[ADV7390] Abnormal sine pulses during Vertical blanking on NTSC output.

Hi,

I have a question about ADV7390.

My customer uses ADV7390 for his project.
He can see abnormal waveforms during V blanking.

I summuized the question to attached file "Vblanikng_Waveform.xlsx".
Please refer it.

Thank you!
Best regards.
Tamu

XLSX

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