题目/Title：A Gaussian-Filtered Fully-Balanced FSK Modulator with Integer-N PLL Based 1+-Point Modulation

作者/Author：
                        Cong Ding,Woogeun Rhee,Zhihua Wang

会议/Conference：ISCAS 2019

地点/Location：Sapporo, Japan

年份/Issue Date：2019.26-29 May

页码/pages：pp. 1 - 4

摘要/Abstract：
This paper presents an energy-efficient high data rate constant-envelope modulator based on a frequency-domain on-off keying (FOOK) modulation method. The fully-balanced frequency-shift keying (FSK) feature makes it possible for an integer-N PLL to perform modulation with a VCO only (1+-point modulation). By having Gaussian filtering and carrier spreading (CS) techniques, the proposed Gaussian FOOK (G-FOOK) modulation offers a fully-balanced FSK with good bandwidth efficiency and spectrum compliance. A prototype 5GHz G-FOOK modulator is designed with 65nm CMOS process to verify the proposed modulation. The modulator achieves a data rate of 50Mb/s, consuming 6.8mW from a 1V supply. Simulation results show that the proposed modulator can also achieve a data rate as high as 1Gb/s modulation.