1.  一般的描述  

LT86101X是Lontium基于ClearEdge?技術(shù)的第四代HDMI/DVI中繼器，符合HDMI 1.3(高清晰度多媒體接口)規(guī)范。 它是一個6.75Gbps (3 x 2.25Gbps)高性能重時鐘設(shè)備，支持3個TMDS數(shù)據(jù)通道和一個單一的時鐘通道。 該設(shè)備還集成了一個雙向DDC有源緩沖區(qū)和一個并行CEC有源緩沖區(qū)，以提供一個完整的HDMI/DVI中繼器解決方案。  

雙控制模式可用于LT86101SX。 這為系統(tǒng)設(shè)計人員提供了非常靈活的解決方案，以考慮性能或成本。 LT86101X支持兩種控制模式:引腳控制模式和I2C控制模式。 在引腳控制模式下，不需要外部MCU，基本功能由引腳配置控制，但高級功能是默認設(shè)置。 在I2C控制模式下，需要外部MCU，芯片完全由MCU控制，控制引腳配置不再有效。  

LT86101X提供7mm x 7mm 48引線QFN封裝，并在0°C至+70°C溫度范圍內(nèi)工作。  

2.  特性  

?兼容HDMI 1.3，支持2.25Gbps的數(shù)據(jù)速率  

?支持3D視頻格式和4Kx2K擴展分辨率格式  

?自適應(yīng)接收均衡高達40dB，以補償長/便宜的電纜損耗  

?odt和校準，更好的信號完整性  

?單獨的ODT電源交流耦合應(yīng)用  

?可配置傳輸去重，可達-9dB預(yù)補償信號失真  

?集成反向終端，提高輸出信號質(zhì)量  

?容5v的有源DDC緩沖器允許電容高達3000pF  

?并行有源CEC緩沖器，驅(qū)動能力高達3000pF  

?擴展電纜長度如下:(rx面+ tx面)  

高達(55m + 20m)超過26 AWG STP HDMI電纜@ 1.65Gbps  

最大(35m + 20m)，超過26 AWG STP HDMI電纜@ 2.25Gbps  

高達(25m + 15m)超過28awg STP HDMI電纜@ 1.65Gbps  

高達(15m + 10m)超過28awg STP HDMI電纜@ 2.25Gbps  

?可級聯(lián)，進一步延伸電纜  

?雙控制模式靈活應(yīng)用  

?鏈路活動檢測，以啟用抑制選項  

?0.75W典型功耗  

?ESD額定值:HBM±6kV  

?7mm x 7mm 48pin QFN無鉛封裝  

3. 應(yīng)用程序  

?TMDS電纜均衡器  

?高清電視和顯示器  

?DVI/HDMI電纜擴展模塊  

?電纜組件  

1. General Description

LT86101X is Lontium’s 4th generation HDMI/DVI repeater based on ClearEdge? technology, compliant with the HDMI 1.3 (High Definition Multimedia Interface) specifICation. It is a 6.75Gbps (3 x 2.25Gbps) high performance re-clocking device that supports 3 TMDS data channels and a single clock channel. The device also integrates a bi-directional DDC active buffer and a parallel CEC active buffer to provide a complete HDMI/DVI repeater solution.
Dual control modes are available for LT86101SX. This provides system designers with very flexible solutions, for consideration of either performance or cost. The LT86101X supports two control modes: Pin Control Mode and I2C Control Mode. In Pin Control Mode, no external MCU is needed, and the basic functions are under control of pin configurations, however advanced functions are at default settings. In I2C Control Mode, an external MCU is required, and the chip is fully controlLED by MCU while the control pin configurations are not valid any more.
The LT86101X is offered in a 7mm x 7mm 48-lead QFN package, and operates over a 0°C to +70°C temperature range.

2. FEATURES
? Compatible with HDMI 1.3, supports 2.25Gbps data rate
? Supports 3D video formats and 4Kx2K extended resolution formats
? Adaptive receive equalization up to 40dB to compensate for long/cheap cable losses
? ODTs and calibration for better signal integrity
? Separate ODT supply for AC-coupled applications
? Configurable transmit de-emphasis up to -9dB to pre-compensate signal distortion
? Integrated back-termination to improve output signal quality
? 5V-tolerant active DDC buffer allowing capacitance up to 3000pF
? Parallel active CEC buffer with drive capability up to 3000pF
? Extends cable length as follows: (RX-side + TX-side)
  Up to (55m + 20m) over 26 AWG STP HDMI cable @ 1.65Gbps
  Up to (35m + 20m) over 26 AWG STP HDMI cable @ 2.25Gbps
  Up to (25m + 15m) over 28 AWG STP HDMI cable @ 1.65Gbps
  Up to (15m + 10m) over 28 AWG STP HDMI cable @ 2.25Gbps
? Cascadable for further cable reach
? Dual control modes for flexible applications
? Link activity detection to enable squelch option
? Power dissipation of 0.75W typical
? ESD rating: HBM at ±6kV
? 7mm x 7mm 48-pin QFN lead-free package

3. APPLICATIONS

? TMDS cable equalizer
? HD televisions and displays
? DVI/HDMI cable-extender modules
? Cable assemblies

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