公开(公告)号：WO2022094521A1

公开(公告)日：2022-05-05

申请号：PCT/US2021/071838

申请日：2021-10-13

Applicant: QUALCOMM INCORPORATED

Inventor： LIU, Xilin ,  MAHMOUDIDARYAN, Parisa ,  MEHDIZAD TALEIE, Shahin ,  RASHIDI, Negar ,  SEO, Dongwon

IPC: H03M1/10 ,  H03K5/05 ,  H03K5/156 ,  H03M1/66 ,  H03K5/00

Abstract: Certain aspects of the present disclosure generally relate to circuitry and techniques for digital -to-analog conversion. For example, certain aspects provide an apparatus for digital-to-analog conversion. The apparatus generally includes a mixing-mode digital-to-analog converter (DAC), a duty cycle adjustment circuit having an input coupled to an input clock node and having an output coupled to a clock input of the mixing-mode DAC, and a current comparison circuit having inputs coupled to outputs of the mixing-mode DAC and having an output coupled to a control input of the duty cycle adjustment circuit.