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SYSREF signal of AD9625 on the EVA board.

Question asked by AkiraO on May 14, 2015
Latest reply on May 25, 2015 by AkiraO



My customer has designed am ADC system referring the schematics of AD9625 EVB. And I have received some questions from the customer. Accorind to the schematics of AD9625 EVB, SYSREF of AD9625 is connected to SYNC_OUT of AD9525. Is the SYSREF signal supplied by AD9525 in the EVB?


If yes, can AD9525 supply SYNC_OUT without REF signal? I can't see any inout signal to REFA, REFB and REFC of AD9525. If we can get SYNC_OUT signal without REF input, could you please tell me how to get it?


I have refered the attached schematics.


Best regards,