Voltage-controlled oscillator for low-voltage, wide frequency range operation
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United States of America Patent
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Sep 11, 2007
Grant Date -
Mar 15, 2007
app pub date -
Sep 12, 2005
filing date -
Sep 12, 2005
priority date (Note) -
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status (Latency Note)
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Abstract
In one embodiment, an apparatus comprises a voltage-controlled oscillator (VCO) that comprises a circuit coupled to receive an input control voltage to the VCO and configured to generate a second voltage responsive to the input control voltage, a summator coupled to receive the input control voltage and the second voltage, and an oscillator coupled to receive the output voltage of the summator. The summator is configured to combine the input control voltage and the second voltage to generate the output voltage. The oscillator is configured to oscillate an output signal, wherein a frequency of oscillation of the output signal is controlled by the output voltage of the summator.
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