CXAS4232B是用于CITA和OMTP 4极附件的音频插孔检测开关。插针式麦克风位于音频键侧，当CXAS4232B'O1/O2插入手机的音频插孔时，它将检测音频插头上的接地（GND）和麦克风（MIC）极的位置，并自动将它们路由到适当的连接。
MIC开关‘Ron为5Ω（典型值），而接地开关的低Ron为0.5Ω（典型值），以最小化其上的电压降，防止接地参考电压意外增加。
当VCC通电时，CXAS4232B启用，并且它消耗超低静态电流，小于600nA（典型值）。传输中的信号摆幅范围可以是轨对轨（0~VCC），即使是CXAS4232B也能承受高于VCC但低于VCC+3V的信号摆幅，且对VCC电源的反向泄漏很小，不会对设备造成任何损坏。建议信号速度不超过300KHz。
电源电压范围：2.3~5.5V
检测四极插头上的接地和麦克风的极性
自动将GND和MIC路由到音频插孔终端
l麦克风开关（5Ω）和接地开关（0.5Ω）的低RDSON
超低静态电流，<600nA（典型）
ESD额定值（MIL-STD-883J/方法3015.8）
输入输出对地：±8KV
地面电源：±8KV
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[ CXAS4232B ]
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）
一.产品概述
The CXAS4232B is an audio jack detection switch for CITA and OMTP 4-pole accessories. The pin MIC is on audio key side, as CXAS4232B' O1/O2 is plugged into audio jack of cell phone, it will detect the locations of ground (GND) and microphone (MIC) poles on the audio plug and automatically routes them to the appropriate connections.
The MIC switch' Ron is 5 Ω (typical) while the Ground switch has a low Ron of 0.5 Ω (typical) to minimize voltage drop across it, preventing undesired increase in ground reference voltage.
As VCC is power-up, CXAS4232B is enabled and it consumes ultra-low quiescent current, less than 600nA (typical). The range of signal swing in transmission can be rail-to-rail (0~VCC), even CXAS4232B can tolerate signal swing higher than VCC but less than VCC+3V with very little inverse leakage into VCC supply and not any damage of the device. The speed of signal is recommended not more than 300KHz.
The CXAS4232B is available in SOT-353 package. Standard product is Pb-Free and halogen-Free.
二.产品特点
Supply voltage range : 2.3 ~ 5.5V
Detects polarity of GND and MIC on 4-pole plugs
Automatically routes GND and MIC to audio jack terminals
low RDSON for MIC Switch (5 Ω) and GND switch (0.5 Ω)
Ultra-Low quiescent current, < 600nA (typical)
ESD Rating (MIL-STD-883J / Method 3015.8)
IO to GND : ±8KV
Power to GND : ±8KV
三.应用范围
Mobile Audio Key
四.技术规格书（产品PDF)
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！
五.产品封装图
六.电路原理图
七.相关芯片选择指南 更多同类产品......
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音频开关 |
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Product |
Configuration |
VIN |
IQ |
BW@-3dB |
THD+N |
Crosstalk |
OFF |
Size |
Package |
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(Min.) |
(Max.) |
(Max.) |
(Typ.) |
(Typ.) |
(Typ.) |
(Typ.) |
(L×W) |
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(V) |
(uA) |
(Ω) |
(dB) |
(dB) |
(dB) |
(mm) |
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Dual SPDT |
2.3 |
5.5 |
1 |
0.5 |
-73 |
-83 |
-81 |
1.4 x 1.8 |
QFN1418-10L |
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|
Dual SPDT |
2.3 |
5.5 |
1 |
0.5 |
-73 |
-83 |
-81 |
1.4 x 1.8 |
QFN1418-10L |
|
|
Dual SPDT |
2.3 |
5.5 |
1 |
0.75 |
-66 |
-81 |
-80 |
1.4 x 1.8 |
QFN1418-10L |
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MIC/GND |
2.3 |
5 |
1 |
0.08 |
-80 |
-50 |
-50 |
2.0 x 2.0 |
DFN2020-6L |
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|
MIC/GND |
2.3 |
5.5 |
0.6 |
0.5 |
- |
- |
- |
2.1 x 2.3 |
SOT-353 |
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Dual SPST |
3.3 |
4.5 |
12 |
50 |
-105 |
-130 |
-130 |
1.4 x 1.8 |
QFN1418-10L |
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Quad SPDT |
2.3 |
4.5 |
1 |
0.5 |
-73 |
-50 |
-50 |
1.8 x 2.6 |
QFN1826-16L |
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|
Quad SPDT |
2.3 |
4.5 |
1 |
0.5 |
-73 |
-50 |
-50 |
3.0 x 3.0 |
QFN3030-16L |
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Dual SPDT HIFI |
3.3 |
4.5 |
55 |
0.2 |
-118 |
145 |
145 |
1.8 x 2.6 |
QFN1826-16L |
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Dual SPDT HIFI |
3.3 |
4.5 |
55 |
0.2 |
-118 |
145 |
145 |
1.2 x 1.63 |
WLCSP-12 |
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◀ 上一篇:CXAS4231D用于交换耳机接口上的接地和麦克风连接合闸前断开扩展控制输入范围内的低静态电流电源电压2.3~5.0V
下一篇▶:CXAS4233Q高性能双单刀单掷SPST模拟开关有负摆幅音频功能在3.6V VCC下具有1Ω的低Ron在3.3V到4.5V的宽VCC范围内工作为高压隔离而设计智能电路控制电压低于VCC电源电压
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