LT8641UX-HDMI4切1切换器

1.一般的描述

Lontium LT8641UX HDMI2.0 Switch采用4:1开关，符合HDMI2.0/1.4规范，最大6Gbps高速数据速率，自适应均衡RX输入和预强调TX输出以支持长电缆应用，板上无XTAL和1.2V电源以节省BOM成本，内部TX通道交换灵活的PCB布线。

LT8641UX HDMI2.0 Switch自动检测线缆损耗，并自适应优化均衡设置。CDR清除输入数据抖动，使其适合于长电缆和级联应用。它支持RX终端电阻校准，以进一步提高信号的完整性。

LT8641UX支持DDC/SCDC符合HDMI2.0/1.4规范。集成的DDC和HPD交换机进一步降低了系统制造成本，简化了系统板上的路由。

2. 特性

?4个输入，1个输出HDMI2.0链接

?HDMI 1.4/2.0兼容

?支持高达6.0Gbps的数据速率

?TX/RX端odt和管理电路

?集成HPD开关、DDC开关、+5V电源指示灯开关，大大降低成本，简化制造工艺

?源/接收连接检测，灵活的系统管理

?支持I2C控制

?单3.3V电源

?5v容错DDC接口

?抖动清洗锁相环更好的性能

?DC/AC耦合信号输入/输出

?不需要外部晶体

?自适应均衡

?TX通道交换灵活的PCB路由

3.应用程序

?用于高级电视(HDTV)的前面板缓冲器

?独立交换机

?多输入显示

?投影仪

?A/V接收器

1. General Description

The Lontium LT8641UX HDMI2.0 Switch features a 4:1 switch compliant to HDMI2.0/1.4 specifICation, max 6Gbps high speed data rate, adaptive equalization RX input and pre-emphasized TX output to support long cable application, no XTAL and 1.2V power supply on board to save BOM cost, internal TX lane swap for flexible PCB routing .
LT8641UX HDMI2.0 Switch automatically detect the cable loss, and adaptively optimize the equalization setting. The CDR cleans the input data jitter, make it suitable for long cable and cascade application. It support RX termination resistor calibration to further improve signal integrity.
LT8641UX support DDC/SCDC compliant to HDMI2.0/1.4 specification. The integrated DDC and HPD switches further lower the cost of system manufacture, and simplify the routing on the system board.

2. Features

? 4 inputs, 1output HDMI2.0 links
? HDMI 1.4/2.0 compliant
? Supports data rates up to 6.0Gbps
? TX/RX side ODTs and management circuitry
? Integrated HPD switch, DDC switch, and +5V Power indicator switch, greatly lowering the cost and simplifying the manufacturing process
? Source/Sink connection detection for flexible system management
? I2C control supported
? Single 3.3V power supply
? 5V-tolerant DDC interfaces
? Jitter cleaning PLL for better performance
? DC/AC coupLED signal input/output
? No external crystal is needed
? Adaptive equalization
? TX Lane swap for flexible PCB routing

3. APPLICATIONS

? Front panel buffer for advanced television (HDTV) sets
? Standalone switcher
? Multiple input displays
? Projector
? A/V receivers

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