CXAR4185 CXAR4185A CXAR4185B是一个单声道、无滤波器的D类音频放大器，可在WLCSP-9封装中使用。增益可以通过外部输入电阻来设置。高PSRR和差分架构提高了对噪声和RF整流的免疫力。除了这些功能外，CXAR4185 CXAR4185a CXAR4185B的启动时间快、封装体积小，是蜂窝手机和掌上电脑的理想选择。CXAR4185 CXAR4185A CXAR4185B可以在5V时驱动1.5W，或在3.6V时驱动730mW至8W，也可以驱动4W。CXAR4185 CXAR4185A CXAR4185B采用D级架构，与AB级放大器相比，工作效率更高。它适用于电源敏感的应用，如电池供电的设备。无滤波器结构消除了输出滤波器，减少了外部元件数量、板面积和系统成本，简化了设计。此外，CXAR4185 CXAR4185A CXAR4185B提供热保护和过电流保护。
·工作电压：2.4V-5.5V
·效率高达90%
·低供电电流
–VDD=5V时，I DD=2mA
–VDD=3.6V时，I DD=1.6mA
·低关断电流–VDD=5V时，I DD=1mA
·1%THD+N时的输出功率
–2.4W，VDD=5V，RL=4W（WLCSP-9）
–2.1W，VDD=5V，RL=4W时
–1.2W，在VDD=3.6V时，在10%THD+N时，RL=4W
–3.1W，VDD=5V，RL=4W（WLCSP-9）
–2.65W，VDD=5V，RL=4W时
–1.3W，在VDD=3.6V，RL=4W时
·所需外部组件更少
·快速启动时间（4ms）
·高PSRR:217赫兹时80分贝
·热保护和过电流保护
·节省空间包WLCSP-9泵
·提供无铅和绿色设备（符合RoHS）
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[ CXAR4185/A ]
目录
7.相关产品
产品概述 返回TOP
The CXAR4185/A CXAR4185B is a mono, filter-free Class-D audio amplifier available in WLCSP-9 packages. The gain can be set by an external input resistance. High PSRR and differential architecture provide increased immunity to noise and RF rectification. In addition to these features, a fast startup time and small package size make the CXAR4185/A CXAR4185B an ideal choice for both cellular handsets and PDAs. The CXAR4185/A CXAR4185B is capable of driving 1.5W at 5V or 730mW at 3.6V into 8W. It is also capable of driving 4W. The CXAR4185/A CXAR4185Bis designed with a Class-D architecture and operating with highly efficiency compared with Class-AB amplifier. It's suitable for power sensitive application, such as battery powered devices. The filter-free architecture eliminates the output filter, reduces the external component count, board area, and system costs, and simplifies the design. Moreover, the CXAR4185/A CXAR4185B provides thermal and over-current protections.
产品特点 返回TOP
· Operating Voltage: 2.4V-5.5V
· High Efficiency up to 90%
· Low Supply Current
– I DD =2mA at VDD =5V
– I DD =1.6mA at VDD =3.6V
· Low Shutdown Current – I DD =1mA at VDD =5V
· Output Power at 1% THD+N
– 2.4W, at VDD =5V, RL =4W (WLCSP-9)
– 2.1W, at VDD =5V, RL =4W
– 1.2W, at VDD =3.6V, RL =4W at 10% THD+N
– 3.1W, at VDD =5V, RL =4W (WLCSP-9)
– 2.65W, at VDD =5V, RL =4W
– 1.3W, at VDD =3.6V, RL =4W
· Less External Components Required
· Fast Startup Time (4ms)
· High PSRR: 80 dB at 217 Hz
· Thermal and Over-Current Protections
· Space Saving Packages WLCSP-9 Bump
· Lead Free and Green Devices Available (RoHS Compliant)
应用范围 返回TOP
· Mobile Phones
· Handsets
· PDAs
· Portable multimedia devices
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
相关芯片选择指南 返回TOP 更多同类产品......
