Hi. I have 4 wires. 2 of them used for vcc and gnd. I need to send one analog signal and 2 sound signals (bidirectional signal) through other two wires. Have you any ideas how to implemend it?
This is a difficult problem to solve. We do have this new technology called A2B which is a di-directional two-wire bus that includes power for transporting audio. It cannot carry video so that is a possible problem for you. Here is a video Here is a link for more info: Automotive Audio Bus® | Analog Devices
I thought about you encoding the video and audio onto an RF carrier but then it will not be bi-directional and you probably will have a problem with RF emissions.
What kind of cable are you using? How long is the cable?
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