raja.cedt
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Hi, As Tim said it all depends on your phase noise requirements. But in general for serial IO applications 800Mhz/V is okay at least for the all the standards below 8Gbps. Where as in case of wireless people say it's too high. Higher Kvco increase noise from loop filter(but this is very less compared to VCO,CP noise), this makes your vco very sensitive to power supply noise.
Have a proper estimations for the final jitter/phase noise.
Thanks, Raj.
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