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Technique for linearizing the voltage-to-frequency response of a VCO

  • US 8,294,525 B2
  • Filed: 06/18/2010
  • Issued: 10/23/2012
  • Est. Priority Date: 06/18/2010
  • Status: Expired due to Fees
First Claim
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1. A voltage controlled oscillator, comprising:

  • a plurality of current starved inverter stages, wherein a dedicated NMOS transistor as footer and a dedicated PMOS transistor as header is used for each delay stage, wherein the footer and the header both have a gate-to-source voltage that is equal to an input control voltage, and the input control voltage is also used as a supply voltage of the voltage controlled oscillator, wherein the input control voltage is connected to a source of the header and to a gate of the footer for each delay stage.

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