Trying to analyze PLL's that are using LC VCOs

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MineralWater321

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Hello.. im currently doing LC VCOs for a paper and i cant seem to understand how the differential output of LC VCOs connect with the rest of the PLL. i've seen some VCOs but they seem to only have single output. can anybody help?
 

MineralWater321 said:
Hello.. im currently doing LC VCOs for a paper and i cant seem to understand how the differential output of LC VCOs connect with the rest of the PLL. i've seen some VCOs but they seem to only have single output. can anybody help?
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Some LC VCOs are differential therefore differential outputs can be connected to PLLs prescaler/divider.These are generally RFIC circuits but there are some discrete differential VCOs too.
 
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