The difference between hdmi2.1 and hdmi2.0 and the conversion of PD signals.

HDMI Cable is the most popular audio and video interface in the video and audio market , Covering the TV 、PC The computer 、 Monitor 、 Mobile phones and other fields ,HDMI The standard of cable has also changed from the previous 2.0 Upgrade to 2.1. although HDMI2.1 Standard as early as 2017 It was released in , However, due to the lack of popularity of high-resolution and high refresh rate video resources , until 2019 end of the year , Only gradually equipped HDMI2.1 TV on the market . that HDMI2.1 and HDMI2.0 What's the difference between them ?

HDMI2.1 and HDMI2.0 Different ：

　　1、HDMI2.0 Versioning support 60hz Of 4k Video playback , The video effect is ideal , No, carton , Is currently the 4k Industry standard interface .

　　2、HDMI2.1 Version supports per second 120hz Of 4k Video playback , It also supports per second 60hz Of 8k Video playback , Fast , No caton , The future 8k,10k The necessary data transmission interface of the times .

　　3、HDMI2.0 and HDMI2.1 The biggest difference is bandwidth .HDMI2.0 The transmission bandwidth is 18Gbps, and HDMI2.1 The bandwidth of is upgraded to 48Gbps, The most direct improvement brought about by the improvement of bandwidth is the increase of the amount of transmitted data .

　　4、HDMI2.1 Support dynamic HDR, and HDMI2.0 Only static HDR.

　　 That's all HDMI2.1 and HDMI2.0 Different ,HDMI 2.1 Standards will be downward compatible HDMI 2.0 as well as 1.4 standard . And originally supported HDMI 2.0 Standard devices can be obtained through firmware updates HDMI 2.1 Support for .

And if you will HDMI2.1 Convert to other signals ？

At present, there is one on the market HDMI2.1 turn DP1.4/EDP1.4 Conversion chip ： Long Xun LT6711GX

1. explain

LT6711GX Yes PD Controller HDMI2.1 to DP1.4a converter .

about HDMI2.1 Input ,LT6711GX It can be configured as 3/4 passageway . Adaptive equalization makes it suitable for long cable applications , Maximum bandwidth up to 32Gbps. It supports the highest resolution [email protected] Or compress data [email protected]（ Bypass mode ）.

about DP1.4a Output , It consists of 4 Data channels , Support 1.62Gbps,2.7Gbps,5.4Gbps,8.1Gbps Link rate . Built in optional SSC The function can reduce EMI effect .

To adapt to the latest USB Type-C System ,LT6711GX Integrated CC Logic and PD controller , To reduce the complexity of mobile system design and BOM cost .

The device can be operated automatically through an integrated microprocessor , The microprocessor uses embedded software SPI Flash memory for firmware storage . System control can also be configured I2C Implement from interface .

2. function •
HDMI2.1 Receiver
• DP1.4a The emitter
• USB Type-C
• Digital audio input or output
• other

3. application

• Mobile system 、VR/AR
• Cellular phones 、PAD/ The tablet
• Digital cameras and digital cameras
• Encrypted dog