| A Parallel Coupled QVCO and Differential Injection-Locked Frequency Divider in 0.13 μm CMOS |
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Bong-Hyuk Park, Kwang-Chun Lee |
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Mobile RF Research Team, Electronics and Telecommunications Research Institute |
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| Abstract |
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A fully integrated parallel-coupled 6-GHz quadrature voltage-controlled oscillator (QVCO) has been designed. The symmetrical parallel-coupled quadrature VCO is implemented using 0.13-${mu}m$ CMOS process. The measured phase noise is -101.05 dBc/Hz at an offset frequency of 1 MHz. The tuning range of 710 MHz is achieved with a control voltage ranging from 0.3 to 1.4 V. The average output phase error is about $1.26^{circ}$ including cables and connectors. The QVCO dissipates 10 mA including buffer from the 1.5 V supply voltage. The output characteristic of the differential injection-locked frequency divider (DILFD), which has similar topology to the QVCO, is presented. |
| Key words:
QVCO, CMOS, Phase Noise, Phase Error, DILFD |
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