公开(公告)号：WO2023034003A1

公开(公告)日：2023-03-09

申请号：PCT/US2022/040084

申请日：2022-08-11

Applicant: QUALCOMM INCORPORATED

Inventor： LI, Alvin Siu-Chi ,  CHAO, Yue ,  PARK, Dongmin ,  YOON, Heui In ,  O'SULLIVAN, Tomas ,  YU, Jianjun ,  TANG, Yiwu

IPC: H03L7/08 ,  H03L7/081 ,  H03L7/197 ,  G04F10/00

Abstract: A method of quantization noise cancellation in a phase-locked loop (PLL) is provided according to certain aspects. The PLL includes a phase detector having a first input configured to receive a reference signal and a second input configured to receive a feedback signal. The method includes delaying the reference signal by a first time delay, delaying the feedback signal by a second time delay, receiving a delta-sigma modulator (DSM) error signal, and adjusting the first time delay and the second time delay in opposite directions based on the DSM error signal.