中文
EnglishCXAS4232B 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,
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）</span>
5.产品封装 6.电路原理图</strong> 7.相关产品
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.
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
Mobile Audio Key
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音频开关</p> | ||||||||||
Product | Configuration | VIN | IQ | BW@-3dB | THD+N | Crosstalk | OFF | Size | Package | |
(Min.) | (Max.) | (Max.) | (Typ.) | (Typ.) | (Typ.) | (Typ.) | (L×W) | |||
(V) | (uA) | (Ω) | (dB) | (dB) | (dB) | (mm) | ||||
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 | 0.5 | -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 | |
MIC/GND | 2.3 | 5 | 1 | 0.08 | -80 | -50 | -50 | 2.0 x 2.0 | DFN2020-6L | |
MIC/GND | 2.3 | 5.5 | 0.6 | 0.5 | - | - | - | 2.1 x 2.3 | SOT-353 | |
Dual SPST | 3.3 | 4.5 | 12 | 50 | -105 | -130 | -130 | 1.4 x 1.8 | QFN1418-10L | |
Quad SPDT | 2.3 | 4.5 | 1 | 0.5 | -73 | -50 | -50 | 1.8 x 2.6 | QFN1826-16L | |
Quad SPDT | 2.3 | 4.5 | 1 | 0.5 | -73 | -50 | -50 | 3.0 x 3.0 | QFN3030-16L | |
Dual SPDT HIFI | 3.3 | 4.5 | 55 | 0.2 | -118 | 145 | 145 | 1.8 x 2.6 | QFN1826-16L | |
Dual SPDT HIFI | 3.3 | 4.5 | 55 | 0.2 | -118 | 145 | 145 | 1.2 x 1.63 | WLCSP-12 | |
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