View Full Version : LVDS camera switch
Graeme
20th January 2026, 06:46 PM
Does anyone know of a commercial device that will switch between 2 LVDS cameras using a 12V supply? ICs are available but I don't fancy designing a pcb to make my own if a comercial switch is avaiable.
John_D4
5th February 2026, 11:09 PM
As in you’d like to switch between car reversing camera and caravan camera automatically? There is a solution already out there if that’s what you are after.
Graeme
6th February 2026, 05:53 AM
Manually would be my preference but I haven't seen anything suitable for my L405's digital camera that connects using a single coaxial cable. Switches for analogue video signals including UHD aren't suitable.
I could build one as ICs are available that are designed for switching multiple digital channels so I would use just 1 channel, but the design and build overhead isn't justified when there doesn't appear to be a market for such a switch and moving the connector for the camera module between the 2 camera connectors is quick.
RANDLOVER
6th February 2026, 07:24 AM
What about one of these...https://www.google.com/aclk?sa=L&ai=DChsSEwiKoNylpMOSAxWoxzwCHd4TMg8YACICCAEQHhoCc2 Y&ae=1&co=1&ase=2&gclid=EAIaIQobChMIiqDcpaTDkgMVqMc8Ah3eEzIPEAQYBCAB EgLcA_D_BwE&sph=&cid=CAASugHkaEi-EonR3doVoI2Zk3sQkNm0bz8-HLMCETr3wCd-pzBzGUQyUJh5E7t0A8NAieroUeXBoAUxrXUWpBVyO_C8oYtn8A nlj8JnuAjcvXTO7nBL9bPaorA9gOltqC-37M2L3rg_T9ie5FHhj_MWoHnw1s1fsb54iBR4R0J1xcakQeDJE 64Iu3MLfezbqUZqSHYKtTOqnxnvcNSW7Pn9R34KNgTe49Hs7Jb euNuK7Aa1Ko6EhwpYlHMUQUA&cce=2&category=acrcp_v1_34&sig=AOD64_3LuvRCucNDvjQwsTS5z9-HfrPZsg&ctype=5&q=&nis=4&ved=2ahUKEwjqrtelpMOSAxVV8zgGHVRyMAIQwg8oAHoECAwQG w&adurl=https://www.ebay.com.au/itm/305540114496%3Fchn%3Dps%26_ul%3DAU%26norover%3D1%2 6mkevt%3D1%26mkrid%3D705-139619-5960-0%26mkcid%3D2%26mkscid%3D101%26itemid%3D3055401144 96%26targetid%3D2365844797666%26device%3Dm%26mktyp e%3Dpla%26googleloc%3D9069127%26poi%3D%26campaigni d%3D23502353480%26mkgroupid%3D191893308923%26rlsat arget%3Dpla-2365844797666%26abcId%3D10594926%26merchantid%3D54 37583826%26gad_source%3D1%26gad_campaignid%3D23502 353480%26gbraid%3D0AAAAAD97CxQaCoOq6s8EawGQtf7npqV pM%26gclid%3DEAIaIQobChMIiqDcpaTDkgMVqMc8Ah3eEzIPE AQYBCABEgLcA_D_BwE
Graeme
6th February 2026, 07:44 AM
Thanks but they don't work with LVDS.
John_D4
6th February 2026, 08:12 AM
This is the sort of thing that I put in my 2013 D4. I used slave for the car and master for the caravan. 2 to 1 Auto Camera Switch System - VHEDIA (https://vhedia.com.au/product/2-to-1-auto-camera-switch-system/?srsltid=AfmBOop4_rVZb381CQhQOru9bt1NupJHsOMeNLBEc lnkD4vnrVBfSpN4)
RANDLOVER
6th February 2026, 11:01 AM
Thanks but they don't work with LVDS.
Sorry OP misunderstood, if I understand correctly, you'd like two signal cables into one coax input.
BradC
6th February 2026, 01:26 PM
Manually would be my preference but I haven't seen anything suitable for my L405's digital camera that connects using a single coaxial cable.
I've lashed out and spent plenty of $$ on a one off to make my life easier before. Even better now I don't have to etch my own fine pitch PCBs (thanks China). What are the connectors like on that Coax, given LVDS is balanced. Surely they're not using a conventional core and shield.
Graeme
6th February 2026, 02:41 PM
The car uses Fakra connectors. I made-up Fakra to SMA patch leads that terminate under the driver's seat as does the van camera coax because I feel that SMA are more robust than Fakra. I fitted BNC for the van connection because of their bayonet clip connection and that they are more robust again than SMA.
The coax looks like RG174 but I used RG316, being better quality for the 10m under the van. The picture out the back of the van is as crisp as from the car's cameras. The surround view shows a very long car.
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