Hello, there. I'm producing sound systems. One of my devices came back from the customer and blew up all the roads and all the circuits. The high voltage is in the audio line. It was obvious. What type of protection circuit can I use to protect the audio line, or can you recommend integrated if available? There were 5 cards in the device. No more:)
I am afraid that NXP currently does not offer a suitable protection IC. I would recommend contacting other manufacturers such as TDK, Maxim, On Semi which might have such ICs in their portfolio.