龙讯LT8631UX HDMI2.0 / 1.4开关，提供技术支持

1.说明
Lontium LT8631UX HDMI2.0 / 1.4开关具有符合HDMI2.0 / 1.4规格的3：1开关，大6Gbps高速数据速率，自适应均衡RX输入和预加重TX输出，以支持长电缆应用，板上没有XTAL以节省BOM成本。
LT8631UX HDMI2.0 / 1.4开关自动检测电缆损耗，并自适应优化均衡设置。它支持RX终端电阻校准，以进一步改善信号完整性。
LT8631UX支持符合HDMI2.0 / 1.4规范的DDC / SCDC。集成的DDC和HPD交换机进一步降低了系统制造成本，并简化了系统板上的布线。此封装为QFN64。它的工作温度范围为−40°C至+ 85°C。
2.功能
•3输入，1输出HDMI / DVIlinks
•兼容HDMI 1.4 / 2.0 / DVI 1.0 
•支持高6Gbps的数据速率
•RX侧ODT和管理电路
•集成的HPD开关，DDC开关和+ 5V电源指示器开关，大大降低了成本并简化了制造过程
•信号源/接收器连接检测，可实现灵活的系统管理
•支持I2C控制
•低抖动添加
•5V耐压DDC接口
•*外部晶体
•自适应均衡
•SCDC监视器
3.应用
•用于高级电视机（HDTV）的前面板缓冲器
•立切换台
•多输入显示
•投影仪

1. Description
The Lontium LT8631UX HDMI2.0/1.4 Switch features a 3:1 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 on board to save BOM cost .
LT8631UX HDMI2.0/1.4 Switch automatically detectsthe cable loss, and adaptively optimize the equalization setting. It supports RX termination resistor calibration to further improve ** integrity.
LT8631UX 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.This package is QFN64. It  operate from −40°C to +85°C.
2. Features
• 3 inputs, 1output HDMI/DVIlinks
• HDMI 1.4/2.0/DVI 1.0compliant
• Supports data rates up to 6Gbps
• 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
• Low added jitter
• 5V-tolerant DDC interfaces
• No external crystal is needed
• Adaptive equalization
• SCDC monitor
3. Application
• Front panel buffer for advanced television (HDTV) sets
• Standalone switcher
• Multiple input displays
• Projectors
• A/V receivers

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