发明名称 |
Methods and apparatus for generating two-tone calibration signals for performing linearity calibration |
摘要 |
Certain aspects of the present disclosure provide methods and apparatus for generating a two-tone signal for performing linearity calibration of a radio frequency (RF) circuit. One example apparatus generally includes a tone generating circuit configured to generate a first single-tone signal from a digital clock signal and a mixer connected with the tone generating circuit and configured to mix the first single-tone signal with a second single-tone signal to provide a two-tone signal having frequencies at a sum and a difference of frequencies of the first and second single-tone signals. |
申请公布号 |
US9231716(B2) |
申请公布日期 |
2016.01.05 |
申请号 |
US201414265078 |
申请日期 |
2014.04.29 |
申请人 |
QUALCOMM INCORPORATED |
发明人 |
Richmond Jesse Aaron;Wang Cheng-Han;Vahid Far Mohammad Bagher;Zeng Yi;Ko Jin-Su |
分类号 |
H04L27/06;H04B17/21;H04L7/033 |
主分类号 |
H04L27/06 |
代理机构 |
Patterson & Sheridan, L.L.P. |
代理人 |
Patterson & Sheridan, L.L.P. |
主权项 |
1. A method for calibrating a receive path for wireless communications, comprising:
generating a first single-tone signal from a digital clock signal, in an apparatus having the receive path; and mixing the first single-tone signal with a second single-tone signal to provide a two-tone signal having frequencies at a sum and a difference of frequencies of the first and second single-tone signals. |
地址 |
San Diego CA US |