The devices described in this document are typically used as lowâpower, phaseâlocked loop frequency synthesizers. When combined with an external lowâpass filter and voltageâcontrolled oscillator, these devices can provide all the remaining functions for a PLL frequency synthesizer operating up to the deviceâs frequency limit. For higher VCO frequency operation, a down mixer or a prescaler can be used between the VCO and the synthesizer IC.
These frequency synthesizer chips can be found in the following and other applications:
CATV TV Tuning
AM/FM Radios Scanning Receivers
TwoâWay Radios Amateur Radio
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