Relationship between jitter and power supply of ADV7610

Question

Hi, 
 According to our evaluation of the prototype board, we found that improving the quality of the PVDD supply led to better jitter characteristics for the parallel video signals and clock output from ADV7610. 
 Will improving the quality of CVDD supply also lead to improvement of jitter characteristics? 
 Best regards,

PoornimaSubramani · Accepted Answer

Hi, 
 In order to improve the better jitter characteristics, We need to ensure CVDD & PVDD supply is clean & Well filtered(not noisy).This is important for JTOL Kindly note that, PVDD is very important maintaining the Video stability So it is highly desirable to provide separate regulated or heavily filtered supplies for each of these circuitry groups (CVDD and PVDD). 
 
 Thanks, 
 Poornima)

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Relationship between jitter and power supply of ADV7610

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