Patent ID: 11901906
Assignee: CISCO TECHNOLOGY, INC.
Field: Basic communication processes (Electrical engineering)
Classification: CPC H  G | IPC G  H

Claim 10:
11. A device comprising:
a voltage-controlled oscillator having a proportional control input and an integral control input;
a sampling phase detector having an output that supplies a control signal for the proportional control input to the voltage-controlled oscillator;
a digital-to-time converter connected to an input of the sampling phase detector;
a reference frequency generator that supplies a reference frequency clock signal to the sampling phase detector via the digital-to-time converter; and
a digital-to-time converter control loop, comprising a comparator that compares the output of the sampling phase detector to a reference voltage, that controls an input of the digital-to-time converter,
wherein the output of the comparator also supplies the control signal to control the integral control input of the voltage-controlled oscillator, and
wherein a circuit path between the comparator and the integral control input of the voltage-controlled oscillator is devoid of a transconductance amplifier.