My customer are designing a product with ADV7513.
But when input higher speed resolution more than VGA,
PLL of ADV7513 can not be locked(Register 0x9E=0x00).
When input VGA, PLL can be locked.
Their ADV7513 have another incomprehensible issue.
The voltage on R_EXT pin equals approximately 1.0V
R_EXT voltage of ADV7511 on Eval boards(ADV7612, ADV7842, etc.) are approximately 0.5V.
Could anyone know why Their ADV7513 could not be locked and R_EXT voltage is approximatly 1.0V?