4-layer board is 200 yuan, 2-layer board is 5 yuan, the price difference is too big. I want to ask if there are not many wirings on the high-speed or precision AD/DA board, can we reserve pads for eac
[align=center][size=5]{:1_123:}How many challenges are there in USB development and testing? Tektronix will help you break through~ [/size][/align][align=left][size=5][b]Activity content [/b][/size] [