CXAS4240C是一种双宽带宽、快速单刀双掷（SPTT）CMOS开关，在VDD=2.7V时具有0.4欧姆的导通电阻，电源范围从1.65V到5.5V，可作为模拟电源使用
开关或作为低延迟总线开关。两个部分的“先断后合”功能可消除切换期间的信号中断，从而防止两个开关同时启用。
宽电源范围：1.65V至5.5V
低导通电阻：
RON（NC）=0.4Ω（VCC=2.7伏）
RON（否）=0.5Ω（VCC=2.7V）
低阻平整度：
RONF（NC）=最大0.15Ω（VCC=2.7V）
RONF（否）=最大0.25Ω（VCC=2.7V）
轨对轨信号范围
高关隔离度：-60dB（f=100kHz）
串扰抑制：-67dB
低总谐波失真：0.05%无铅CSP-10封装
[ CXAS4240C ]
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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 CXAS4240C is a Dual Wide-Bandwidth, fast singlepole double-throw (SPDT) CMOS switch featuring an On-Resistance of 0.4 ohm at VDD=2.7V and wide power supply range from 1.65V to5.5V. It can be used as an analog switch or as a low-delay bus switch. Break-before-make function for both parts eliminates signal disruption during switching from preventing both switches being enabled simultaneously.
二.产品特点
Wide Power Supply Range:1.65V to 5.5V
Low On-Resistance:
RON(NC) = 0.4Ω(VCC=2.7V)
RON(NO) = 0.5Ω(VCC=2.7V)
Low On-Resistance Flatness:
RONF(NC) = 0.15Ω max (VCC=2.7V)
RONF(NO) = 0.25Ω max (VCC=2.7V)
Rail-to-Rail Signal Range
High Off-Isolation: -60dB (f=100 kHz)
Crosstalk Rejection: -67dB
Low Total Harmonic Distortion: 0.05% Lead(Pb) Free CSP-10 Packaging
三.应用范围
Wireless Handsets
MP3 Players
Portable
Electronic
Devices
Relay
Replacement
PDAs
Audio & Video Signal Routing
PCMCIA Cards
Computer Peripherals
Modems
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
| 模拟开关(Analog Switch) | |||||
| Part No. | Mode | Features | VDD | Package | Applications |
| CXAS4239 | SPDT | 2.7Ω 300MHz Low-Voltage Analog Switch | 1.8~5.5V | SC70-6 | Mobile Phone, PDA |
| CXAS4240C | Dual SPDT | 0.4Ω 27MHz Analog Switch | 1.65~5.5V | CSP10 | Mobile Phone, PDA |
| CXAS4241 | 4 SPDT | 0.4Ω 42MHz Analog Switch | 1.6~4.2V | TQFN16 | Mobile Phone, PDA |
| CXAS4242 | DPDT | High Speed USB 2.0(480Mbps) | 2.3~5 V | UTQFN10 | Mobile phone, DC and Notebook |
| CXAS4243 | DPDT | High Speed USB 2.0(480Mbps) | 2.3~5V | UTQFN10 MSOP10 | Mobile phone, DC and Notebook |
| CXAS4244 | 4 SPDT | 5.0Ω 500MHz Analog Switch | 4~5.5V | SOP16 SSOP16 | LCD TV, STB, DVD |
| CXAS4245 | 4 SPDT | Quad SPDT Analog Switch | 4~5.5V | SOP16 SSOP16 | LCD TV, STB, DVD |
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