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

Claim 16:
17. A device comprising:
a voltage-controlled oscillator;
a digital-to-time converter that is controlled by a digital-to-time converter calibration loop, the digital-to-time converter calibration loop having a comparator configured to receive an output of a sampling phase detector of a phase locked loop, the output of the sampling phase detector of the phase locked loop also being supplied as a control source for a proportional control input of the voltage-controlled oscillator;
the digital-to-time converter calibration loop further configured to receive an output of the comparator and to provide a digital input to the digital-to-time converter, which provides an input to the sampling phase detector; and
an output of the comparator configured to supply a control source for an integral control input of the voltage-controlled oscillator,
wherein a circuit path between the comparator and the integral control input of the voltage-controlled oscillator is devoid of a transconductance amplifier.