CXAR41111立体声高效率的D级音频放大器无滤波器D类结构消除了外部低通滤波器功率限制功能可以在输出信号超过扬声器极限额定值时保护扬声器D级运行消除了散热器可调功率限制功能加直流保护

CXAR41111立体声高效率的D级音频放大器无滤波器D类结构消除了外部低通滤波器功率限制功能可以在输出信号超过扬声器极限额定值时保护扬声器D级运行消除了散热器可调功率限制功能加直流保护

产品型号：CXAR41111
产品类型：运算放大器
产品系列： D类音频功放电路
产品状态：量产
浏览次数：48 次
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产品简介

CXAR41111是一款立体声、高效率的D级音频放大器，提供TSSOP-28P和QFN4x4-28针封装。与传统的AB类功率放大器相比，D类功率放大器具有更高的效率。无滤波器D类结构消除了外部低通滤波器。内部增益设置可以最小化外部组件计数，对于灵活应用，增益可以通过增益控制ins（GAIN0和GAIN1）设置为4步20、26、32、36dB。功率限制功能可以在输出信号超过扬声器极限额定值时保护扬声器。D类功率放大器的集成是提高功率效率、降低BOM总成本的最佳方案。工作电压从4.5V到22V，CXAR41111功率放大器能在VDD=16V时驱动15W功率进入8W扬声器，并提供热保护和过电流保护。它还具有直流保护功能，以避免破坏扬声器的音圈。它有一个频率选择管脚频率供客户为其系统选择合适的频率（300k、350k、400k）
·电源电压4.5V~22V
·D级运行消除了散热器，降低了电源要求
·20、26、32、36、4步增益设置
·15W/ch输入8W负载，10%THD+N，16 V电源
·从12V电源以10%THD+N的速度将10W/ch转换为8W负载
·从16V电源以10%THD+N的功率将33W转换为4W单负载
·可调功率限制功能加直流保护
·带自动恢复选项的热保护和过电流保护

技术参数

输入电压范围 (VIN)4.5~22VV
输出电流 (IOUT)18
封装类型TSSOP28P/QFN4x4-28B
Topology D类音频功放电路
Control methodOutput Power RL=4W(W) :NA
Quiescent currentOutput Noise (uV) 15
Noise.05
FeaturesOutput Power RL=8W(W)15
Offset voltage5
ApplicationPower Suppl Rej.Ratio dB:65
ProtectionsTSTART-UP (uS):0
Slew rateSignal to noise Ratio Db:95

产品详细介绍

目录

1.产品概述       2.产品特点     

3.应用范围       4.技术规格书下载（PDF文档）

5.产品封装       6.电路原理图  

7.相关产品

   产品概述 返回TOP

The CXAR41111 is a stereo, high efficiency, Class-D audio amplifier available in TSSOP-28P and QFN4x4-28 pins packages. The Class-D power amplifier has higher efficiency compare to the tradition Class-AB power amplifier. The filter free Class-D architecture eliminates the external low pass filters. The internal gain setting can minimum the external component counts, and for the flexible application the gain can be set to 4-step 20, 26, 32, 36dB by gain control ins (GAIN0 and GAIN1). The Power limit function can protection the speaker when output signal excess the speaker limit rating. The integration of Class-D power amplifier is a best solution for power efficiency and lower the total BOM costs. The operating voltage is from 4.5V to 22V. The CXAR41111 power amplifiers are capable of driving 15 W at VDD=16V into 8W speaker, and provides thermal and over-current protections. It also has DC protection function to avoid destroy the speaker voice coil. It has a frequency selection pin FREQ for customer to choose suitable frequency (300k, 350k, 400k) for their system.

   产品特点 返回TOP

· Supply Voltage is 4.5V ~ 22V 

· Class D operation eliminates heat sink & reduce power supply requirement 

· 20,26, 32, 36, 4 steps gain setting 

· 15W/ch into an 8W Loads at 10% THD+N from a 16-V supply 

· 10W/ch into 8W Loads at 10% THD+N from a 12V supply 

· 33W into a 4W Mono Load at 10% THD+N from a 16V Supply 

· Adjustable Power Limit function plus DC Protection 

· Thermal and Over-Current Protections with AutoRecovery option 

· TSSOP-28P with thermal pad packages 

· QFN4x4-28B with thermal pad packages

   应用范围 返回TOP

· LCD Monitor 

· AIO

   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！

 QQ截图20160419174301.jpg

产品封装图 返回TOP

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电路原理图 返回TOP

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相关芯片选择指南 返回TOP                  更多同类产品......

