公开(公告)号：WO2020236557A1

公开(公告)日：2020-11-26

申请号：PCT/US2020/033071

申请日：2020-05-15

Applicant: QUALCOMM INCORPORATED

Inventor： MEHDIZAD TALEIE, Shahin ,  SAPUTRA, Nitz ,  JIANG, Chen ,  SEDIGHI, Behnam ,  CHAMAS, Ibrahim Ramez ,  ASURI, Bhushan Shanti ,  SEO, Dongwon

IPC: H04B1/04 ,  H03M1/66

Abstract: A radio frequency digital-to-analog converter (RF-DAC) transmitter is provided that includes an in-phase channel, a quadrature-phase channel, a first intermediate-phase channel, and a second intermediate-phase channel. Each channel is configured to convert a respective baseband signal to an RF signal where each channel includes a pair of interleaved RF-DACs for producing a pair of interleaved RF signals and a subtractor.