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AD9161-FMCC-EBZ external clock commutation

Question asked by on Jan 23, 2018
Latest reply on Feb 2, 2018 by saberbf

Hi, dear colleagues!

There was a trouble with eval board AD9161-FMCC-EBZ and ADS7-V2 - with Configuration #1. There is no switching from on-board clock source (ADF4355) to external clock.

Hardware setup is done by description

Configuration #1: Use external signal generator as clock source


After setting, the output HMC849 was cheked and it was defined, that so no high logic level on output Vctrl at different programm settings, but the required state is a high level (for external clock commutation).

Could You clear, what's wrong? Is the board working good? Are there any errors in software?