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