Audio Products > Speaker Amplifier

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

CXAR4183

SOP-8

AB

3

5.5

1

0.4

1.5

0.9

NA

0.15

74

28

NA

20

N

N

N

N

CXAR4184

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

CXAR4185/A

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

CXAR4185B

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

CXAR4186/A

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

CXAR4187

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

CXAR4188

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

CXAR4189/A

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

CXAR4190/A

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

CXAR4191

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

CXAR4192

TQFN4x4-28

AB

5

5.5

18

NA

1.9

1.2

120

0.15

70

80

90

10

N

Y

N

N

CXAR4193

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

CXAR4194

TQFN5

x5-32A

AB

5

5.5

9

0

1.9

1.3

120

0.07

75

22

100

5

N

Y

N

N

CXAR4195

TQFN5

x5-32

AB

5

5.5

9

0

1.9

1.3

120

0.07

75

22

100

5

N

Y

N

N

CXAR4196

TQFN5

x5-32A

AB

5

5.5

9

0

1.9

1.3

120

0.07

75

22

100

5

N

Y

N

N

CXAR4197

SOP-16P

AB

5

5.5

9

1

1.8

1.3

95

0.07

60

20

95

5

N

Y

N

N

CXAR4198

DIP16/A

AB

5

5.5

9

NA

2

1.3

95

0.07

60

20

95

5

N

Y

N

N

CXAR4199

DIP16/A

AB

5

5.5

9

NA

2

1.3

95

0.07

60

20

95

5

N

Y

N

N

CXAR41100

DIP16/A

AB

3

5.5

9

1.6

2

1.3

95

0.09

60

20

95

5

N

Y

N

N

CXAR41101/A

TSSOP-24P

AB

5

5.5

14

NA

1.9

1.1

90

0.05

60

20

95

5

N

Y

N

N

CXAR41102

TQFN3x3-16

D

2

5.5

3

0

2.3

1.34

NA

0.15

74

100

85

5

N

N

N

N

CXAR41103

SOP-16P

D

3

5.5

8

1.6

2.4

1.4

NA

0.1

55

75

90

20

N

N

N

Y

CXAR41103A

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

CXAR41103B

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

CXAR41103C

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

CXAR41104

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

CXAR41105

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

CXAR41106

TQFN5x5-32

D

8

17

18

1

NA

12

NA

0.07

65

230

NA

20

N

N

N

Y

CXAR41107

TSSOP28P

QFN4x4-28

D

8

26

20

0

NA

7

NA

0.1

NA

120

95

15

N

N

P

N

CXAR41107A

TSSOP28P

QFN4x4-28

D

8

26

20

0

NA

8

NA

0.1

NA

120

95

15

N

N

P

N

CXAR41108

TSSOP28P

QFN4x4-28

D

8

26

20

0

NA

12

0.1

NA

65

120

95

15

N

N

P

N

CXAR41109

QFN5.2

x6.2-32

D

8

17

18

1

NA

14

NA

0.05

65

250

NA

20

N

N

N

Y

CXAR41110

TSSOP28P

QFN4x4-28

D

8

26

20

0

NA

15

NA

0.1

65

160

95

15

N

N

P

N

CXAR41111

TSSOP28P

QFN4x4-28B

D

5

22

17

0

NA

15

NA

0.05

65

130

95

5

N

N

P

N

CXAR41112

TSSOP28P

QFN4x4-28B

D

5

26

17

0

NA

17

NA

0.05

70

120

95

5

N

N

P

N

CXAR41113

TQFN7

x7-48/P

D

9

14

20

NA

NA

7.5

NA

0.2

85

250

85

20

N

N

N

N

CXAR41114/A

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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