A Fully Integrated CMOS Phase-Locked Loop Frequency Synthesizer
Since we now have a high-quality CMOS integrated VCO and a high-speed eightmodulus prescaler, it is possible to realize the ultimate goal of this research, i.e. a complete PLL LO synthesizer for a mobile communication system, integrated in a standard CMOS process without any external components, trimming, or extra processing steps. The DCS-1800 system [ETSI 94] has been taken as a design example.
KeywordsPhase Noise Charge Pump Loop Filter Frequency Synthesizer Loop Bandwidth
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