1. 描述

LT86121TXE是一款高性能HDMI2.0中繼器，專為長電纜應用而設計。對于最長的電纜，它應該與LT86121RXE配對。在配對模式下，可以啟用幾個獨特的特性，以降低帶寬需求和優化性能。

HDMI2.0的輸入和輸出都支持高達6Gbps的數據速率，這為4k@60Hz視頻提供了足夠的帶寬。HDCP2.2也支持數據解密。

在配對模式下，可以使用YCbCr4:1:1轉換和DSC編碼器來降低數據速率和帶寬需求。此外，可以激活FEC來糾正數據錯誤，幫助提高系統容錯水平。這些獨特的技術將顯著延長傳輸距離。

3ch到2ch的轉換消除了HDMI規格要求的3個差分數據對的必要。但數據速率將增加50%。在中、低帶寬的應用中，2對數據就足夠了。

集成的USB中繼器支持高速、全速和低速模式。適用于USB信號擴展。還支持用戶自定義數據包，為邊帶數據通信提供了一條路徑。

提供兩個數字音頻輸出接口，I2S和SPDIF。I2S接口支持2-ch LPCM, SPDIF接口支持2-ch LPCM或壓縮音頻，最大采樣率為192kHz。

該設備能夠自動操作，這是由一個集成的微處理器，使用嵌入式SPI閃存固件存儲。系統控制也可通過配置I2C從接口。

2. 特性

?HDMI2.0接收機

?HDMI2.0發射機

?數字音頻輸入/輸出

?雜項

3.應用程序

?積極的電纜

?監測

?KVM擴展

1. Description

The LT86121TXE is a high performance HDMI2.0 repeater designed for long cable application. It should be paired with LT86121RXE for longest cable reach. In paired mode, several unique features can be enabled to reduce bandwidth requirement and optimize performance.
Both the HDMI2.0 input and output support data rate up to 6Gbps which provides sufficient bandwidth for 4k@60Hz video. Also HDCP2.2 is supported for data decryption.
In paired mode, YCbCr4:1:1 conversion and DSC encoder can be used to reduce data rate and hence bandwidth requirement. Furthermore, FEC can be activated to correct data error and help to enhance system error tolerance level. These unique techniques together will significantly extend transmission distance.
3ch-to-2ch conversion eliminates the necessary of 3 differential data pairs as required by HDMI specification. But data rate will increase by 50%. In applications of low and middle bandwidth, 2 data pairs are enough for data transmission.
Integrated USB repeater supports high speed, full speed and low speed modes. It is suitable for USB signal extension. User defined packet is also supported which provides a path for sideband data communication.
Two digital audio output interfaces are available, I2S and SPDIF. The I2S interface supports 2-ch LPCM and the SPDIF interface supports 2-ch LPCM or compressed audio, both at maximum 192kHz sample rate.
The device is capable of automatic operation which is enabled by an integrated microprocessor that uses an embedded SPI flash for firmware storage. System control is also available through the configuration I2C slave interface.
2. Features
? HDMI2.0 Receiver
? HDMI2.0 Transmitter
? Digital Audio Input/Output
? Miscellaneous
3. Applications
? Active Cables
? Surveillance
? KVM Extension

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