CXAS42247 CXAS42248是低导通电阻单刀双掷SPTT模拟开关工作电压从2.25伏到5.5伏低总谐波失真THD性能防止信号从一个通道传输到另一个通道时出现信号失真接通前断开启用电路

CXAS42247 CXAS42248是一个低导通电阻、单刀双掷（SPTT）模拟开关，工作电压从2.25伏到5.5伏。该器件具有良好的电阻匹配和低总谐波失真（THD）性能。该设备设计用于快速切换速度，具有“先断后合”功能，以防止信号从一个通道传输到另一个通道时出现信号失真。这些特性使该设备适合于便携式音频应用。CXAS42247 CXAS42248有一个单独的逻辑电源引脚（VIO），其工作电压为1.65V至1.95V。VIO为控制电路供电，从而允许CXAS42247 CXAS42248由1.8V信号控制。
·4.5V Vcc时的低通态电阻0.75Ω
·2.25V至5.5V电源（V+）
断电模式下的隔离
·1.65V至1.95V逻辑电源（VIO）
·参照VIO的控制输入
·低电荷注入
“在电阻匹配方面表现出色
·低供电电流（<1μA）
·接通前断开启用电路

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

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The CXAS42247 CXAS42248 is a low on-resistance, SPDT (Single-Pole/Double-Throw) analog switch that operates from a 2.25V to 5.5V supply. The device offers an excellent ON-resistance matching, and low total harmonic distortion (THD) performance. The device is designed for fast switching speeds with the breakbefore-make feature to prevent signal distortion during the transferring of signal from one channel to another. These features make this device suitable for portable audio applications. The CXAS42247 CXAS42248 has a separate logic supply pin (VIO) that is characterized to operate from 1.65V to 1.95V. VIO powers the control circuitry, which allows the CXAS42247 CXAS42248 to be controlled by 1.8V signals.The CXAS42247 CXAS42248 is available in the WLCSP2X4-8 package.

   产品特点 返回TOP

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„ Low ON-State Resistance 0.75Ω at 4.5V Vcc 

„ 2.25V to 5.5V Power Supply (V+) 

„ Isolation in Power-Down mode 

„ 1.65V to 1.95V Logic Supply (VIO) 

„ Control Inputs Referenced to VIO 

„ Low Charge Injection

 „ Excellent ON Resistance Matching 

„ Low supply Current (<1μA) 

„ Break-before-make enable circuitry 

„ WLCSP2X4-8 package 

„ COM Port to GND 8KV HBM ESD

   应用范围 返回TOP

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„ Cell Phones 

„ PDAs 

„ Portable Instrumentation

   技术规格书（产品PDF) 返回TOP 

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产品封装图 返回TOP

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电路原理图 返回TOP

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Analog   Switch
Part NO.	Vin (V) min.	Vin (V) max.	RON  (Ohm)	BW (MHz)	TON (ns)	TOFF (ns)	ISUPPLY (uA)	Note	Package
CXAS42247	2.25	5.5	0.75	43	21.6	18	0.1	Single SPDT	WLCSP2X4-8
CXAS42248	2.25	5.5	0.75	43	19	16	0.2	Dual   SPDT	WLCSP3X4-12
CXAS42249/A/B	1.65	5.5	1	100	19	17	0.05	Single   SPDT	SC-70-6/WLCSP2X3-6
CXAS42250	1.65	5.5	3.5	250	6	8	1	Single   SPDT	SC-70-6
CXAS42251	2.3	5.5	10	--	5	4.5	1	Quad   SPDT	TSSOP-16/SSOP-16
CXAS42252	2.7	5.5	1	20	26	14	1	Dual   SPDT	MSOP-10
CXAS42253	2.3	5	6	1200	22	8.8	1	High-Speed   1:2 Switch	TDFN3X3-10
CXAS42254	4.5	5.5	5	700	2	2	0.2	VGA   RGB 2:2 Dual-Graphics	TQFN5X5-10
CXAS42255	1.65	5.5	--	--	2	2	10	Single   Inverter	WLCSP2X2-4
CXAS42256	1.65	5.5	--	--	3.4	3.4	10	Single   2-Input OR Gate	WLCSP2X3-5