ppg
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San Jose USA
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VCO / VCXO oscillation frequency varies with voltage applied at VC pin (see 'VC'O and 'VC'XO) ... but not for arbitrarily high speed signal through VC pin. VCO / VCXO includes low-pass in VC pin path to limit the signal bandwidth through VC pin or the (FM) "VCO / VCXO Modulation bandwith".
Accurate estimations of Modulation bandwith requires one to include circuit parasitics, Q of resonator used, ... . Final validation needs to be done using RF circuit simulators. But HOW this is precisely my question?
Regards, ppg
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