CXAR4194是一款立体声全差分音频功率放大器，带有立体声AB级无盖耳机驱动器和LDO，采用TQFN5X5-32A引脚封装。功率放大器的内置增益设置可以最小化外部元件的数量。对于灵活的应用，增益可以通过增益控制管脚（GAIN0和gain1）设置为4阶、10、12、15.6和21.6dB。功率放大器的全差分结构提供了高的PSRR，提高了抗噪声和RF整流能力。CXAR4194功率放大器能够在VDD=5V时驱动2.4W到4W扬声器，无盖耳机驱动器可以在HVDD=3.3V时提供180mW到16W耳机，LDO的音频编解码器的最大驱动电流为200mA（3.3V）。CXAR4194提供热保护和过电流保护。无盖耳机驱动器消除了输出端的直流阻塞电容，节省了PCB空间。全差分功率放大器、无盖耳机驱动器和LDO的集成是VISTATM需求的最佳解决方案，可以降低BOM的总成本
·满足VISTATM要求
·具有优异射频整流抗扰度的全差分功率放大器
·头机驱动器不需要输出电容器
·用于音频编解码器（3.3V）的集成LDO（低压差调节器）
·功率放大器的可调增益设置
·AV=-1.5V/V耳机驱动器固定增益设置
·快速启动时间·集成降压电路
·高PSRR（电源抑制比）
·热保护和过电流保护
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[ CXAR4194 ]"
目录
7.相关产品
产品概述 返回TOP
The CXAR4194 is a stereo fully differential audio power amplifier with stereo Class-AB cap-free headphone driver and LDO available in a TQFN5X5-32A pins package. The built-in gain setting at power amplifier can minimize the external component counts. For the flexible application, the gain can be set to 4-steps, 10, 12, 15.6, and 21.6dB by gain control pins (GAIN0 andGAIN1). The power amplifier’s fully differential architecture provides high PSRR, increased immunity to noise and RF rectification. The CXAR4194 power amplifiers are capable of driving 2.4W at VDD =5V into 4W speaker, the cap-free headphone drivers can provide 180mW at HVDD =3.3V into 16W headphones, and the LDO has a maximum 200mA(3.3V) driver current for audio codec. The CXAR4194 provides thermal and over-current protections. The cap-free headphone driver eliminates the DC blocking capacitors at outputs, save the PCB space. The integration of fully differential power amplifier, cap-free headphone driver, and LDO is a best solution for VISTATM requirement and it can lower the total BOM costs.
产品特点 返回TOP
· Meeting VISTATM Requirement
· Fully Differential Power Amplifier with Excellent RF Rectification Immunity
· No Output Capacitor Required for Head Phone Driver
· Integrated LDO (Low Dropout Regulator) for Audio Codec (3.3V)
· Adjustable Gain Setting for Power Amplifier
· AV =-1.5V/V Fixed Gain Setting for Headphone Driver
· Fast Start-up Time · Integrated De-Pop Circuitry
· High PSRR (Power Supply Rejection Ratio)
· Thermal and Over-Current Protections
· Less External Components Required · Space Saving Package – TQFN5x5-32A
· Lead Free and Green Devices Available (RoHS Compliant)
应用范围 返回TOP
· LCD Monitor
· Notebook
· Portable DVD
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) |
TSTAR -UP (uS) |
Out. Pow. RL =4(W) |
Output Power RL=8W (W) |
Head- phon Mode Output Powe RL=32W(mW) |
Total Harm. Dist. Plus Noise (%) |
Pow. Sup. Rej. Ratio dB |
Output Noise (uV) |
Sign. to nois Ratio dB |
Output Offset Voltage (mV) |
Digit. Input |
Head phone |
AGC Pow. 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 |
|
