CXAS42208是6位1/2多路/分接器用于从2.0V到5.0V的工作电压可以处理数字和模拟信号高达VCC的信号可以在任意方向传输两个控制管脚每个管脚同时控制三个1/2使能管脚将所有输出置于高阻抗模式

CXAS42208允许将任何SD、SDIO和多媒体卡主机控制器扩展到多个卡或外围设备，因为SDIO接口由6位：CMD、CLK和数据[0:3]信号组成。CXAS42208有两个控制管脚，为用户提供了额外的灵活性。例如，在诸如液晶电视、液晶显示器或笔记本扩展底座等设备中对两个不同的音视频信号进行多路复用的能力。
•单电源范围：2.0V至5.0V
•低电容开关：15pF（典型）
•导通电阻：3V时为8.5Ω（典型值）
•-3dB带宽：450MHz
•低串扰：10MHz时为55dB
•高关隔离度：10MHz时为-57dB
•断电模式下的隔离，VCC=0V
•控制输入的1.8V逻辑阈值兼容性

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 CXAS42208 is a 6-bit 1-of-2 Mux/Demux designed to operate from 2.0V to 5.0V. This device can handle both digital and analog signals, and signals up to V_CC can be transmitted in either direction. The CXAS42208 has two control pins, each controlling three 1-of-2 muxes at the same time, and an enable pin that is used to put all outputs in high-impedance mode. The control pins are compatible with 1.8V logic thresholds and are backward compatible with 2.5V and 3.3V logic thresholds as well.

The CXAS42208 allows any SD, SDIO, and multimedia card host controllers to be expanded out to multiple cards or peripherals since the SDIO interface consists of 6-bits: CMD, CLK, and Data [0:3] signals. The CXAS42208 has two control pins that give additional flexibility to the user. For example, the ability to mux two different audio-video signals in equipment such as an LCD television, an LCD monitor, or a notebook docking station.

The CXAS42208 is available in Green TSSOP-24 and TQFN-4×4-24L packages. It operates over an ambient temperature range of -40℃ to+85℃.

   产品特点 返回TOP

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• Single-Supply Range: 2.0V to 5.0V
• Low Capacitance Switches: 15pF (TYP)
• On-State Resistance: 8.5Ω (TYP) at 3V
• -3dB Bandwidth: 450MHz
• Low Crosstalk: -55dB at 10MHz
• High Off-Isolation: -57dB at 10MHz
• Isolation in Powerdown Mode, V_CC = 0V
• 1.8V Logic Threshold Compatibility for Control Inputs
• Available in Green TSSOP-24 and TQFN-4×4-24L Packages
• Extended Industrial Temperature Range:
    -40℃ to +85℃

   应用范围 返回TOP

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SD/SDIO and MMC Two Port MUX
PC VGA Video MUX/Video Systems
Audio and Video Signal Routing

   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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特殊开关系列
Part Number	Feature	VCC (Min)V	VCC (Max)V	-3dB  Bandwidth	Interface	RON  (Ω)	Crosstalk  (-dB)	Package
CXAS42204	12x9,Buffered	3.1	5.5	84	I2C		74	SSOP-28 TSSOP-28
CXAS42205	8x6, Buffered	3.1	5.5	88	I2C		77	TSSOP-24
CXAS42206	SIM I/F Swap	1.8	5.5	400	I/O		80	TQFN-3x3-20L
CXAS42207	4-2:2, Passive Swap	1.8	5.5	400	I/O	12	80	TQFN-3x3-20L
CXAS42208	Six Channels 1:2 Multiplexer	2	5	450	I/O	8.5	55	TSSOP-24 TQFN-4x4-24L
CXAS42209	16x4,Passive	2.7	5.5	120	I2C	30	110	TSSOP-28 TQFN-4x4-28L
CXAS42210	16x8 Passive	2.7	5.5	120	I2C	30	110	TQFN-5x5-32L LQFP-7x7-32L
CXAS42211	1:16, Multiplexer	3.3	13.2	80	I/O	24	70	TQFN-5x5-32L TSSOP-28
CXAS42212	Dual 1:8, Multiplexer	3.3	13.2	135	I/O	24	70	TQFN-5x5-32L TSSOP-28
CXAS42213	High Speed, 16x8, Passive,  I2C Interface	2.7	5.5	250	I2C	30	110	LQFP-7x7-32L
CXAS42214	1:8, Multiplexer	3.3	13.2	80	I/O	24	70	TSSOP-16
CXAS42215	16x8, Passive	4.5	13.2	45	I/O	40	47	LQFP-10x10-44L PLCC-44L
CXAS42216	High Speed, 16x8, Passive, Serial Digital Interface	2.7	5.5	250	SPI	28	55	LQFP-7x7-32L
CXAS42217	High Speed, 2:1 32-Bit Bus Multiplexer	3.3	5	100	I/O	11	60	LQFP-14x14-100L
CXAS42218	High Speed, 3-1:3Multiplexer	2.5	5.5	350	I/O	7	60	TQFN-3x3-20L TSSOP-20
CXAS42219	High Speed, 2-1:3 Multiplexer	2.7	4.3	380/400	I/O	4/9	90	UTQFN-2.2x1.4-12L