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Stable phase relationship over multiple ADF4360

Question asked by chevalier on Jul 8, 2011
Latest reply on Aug 2, 2011 by icollins

Hello all,


I have two ADF4360 that are generating two different frequencies from the same 10MHz references. Device #1 generates 800MHz while #2, 1800MHz.


As you can see, 1800MHz is not an integer multiple of 800MHz. However, there are exactly 9 1800MHz periods in 4 800MHz periods. My application needs that the rising edge of the 1800MHz is synchronized with that of the 800MHz every 4 800MHz period. This means that I need the phase relationship of the two clocks to accurately repeat every 4 800MHz cycles.


Is this achievable with the ADF4360 (or maybe with another device)?