1. Introduction

Function: Input one channel of HDMI signal, and can output 4 channels of the same HDMI signal at the same time.
Applications: HDMI split screen, HDMI audio splitter, video conferencing, multimedia teaching, shopping mall display, large screen monitoring, set-top box distribution, etc.
Principle: Use MS9334 for HDMI 1 input and 4 outputs, and MS8005 for IIC control.

2. Purchase MS9334+MS8005

MS9334 is controlled by IIC, but I couldn't find the register manual of MS9334 after searching all over the Internet. It is the same as the previous MS9332, but there are ICs matching MS8005 for sale on Ma Yun.com, so I can use the ready-made ones without programming.
Purchase link:https://item.taobao.com/item.htm?spm=a230r.1.14.1.1210379foZpdlb&id=616620518752&ns=1&abbucket=10#detail

3. Summary

1. The video cables have already been routed differentially. It is recommended that they be routed the same length.

2. In the video, the laptop's own screen and the output 4 screen are used to compare. It can be seen that there is almost no delay. The MS9332 made before actually has a certain delay.

3.MS9334 generates a lot of heat when using 4 loads. It is recommended to add a heat sink:

4. Video Demonstration