Voltage controlled oscillator having digitally controlled phase adjustment and method therefor

作者: Hector Sanchez , Zhonghai Shi

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摘要: A VCO has a plurality of MIGFETs coupled to provide phase adjustment in response receiving digital control signals. The includes ring oscillator implemented as serially inverters. circuit is the output each inverter. stage comprises predetermined number MIGFETs. In one embodiment, half are used speed-up phase/frequency OUTPUT signal amount other slow-down requires relatively less surface area, simple, and easy implement.

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