Abstract
This paper presents a 6.7 GHz phase-locked loop frequency synthesizer in a low-cost 0.8 /spl mu/m/25 GHz-f/sub T/ silicon bipolar production technology. The total power consumption of 82 mW at 3 V includes the power consumption of the voltage-controlled oscillator, the phase-frequency detector, the charge pump, the loop filter, and the divider. The synthesizer offers a phase noise performance of -103 dBc/Hz at 1 MHz offset from the carrier. 6.7 GHz is the highest operating frequency for silicon-based synthesizers published.
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