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Original question:

CDCE62002: How to set the loop filter,is there any application note for me

CDCE62002: how can i estimate the phase noise when the input is 37.125MHz(LVCMOS),Output is 74.25MHz(LVDS),Icp=3.0mA,BW=663.145kHz

lin huang
Prodigy 210 points
Part Number: CDCE62002

in the datasheet,only list the Phase Noise for 30.72-MHz External Reference,how can i estimate the phase noise when the input is 37.125MHz(LVCMOS),Output is 74.25MHz(LVDS),Icp=3.0mA,BW=663.145kHz

thanks

  • 0
    TI__Guru** 107030 points
    Hi Huang,

    unfortunately, we don't have tool to estimate the phase noise of this device. In your application, if the VCO is also around 1.9GHz, then you can assume similar or slightly better phase noise than the numbers shown in Table 1 of the datasheet.
    Otherwise, you can choose another device which is supported by PLLatinum Sim.