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Audio Products > Speaker Amplifier |
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Part_No |
Package |
Cla -ss |
VDD Voltage (V) |
IDD, Supply Current (mA) |
TSTART-UP (uS) |
Output Power RL=4W(W) |
Output Power RL=8W (W) |
Head- phone Mode Output Power RL=32W(mW) |
Total Harmoni Dist. Plus Noise (%) |
Power Suppl Rej. Ratio dB |
Output Noise (uV) |
Signal to noise Ratio dB |
Output Offset Voltage (mV) |
Digital Input |
Head phone |
AGC Power limit |
Mute |
|
|
min |
max |
|||||||||||||||||
|
SOP-8 |
AB |
3 |
5.5 |
1 |
0.4 |
1.5 |
0.9 |
NA |
0.15 |
74 |
28 |
NA |
20 |
N |
N |
N |
N |
|
|
MSOP8/P/ TDFN3x3-8 |
AB |
2 |
5.5 |
3 |
0.1 |
2.1 |
1.3 |
NA |
0.05 |
80 |
15 |
105 |
5 |
N |
N |
N |
N |
|
|
WLCSP1.5 x1.5-9A TDFN3x3-8 DFN3x3-8 |
D |
2 |
5.5 |
2 |
NA |
2.45 |
1.45 |
NA |
0.1 |
80 |
100 |
90 |
25 |
N |
N |
N |
N |
|
|
WLCSP1.5 x1.5-9A |
D |
2 |
5.5 |
2 |
NA |
2.45 |
1.45 |
NA |
0.1 |
80 |
100 |
90 |
25 |
N |
N |
N |
N |
|
|
WLCSP1.5 x1.5-9A TDFN3x3-8 |
D |
2 |
5.5 |
3 |
NA |
2.2 |
1.3 |
NA |
0.05 |
70 |
100 |
89 |
20 |
N |
N |
N |
N |
|
|
WLCSP1.2 x1.2-9 TDFN3x3-8 |
D |
2 |
5.5 |
2 |
0 |
2.45 |
1.3 |
NA |
0.1 |
75 |
55 |
90 |
1 |
N |
N |
N |
N |
|
|
WLCSP1.5 x2-12 TQFN4x4-16 |
G |
3 |
5.2 |
4 |
0.6 |
3.6 |
2 |
N/A |
0.06 |
70 |
49 |
97.5 |
2 |
N |
N |
N |
N |
|
|
TSSOP24P TSSOP20P TQFN3x2-16 |
AB |
3 |
5.5 |
6 |
NA |
1.7 |
1.1 |
90 |
0.04 |
85 |
15 |
105 |
5 |
N |
Y |
N |
N |
|
|
TQFN4x4-16 TQFN3x3-16 |
AB |
3 |
5.5 |
6 |
0.7 |
2 |
1.3 |
52 |
0.06 |
61 |
22 |
93 |
10 |
N |
Y |
N |
N |
|
|
TQFN5 x5-20A |
AB |
2 |
5.5 |
6 |
0.1 |
2.1 |
1.3 |
NA |
0.05 |
80 |
15 |
105 |
5 |
N |
N |
N |
N |
|
|
TQFN4x4-28 |
AB |
5 |
5.5 |
18 |
NA |
1.9 |
1.2 |
120 |
0.15 |
70 |
80 |
90 |
10 |
N |
Y |
N |
N |
|
|
TSSOP-28P TQFN5x5-28 |
AB |
5 |
5.5 |
18 |
NA |
1.9 |
1.2 |
120 |
0.15 |
70 |
80 |
90 |
10 |
N |
Y |
N |
N |
|
|
TQFN5 x5-32A |
AB |
5 |
5.5 |
9 |
0 |
1.9 |
1.3 |
120 |
0.07 |
75 |
22 |
100 |
5 |
N |
Y |
N |
N |
|
|
TQFN5 x5-32 |
AB |
5 |
5.5 |
9 |
0 |
1.9 |
1.3 |
120 |
0.07 |
75 |
22 |
100 |
5 |
N |
Y |
N |
N |
|
|
TQFN5 x5-32A |
AB |
5 |
5.5 |
9 |
0 |
1.9 |
1.3 |
120 |
0.07 |
75 |
22 |
100 |
5 |
N |
Y |
N |
N |
|
|
SOP-16P |
AB |
5 |
5.5 |
9 |
1 |
1.8 |
1.3 |
95 |
0.07 |
