CXAS4237C利用Switch Pro技术，CXAS4237C是一款双SPTT模拟开关，具有超低失真、高断开隔离度，适用于具有负摆动音频信号容量的特殊立体声音频应用，其特点是在3.3V VCC下具有0.2Ω（典型）的超低Ron。CXAS4237C在3.0V到4.5V的宽范围内操作单个电源，1.8V逻辑与超高PSRR兼容。
具有软启动功能，可消除在任何应用条件（如切换、启用/禁用和通电）下关联的持久性有机污染物和点击。凭借优越的THD+N性能和其他高性能，CXAS4237C是高保真系统应用的理想设备。
CXAS4237C提供12球晶圆级芯片级封装（WLCSP），尺寸为1.2x1.6x0.5mm。所有产品无铅无卤
•单电源范围从3.0V到4.5V
在2Vrms时，将-118dB THD+N转换为100kΩ负载
在2Vrms时，将-114dB THD+N转换为32Ω负载
信噪比132dBA
10kHz时100dB PSRR
137dB串扰和分离
用外部电容器调整软启动
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[ CXAS4237C ]"
目录
产品概述 返回TOP
With SwitchPro technology, The CXAS4237C is a Dual SPDT analog switch with ultra-low distortion, high OFF-Isolation for special stereo audio applications with negative swing audio signals capacity that features ultra-low Ron of 0.2Ω (typical) at 3.3V VCC. The CXAS4237C operates a single power supply over a wide range from 3.0V to 4.5V and 1.8V logic compatible with ultra high PSRR.
With soft-start feature that eliminates pops and clicks associated at any application conditions likes switched, enable/disable and power-up. With superior THD+N performance and other high performance, the CXAS4237C is an ideal device for Hi-Fi system applications.
The CXAS4237C is available in 12 Ball Wafer Level Chip Scale Package (WLCSP) with 1.2x1.6x0.5mm. All products is Pb-free and Halogen-free
产品特点 返回TOP
Single supply range operating from 3.0V to 4.5V
-118dB THD+N into 100kΩ load at 2Vrms
-114dB THD+N into 32Ω load at 2Vrms
Signal-to-Noise (SNR) Ratio 132dBA
100dB PSRR at 10kHz
137dB crosstalk & separation
Adjust soft-start with external capacitor
应用范围 返回TOP
Hi-Fi Smartphones and Portable Device
Hi-Fi SACD/DVD players
High Quality Home Theaters
技术规格书（产品PDF) 返回TOP
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产品封装图 返回TOP
电路原理图 返回TOP
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| 音频开关 | ||||||||||
| 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) | ||||
| CXAS4228Q | Dual SPDT | 2.3 | 5.5 | 1 | 0.5 | -73 | -83 | -81 | 1.4 x 1.8 | QFN1418-10L |
| CXAS4229Q | Dual SPDT | 2.3 | 5.5 | 1 | 0.5 | -73 | -83 | -81 | 1.4 x 1.8 | QFN1418-10L |
| CXAS4230Q | Dual SPDT | 2.3 | 5.5 | 1 | 0.75 | -66 | -81 | -80 | 1.4 x 1.8 | QFN1418-10L |
| CXAS4231D | MIC/GND | 2.3 | 5 | 1 | 0.08 | -80 | -50 | -50 | 2.0 x 2.0 | DFN2020-6L |
| CXAS4232B | MIC/GND | 2.3 | 5.5 | 0.6 | 0.5 | - | - | - | 2.1 x 2.3 | SOT-353 |
| CXAS4233Q | Dual SPST | 3.3 | 4.5 | 12 | 50 | -105 | -130 | -130 | 1.4 x 1.8 | QFN1418-10L |
| CXAS4234Q | Quad SPDT | 2.3 | 4.5 | 1 | 0.5 | -73 | -50 | -50 | 1.8 x 2.6 | QFN1826-16L |
| CXAS4235Q | Quad SPDT | 2.3 | 4.5 | 1 | 0.5 | -73 | -50 | -50 | 3.0 x 3.0 | QFN3030-16L |
| CXAS4236Q | Dual SPDT HIFI | 3.3 | 4.5 | 55 | 0.2 | -118 | 145 | 145 | 1.8 x 2.6 | QFN1826-16L |
| CXAS4237C | Dual SPDT HIFI | 3.3 | 4.5 | 55 | 0.2 | -118 | 145 | 145 | 1.2 x 1.63 | WLCSP-12 |
