CXAS42204交换机矩阵为当今的视频应用程序提供了灵活的选项。可路由到9个输出中任意一个的12个输入。每个输入可以路由到一个或多个输出，但只有一个输入可以路由到任何一个输出。输入输出路由通过I2C兼容的数字接口控制。
每个输入都支持一个集成的钳位选项，用于将同步视频的输出同步尖端电平设置为~600mV。或者，在~1.3V的电压下，输入可以在内部偏置到没有同步（色度、Pb、Pr）的中心信号。这些直流输出电平用于6dB增益设置。更高的增益设置相应地增加直流输出电平。输入钳位/偏置模式通过I2C选择。未使用的输出可能会断电以减少功耗。
•12×9交叉点开关矩阵
•一对一或一对多输出切换
•I2C兼容数字接口，标准模式
•支持SD、PS和HD视频
•输入钳位和偏置电路
•双负载（75Ω）高输出驱动器-
阻抗禁用
•可编程增益：6dB、7dB、8dB或9dB
•交流或直流耦合输入
•交流或直流耦合输出
•供电范围：3.1V至5.5V
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[ CXAS42204 ]
目录
7.相关产品
产品概述 返回TOP
The CXAS42204 switch matrix provides flexible options for today’s video applications. The 12 inputs that can be routed to any of 9 outputs. Each input can be routed to one or more outputs, but only one input can be routed to any one output. The input to output routing is controlled via an I2C - compatible digital interface.
Each input supports an integrated clamp option to set the output sync tip level of video with sync to ~600mV. Alternatively, the input may be internally biased to center signals without sync (Chroma, Pb, Pr) at ~1.3V. These DC output levels are for the 6dB gain setting. Higher gain settings increase the DC output levels accordingly. The input clamp/bias mode is selected via I2C. Unused outputs may be powered down to reduce power dissipation.
The CXAS42204 is available in Green SSOP-28 and TSSOP-28 packages. It operates over an ambient temperature range of -40℃ to +85℃.
产品特点 返回TOP
• 12 × 9 Crosspoint Switch Matrix
• One-to-One or One-to-Many Output Switching
• I2C-Compatible Digital Interface, Standard Mode
• Supports SD, PS, and HD Video
• Input Clamp and Bias Circuitry
• Dual-Load (75Ω) Output Drivers with High-
Impedance Disable
• Programmable Gain: 6dB, 7dB, 8dB, or 9dB
• AC- or DC-Coupled Inputs
• AC- or DC-Coupled Outputs
• Supply Range: 3.1V to 5.5V
• Available in Green SSOP-28 and TSSOP-28 Packages
应用范围 返回TOP
Video Distribution
TV and HDTV Sets
Cable and Satellite Set-Top Boxes
A / V Switchers
Personal Video Recorders (PVR)
Security and Surveillance
Automotive (In-Cabin Entertainment)
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产品封装图 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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