还配备了其他功能。例如，在THD+N=1%时，它能在VDD=3.3V、PVDD=5.0V下驱动200mW至16W，并提供热保护和短路保护。
·不需要输出电容器
·双电源电压（PVDD>VDD）
–电压密度=1.8~5.5V
–PVDD=2.2~5.5伏
·满足VISTA要求
·1%THD+N时的输出功率
-200兆瓦，VDD=3.3伏，PVDD=5.0伏，RL=16瓦
-55mW，VDD=1.8V，PVDD=3.0V，10%THD+N时RL=16W
-270mW，VDD=3.3V，PVDD=5.0V，RL=16W时
-70mW，在VDD=1.8V，PVDD=3.0V，RL=16W时
·所需外部组件更少
·高PSRR:217Hz时80dB
·快速启动时间：120ms
·短路和热保护
·表面贴装组件
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[ CXAR4177 ]"
目录
7.相关产品
产品概述 返回TOP
The CXAR4177 CXAR4177A is a stereo, fixed gain, and cap-free headphone driver which is available in TQFN4x4 20-pin, TQFN3x3 16-pin (CXAR4177A) or TSSOP-16 package. Dual supply voltage provides higher efficiency and better power ripple rejection. The CXAR4177 CXAR4177A is designed with ground-reference output and no 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 start-up time and small package size make the CXAR4177 CXAR4177A an ideal choice for portable multimedia devices. Moreover, the CXAR4177 CXAR4177A is also equipped other features. For example, at THD+N=1%, it is capable of driving 200mW at VDD =3.3V, PVDD =5.0V into 16W. In addition, it provides thermal and short circuit protections.
产品特点 返回TOP
· No Output Capacitor Required
· Dual Supply Voltage (PVDD>VDD)
– VDD =1.8 ~5.5V
– PVDD=2.2 ~ 5.5V
· Meeting VISTA Requirements
· Output Power at 1% THD+N
-200mW, at VDD =3.3V, PVDD =5.0V, RL =16W
-55mW, at VDD =1.8V, PVDD =3.0V, RL =16W at 10% THD+N
-270mW, at VDD =3.3V, PVDD =5.0V, RL =16W
-70mW, at VDD =1.8V, PVDD =3.0V, RL =16W
· Less External Components Required
· High PSRR: 80dB at 217Hz
· Fast Start-Up Time : 120ms
· Short-Circuit and Thermal Protection
· Surface-Mount Package
– TQFN4x4-20B (with Enhanced Thermal Pad)
– TSSOP-16
– TQFN3x3-16 (with Enhanced Thermal Pad) (for CXAR4177A)
· Lead Free and Green Devices Available (RoHS Compliant)
应用范围 返回TOP
· Headsets
· 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
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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 |
|
