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Clock input for AD9257

Question asked by Tak-8810 on Jul 11, 2014
Latest reply on Jul 11, 2014 by DougI

Hello support team,


Our customers have a few questions about the clock to external input to the AD9257.

It is written with respect to jitter in the P.22 in data sheet of AD9257.


1. When ANALOG INPUT FREQUENCY is 90MHz and 14bits, does Figure55 show that jitter needs to 0.125ps or less?
     If this recognition is incorrect, please teach me the description of Figure55.


2. There are several types of jitter. Please teach me the definition of jitter that are described in this section.

3. Please tell me if there is an element to be careful in the accuracy of the input clock in addition to the jitter and duty.