公开(公告)号：US12206361B2

公开(公告)日：2025-01-21

申请号：US18078723

申请日：2022-12-09

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Hagen Graf ,  Danielle Griffith

IPC: H03B5/36 ,  H03B5/04

Abstract: In examples, an electronic device comprises an oscillator circuit configured to provide an output signal and a controller coupled to the oscillator circuit. The controller is configured to receive first and second target rates; dynamically adjust a frequency accuracy of the output signal based on the first target rate; and dynamically adjust an amplitude of the output signal based on the second target rate.

公开(公告)号：US20250030427A1

公开(公告)日：2025-01-23

申请号：US18524711

申请日：2023-11-30

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Marius Moe ,  Hagen Graf ,  Tarjei Aaberge

IPC: H03L7/093 ,  H03L7/089 ,  H03L7/099

Abstract: A circuit for a phase-locked loop is described herein. The circuit includes a phase frequency detector configured to determine a phase error, a loop filter coupled to the phase frequency detector and configured to provide a clock control signal based on the phase error, and a controller coupled to the phase frequency detector and to the loop filter. The controller is configured to receive the phase error, detect a behavior of the phase error, and, responsive to the behavior of the phase error, perform a response that includes causing the phase frequency detector to adjust the phase error and causing the loop filter to adjust the clock control signal. Thus, the circuit may reduce settling time, overshoot, and/or undershoot in an output clock generated based on the clock control signal.