1. 描述
LT86121TXE是一款高性能HDMI2.0中继器，专为长电缆应用而设计。对于至长的电缆，它应该与LT86121RXE配对。在配对模式下，可以启用几个独特的特性，以降低带宽需求和优化性能。
HDMI2.0的输入和输出都支持高达6Gbps的数据速率，这为4k@60Hz视频提供了足够的带宽。HDCP2.2也支持数据解密。
在配对模式下，可以使用YCbCr4:1:1转换和DSC编码器来降低数据速率和带宽需求。此外，可以激活FEC来纠正数据错误，帮助提高系统容错水平。这些独特的技术将显著延长传输距离。
3ch到2ch的转换消除了HDMI规格要求的3个差分数据对的必要。但数据速率将增加50%。在中、低带宽的应用中，2对数据就足够了。
集成的USB中继器支持高速、全速和低速模式。适用于USB信号扩展。还支持用户自定义数据包，为边带数据通信提供了一条路径。
提供两个数字音频输出接口，I2S和SPDIF。I2S接口支持2-ch LPCM, SPDIF接口支持2-ch LPCM或压缩音频，至大采样率为192kHz。
该设备能够自动操作，这是由一个集成的微处理器，使用嵌入式SPI闪存固件存储。系统控制也可通过配置I2C从接口。
2. 特性
•HDMI2.0接收机
•HDMI2.0发射机
•数字音频输入/输出
•杂项
3.应用程序
•积极的电缆
•监测
•KVM扩展
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
