CXAS42178双超低导通电阻低电压双极/双掷（DPDT）CMOS模拟开关低工作电压大电流切换扬声器输出和手机听筒单声道模式下处理平衡麦克风/扬声器/铃声发生器双极/双掷DPDT模拟开关有两个逻辑控制输入每个输入控制两个SPDT开关

CXAS42178双超低导通电阻低电压双极/双掷（DPDT）CMOS模拟开关低工作电压大电流切换扬声器输出和手机听筒单声道模式下处理平衡麦克风/扬声器/铃声发生器双极/双掷DPDT模拟开关有两个逻辑控制输入每个输入控制两个SPDT开关

产品型号：CXAS42178
产品类型：DC-DC转换器
产品系列： 模拟负载开关
产品状态：量产
浏览次数：44 次
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产品简介

CXAS42178是一种双、超低导通电阻、低电压、双极/双掷（DPDT）CMOS模拟开关。该设备适用于低工作电压、大电流切换扬声器输出和手机听筒。它可以切换平衡立体声输出。
CXAS42178可以在单声道模式下处理平衡麦克风/扬声器/铃声发生器。它包含一个“先断后造”（BBM）功能。
CXAS42178配置为双双极/双掷（DPDT）模拟开关，具有两个逻辑控制输入，每个输入控制两个SPDT开关。该配置可用作双差分2对1多路复用器/解复用器。
•低压运行：1.8V至4.35V
•超低导通电阻：0.5Ω（典型值）
•低电阻平面度
•-3dB带宽：70MHz
•快速切换时间（4.2V）
吨=52纳秒
tOFF=25ns
•轨对轨输入和输出操作
•低功耗
•TTL/CMOS兼容逻辑控制

技术参数

输入电压范围 (VIN)≤ 1.8～4.35 V
工作频率70MHzHz
转换效率52%
封装类型TQFN-2.6x1.8-16L
Topology模拟负载开关
Control method线性
Iq1μA
Internal resistance0.5Ω
Number of channels4
Protectionsovp/ocp/otp/scp

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 CXAS42178 is a dual, ultra low on-resistance, low voltage, double-pole/double-throw (DPDT) CMOS analog switch. This device is designed for low operating voltage, high current switching of speaker output and earpiece for cellphone applications. It can switch a balanced stereo output.

The CXAS42178 can handle a balanced microphone/ speaker/ring-tone generator in a monophone mode. It contains a break-before-make (BBM) feature.

The CXAS42178 is configured as a dual double-pole/ double-throw (DPDT) analog switch with two logic control inputs that control two SPDT switches each. The configuration can be used as a dual differential 2-to-1 multiplexer/demultiplexer.

The CXAS42178 is available in Green TQFN-2.6×1.8-16L package.

   产品特点 返回TOP

• Low Voltage Operation: 1.8V to 4.35V

• Ultra Low On-Resistance: 0.5Ω (TYP)

• Low On-Resistance Flatness

• -3dB Bandwidth: 70MHz

• Fast Switching Times (4.2V)

   tON = 52ns

   tOFF = 25ns

• Rail-to-Rail Input and Output Operation

• Low Power Consumption

• TTL/CMOS Compatible Logic Control

• -40℃ to +85℃ Operating Temperature Range

• Available in Green TQFN-2.6×1.8-16L Package

   应用范围 返回TOP

 

Communication Systems

Cell Phones

Portable Instrumentation

Audio Signal Routing

Audio and Video Switching

PCMCIA Cards

Computer Peripherals

Modems

PDAs

   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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模拟信号开关

Part 

Number

CH

Type

VCC

(Min)(V)

VCC

(Max)(V)

Iq

(μA)

RON 

(Ω)

-3dB 

Bandwi

dth(MHz)

VINH

(Min) 

VINL

(Max)V 

tON

(ns)

tOFF 

(ns)

