作者
Wanghua Wu, Chih-Wei Yao, Kunal Godbole, Ronghua Ni, Pei-Yuan Chiang, Yongping Han, Yongrong Zuo, Ashutosh Verma, Ivan Siu-Chuang Lu, Sang Won Son, Thomas Byunghak Cho
发表日期
2019/3/12
期刊
IEEE Journal of Solid-State Circuits
卷号
54
期号
5
页码范围
1254-1265
出版商
IEEE
简介
An analog fractional- sampling phase-locked loop (PLL) is presented. It achieves 75-fs rms jitter, integrated from 10 kHz to 10 MHz, and a −249.7-dB figure of merit (FoM) at the fractional- mode with a 52-MHz reference clock. The measured fractional spur is less than −64 dBc across the 5.5–7.3-GHz output frequency band. The PLL employs digital-to-time converter (DTC)-based sampling PLL architecture, high linearity DTC design techniques, background DTC gain calibration, and reference clock duty cycle correction (DCC) to improve the integrated phase noise (IPN) and fractional spur. This design meets the performance requirement of the 5G cellular 64-quadratic-amplitude modulation (QAM) standard in the 28-/39-GHz band, supporting multi-in multi-out (MIMO). This paper, implemented in a 28-nm CMOS process, is integrated in a 5G millimeter-wave cellular transceiver. This PLL consumes 18.9 …
学术搜索中的文章
W Wu, CW Yao, K Godbole, R Ni, PY Chiang, Y Han… - IEEE Journal of Solid-State Circuits, 2019