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ADF4155 Int-N Mode

Question asked by 0dBc on Jan 12, 2015
Latest reply on Jan 12, 2015 by rbrennan

Hi ADI people,

 

Unlike ADF4159, there is no explicit control bit to disable the Σ-Δ modulator in ADF4155. Can ADF4155 be operated in true int-N mode? In the datasheet, it says: "If FRAC1 and FRAC2 = 0, the synthesizer operates in integer-N mode". If FRAC1 and FRAC2 are set to 0, does the Σ-Δ modulator keep running?

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