Dear Sir/Madam,

AD9517-3 on-chip VCO frequency range is 1.75GHz-2.25GHz, but the manual's Table 28. showoing using a 10 MHz Reference Input to Generate Different VCO frequency  less than 100MHz, is this conflict with teh  VCO's frequency range 1.75GHz-2.25GHz?


  • 0
    •  Analog Employees 
    on Mar 13, 2017 9:51 PM

    Hello hpkamen,

    Table 28 is a general purpose table intended for the entire AD9516/17/18 family, and the first ten entries are clearly for an external (and much lower frequency) VCXO.

    Looking at Table 28, it's clear that the only entry that is suitable for the -3 is the 15th entry which has a VCO frequency of 2000 MHz.

    -Paul Kern