How to use an external signal as clock to syncrhonize multiple ESP32-S3

[felipesandoval]

Hello, I am trying to synchronize multiple ESP32-S3 chips with a single external clock signal in place of individual 40 MHz crystals for an antenna array. I have seen it done in the project ESPARGOS, but they do not go into detail if the connection should be into XTAL_P or XTAL_N. Thanks.