Package

CXAS42160

2

01:02

1.8

5.5

1

4.5

300

1.6

0.5

70

20

TQFN-2.1x1.6-10L

CXAS42161

2

01:02

1.8

4.3

1

6

300

1.6

0.5

20

20

UTQFN-1.8x1.4-10L

CXAS42162

2

01:02

1.8

4.2

1

0.4

40

1.6

0.5

96

16

TQFN-2.1x1.6-10L

CXAS42163

2

01:02

1.8

4.2

1

0.4

40

1.6

0.5

88

16

TQFN-1.8x1.4-10L

CXAS42164

1

01:02

1.8

5.5

1

2.5

120

2.4

0.8

11

30

SC70-6

CXAS42165

2

01:02

1.8

5.5

1

2.5

120

2.4

0.8

11

8

MSOP-10

CXAS42166

1

01:02

1.8

5.5

1

0.5

30

2.4

0.8

21

9

MSOP-8

CXAS42167

2

01:02

1.8

5.5

1

0.5

15

2.4

0.8

50

15

TDFN-3x3-10L   MSOP-10

CXAS42168

1

01:02

1.8

5.5

5

4.5

300

1.5

0.6

20

15

SC70-6

CXAS42169

2

01:02

1.8

5.5

5

4.5

270

1.5

0.6

20

15

TDFN-3x1-12L

CXAS42170

1

01:02

1.8

5.5

5

9

600

1.5

0.6

20

15

SC70-6

CXAS42171

4

01:02

5

5

20

12

500

2

0.6

25

13

SOIC-16 TSSOP-16 SSOP-16

CXAS42172

4

01:02

5

5

20

12

500

2

0.6

25

13

SOIC-16 TSSOP-16 SSOP-16

CXAS42173

4

01:02

1.8

4.35

1

0.5

70

1.6

0.5

52

25

TQFN-3x3-16L

CXAS42174

4

01:02

2.5

5.5

15

4

380

1.5

0.5

15

9

TQFN-3x3-16L

CXAS42175

2

01:02

2.5

5

6

4

400

1.5

0.6

15

11

UTQFN-1.8x1.4-10L MSOP-10

CXAS42176

2

01:02

2.5

5

3.5

0.6

80

1.5

0.6

17

24

UTQFN-1.8

CXAS42177

1

01:02

2.5

5

8

4

400

1.65

0.6

15

11

SOT-23-6

CXAS42178

4

01:02

1.8

4.35

1

0.5

70

1.6

0.5

52

25

TQFN-2.6x1.8-16L

CXAS42179

1

01:02

1.8

5.5

0.1

0.8

90

1.6

0.4

56

32

SC70-6

CXAS42180

4

01:02

1.8

5.5

1

4

300

1.6

0.5

31.5

30

TQFN-3x3-16L   TQFN-2.5x2.5-16L

CXAS42181

4

01:02

1.8

5.5

1

4

300

1.6

0.5

29.5

29.5

TQFN-3x3-16L

CXAS42182

4

01:02

1.8

5.5

1

4

300

1.6

0.5

36

30

TQFN-2.6x1.8-16L

CXAS42183

4

01:02

1.8

5.5

1

4

300

1.6

0.5

32

26

TQFN-2.6x1.8-16L

CXAS42184

4

01:02

1.8

5.5

1

4.5

300

1.6

0.5

40

30

TQFN-2.6x1.8-16L

CXAS42185

1

01:08

3.6

11

20

36

90

2.4

0.8

60

60

SSOP-16 TSSOP-16 SOIC-16 TQFN-3x3-16L

CXAS42186

2

01:04

3.6

11

20

36

120

2.4

0.8

60

60

SSOP-16 TSSOP-16 SOIC-16 TQFN-3x3-16L

CXAS42187

3

01:02

3.6

11

20

36

140

2.4

0.8

60

70

SSOP-16 TSSOP-16 SOIC-16 TQFN-3x3-16L

CXAS42188

2

01:02

1.8

5.5

1

0.4

13

2.4

0.8

25

28

WLCSP-2.0x1.5-10B

CXAS42189

2

01:02

1.8

5.5

5

4.5

300

1.5

0.6

26

20

WLCSP-2.0x1.5-10B MSOP-10 TDFN-3x3-10L TQFN-1.8x1.4-10L

CXAS42190

2

01:04

1.8

4.2

1

0.5

30

1.6

0.5

20

20

TQFN-3x3-16L TSSOP-16

CXAS42191

1

01:08

2.5

5.5

6

48

180

1.7

0.5

60

70

SSOP-16 TSSOP-16 SOIC-16 TQFN-3x3-16L

CXAS42192

2

01:04

2.5

5.5

6

48

180

1.7

0.5

60

70

SSOP-16 TSSOP-16 SOIC-16 TQFN-3x3-16L

CXAS42193

3

01:02

2.5

5.5

6

48

180

1.7

0.5

60

70

SSOP-16 TSSOP-16 SOIC-16 TQFN-3x3-16L

CXAS42194

4

SPST

2.5

5.5

6

24

180

1.7

0.5

40

100

TSSOP-14 SOIC-14

CXAS42195

1

01:04

2.5

5.5

6

24

180

1.7

0.5

50

85

MSOP-10

CXAS42196

1

01:04

1.8

4.2

1

4

150

1.4

0.3

35

9

TDFN-3x3-10L MSOP-10

CXAS42197

4

01:02

1.8

5.5

1

4.5

300

1.6

0.5

40

30

TSSOP-16

CXAS42198

2

01:02

1.8

4.2

1

0.5

55

1.6

0.5

17

27.5

TQFN-1.8x1.4-10L

CXAS42199

2

01:02

1.8

4.3

1

4.5

550

1.6

0.5

10

22

TQFN-1.8x1.4-10L MSOP-10 UTQFN-1.8x1.4-10L

CXAS42200

2

01:02

1.8

4.3

1

4.5

500

1.6

0.5

11

20

TQFN-2.1x1.6-10L

CXAS42201

2

01:02

1.8

5.5

30

5

550

1.5

0.35

15

20

TQFN-2.6x1.8-16L

CXAS42202

2

01:02

1.8

4.3

1

5

550

1.6

0.5

15

20

MSOP-10 UTQFN-1.8x1.4-10L

CXAS42203

2

01:04

1.8

4.2

1

4

150

1.6

0.5

17

9

TQFN-3x3-16L TSSOP-16

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