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APPARATUS FOR REDUCING PERIODIC JITTER IN A RING OSCILLATOR

  • US 20150171839A1
  • Filed: 12/17/2013
  • Published: 06/18/2015
  • Est. Priority Date: 12/17/2013
  • Status: Active Grant
First Claim
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1. An apparatus comprising:

  • a first power supply node to provide power supply current;

    a ring oscillator, coupled to the first power supply node, to generate an oscillating output according to change in the power supply current provided to the ring oscillator; and

    a second power supply node;

    a circuit, coupled to the second power supply node, to replicate time-average behavior of the ring oscillator; and

    a feedback mechanism having inputs coupled to the first and second power supply nodes, and an output to control current in the circuit.

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