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AD9914/5 DC power

Question asked by DRS-des on Oct 18, 2012
Latest reply on Oct 22, 2012 by DSB

What is DC power for AD9914/5 when clocked at 400MHz? Will it scale from> 2.5 Watt to < 1 Watt as the clock freq is decreased?


My goal is to generate 128M with a 400M clock, phase noise = -148/-165dBc/Hz @ 1k &10kHz offset. The residual phase noise plots in the data sheet are pretty close to this perfromance; I wonder if the plots in the data sheet would improve if the Clk was reduced from 2.5/3.5GHz to 400MHz?