60 |
20 |
95 |
5 |
N |
Y |
N |
N |
|
|
DIP16/A |
AB |
5 |
5.5 |
9 |
NA |
2 |
1.3 |
95 |
0.07 |
60 |
20 |
95 |
5 |
N |
Y |
N |
N |
|
|
DIP16/A |
AB |
5 |
5.5 |
9 |
NA |
2 |
1.3 |
95 |
0.07 |
60 |
20 |
95 |
5 |
N |
Y |
N |
N |
|
|
DIP16/A |
AB |
3 |
5.5 |
9 |
1.6 |
2 |
1.3 |
95 |
0.09 |
60 |
20 |
95 |
5 |
N |
Y |
N |
N |
|
|
TSSOP-24P |
AB |
5 |
5.5 |
14 |
NA |
1.9 |
1.1 |
90 |
0.05 |
60 |
20 |
95 |
5 |
N |
Y |
N |
N |
|
|
TQFN3x3-16 |
D |
2 |
5.5 |
3 |
0 |
2.3 |
1.34 |
NA |
0.15 |
74 |
100 |
85 |
5 |
N |
N |
N |
N |
|
|
SOP-16P |
D |
3 |
5.5 |
8 |
1.6 |
2.4 |
1.4 |
NA |
0.1 |
55 |
75 |
90 |
20 |
N |
N |
N |
Y |
|
|
SOP-24 DIP-24 QFN4x4-20A |
D |
3 |
5.5 |
7 |
1.6 |
2.2 |
1.3 |
60 |
0.1 |
70 |
75 |
82.5 |
5 |
N |
Y |
A |
Y |
|
|
SOP-16 QDN4x4-20A |
D |
3 |
5.5 |
8 |
1.6 |
2.4 |
1.1 |
NA |
0.1 |
70 |
75 |
85 |
10 |
N |
N |
A |
Y |
|
|
SSOP24/ QFN4x4-20A |
D |
3 |
5.8 |
8 |
1.4 |
2.4 |
1.7 |
70 |
0.1 |
80 |
50 |
92 |
5 |
N |
Y |
A |
Y |
|
|
SSOP24/P SOP-18 QFN4x4-20A |
D |
3 |
5.5 |
5 |
1.2 |
2.3 |
1.3 |
NA |
0.1 |
70 |
80 |
85 |
20 |
N |
N |
A |
Y |
|
|
SSOP-24/P |
D |
3 |
5.5 |
5 |
1.2 |
2.25 |
1.3 |
68 |
0.06 |
60 |
80 |
78 |
20 |
N |
Y |
A |
Y |
|
|
TQFN5x5-32 |
D |
8 |
17 |
18 |
1 |
NA |
12 |
NA |
0.07 |
65 |
230 |
NA |
20 |
N |
N |
N |
Y |
|
|
TSSOP28P QFN4x4-28 |
D |
8 |
26 |
20 |
0 |
NA |
7 |
NA |
0.1 |
NA |
120 |
95 |
15 |
N |
N |
P |
N |
|
|
TSSOP28P QFN4x4-28 |
D |
8 |
26 |
20 |
0 |
NA |
8 |
NA |
0.1 |
NA |
120 |
95 |
15 |
N |
N |
P |
N |
|
|
TSSOP28P QFN4x4-28 |
D |
8 |
26 |
20 |
0 |
NA |
12 |
0.1 |
NA |
65 |
120 |
95 |
15 |
N |
N |
P |
N |
|
|
QFN5.2 x6.2-32 |
D |
8 |
17 |
18 |
1 |
NA |
14 |
NA |
0.05 |
65 |
250 |
NA |
20 |
N |
N |
N |
Y |
|
|
TSSOP28P QFN4x4-28 |
D |
8 |
26 |
20 |
0 |
NA |
15 |
NA |
0.1 |
65 |
160 |
95 |
15 |
N |
N |
P |
N |
|
|
TSSOP28P QFN4x4-28B |
D |
5 |
22 |
17 |
0 |
NA |
15 |
NA |
0.05 |
65 |
130 |
95 |
5 |
N |
N |
P |
N |
|
|
TSSOP28P QFN4x4-28B |
D |
5 |
26 |
17 |
0 |
NA |
17 |
NA |
0.05 |
70 |
120 |
95 |
5 |
N |
N |
P |
N |
|
|
TQFN7 x7-48/P |
D |
9 |
14 |
20 |
NA |
NA |
7.5 |
NA |
0.2 |
85 |
250 |
85 |
20 |
N |
N |
N |
N |
|
|
SOP8/P MSOP8P |
AB |
3 |
5.5 |
7 |
0.4 |
2.3 |
1.3 |
NA |
0.04 |
60 |
28 |
NA |
NA |
N | N | N | N | |
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