Why I see Timing Violation If audio_clk Is Not Driven At Same Clock Source As ls_clk?

Description

You will observe timing violation in the TX core if you are not driving the audio_clk with the same clock source as ls_clk. This is due to audio_info_ai[48] and audio_info_ai[47:0] are not synchronized to the same clock domain internally. 

Resolution

You can perform clock domain synchronization for audio_info_ai[48] to ls_clk externally if you are driving audio_clk with different clock source as ls_clk.