Actually this is a basic question I can't answer myself to be honest.
I am using a MCU which requires a HSE:
Now, this is for a crystal, but how do I connect a crystal oscillator with the MCU?
The oscillator's datasheet says: LINK
But where do I connect the oscillator's output to the correct PIN on the MCU -> Should it be "OSC_IN" or "OSC_OUT" pin on the MCU like this(?):