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PECL input design of ADC clock

Question asked by jhshin on Jul 21, 2016
Latest reply on Jul 21, 2016 by DougI

My customer is considering PECL clock input for AD9640 and AD9643.

The reference circuit of the AD9640 and AD9643 on the datasheet is differed from each other as follows.


Please tell her what is the best solution for a 100 ohm termination resister ?