A High-Output-Swing 64-Gb/s PAM-4 Transmitter with a 4-Tap Hybrid FFE in 28-nm CMOS

doi:10.1587/elex.21.20240104

	A High-Output-Swing 64-Gb/s PAM-4 Transmitter with a 4-Tap Hybrid FFE in 28-nm CMOS
	Xu, Hua 1,2; Zheng, Xuqiang 1; Wang, Zedong 1,2; Cai, Chen 1; Zhen, Wenxiang 1; Yuan, Guojun 3,4; Hao, Qinfen 3,4; Guo, Xuan 1; Jin, Zhi 1
	2024-03-06
发表期刊	IEICE ELECTRONICS EXPRESS
ISSN	1349-2543
页码	6
摘要	This article presents a high -output -swing 64-Gb/s four -level pulse amplitude modulation (PAM -4) transmitter, in which a 4 -tap hybrid feed -forward equalizer (FFE) employing both fractionally -spaced preemphasis (FS -PE) and baud -spaced de -emphasis (BS -DE) is proposed. The PE technique enlarges the output swing by directly stacking pre -distortion pulses, and naturally consumes less power as it boosts only the desired symbols. The FS -based pre/post1 taps equalize the high -frequency loss, provide a wide compensation range beyond the Nyquist frequency, and realize a flexible equalization capability, while the BS -DE -based post2 tap compensates for the low -frequency channel loss. Fabricated in a 28-nm CMOS process, the 64-Gb/s transmitter obtains a differential output swing of 1.4 Vppd with an energy efficiency of 1.53 pJ/bit.
关键词	Baud-spaced de-emphasis BS-DE feed-forward equalizer FFe four level pulse amplitude modulation PAM-4 fractionally spaced pre emphassi FS-Pe high speed transmitter high swing
DOI	10.1587/elex.21.20240104
收录类别	SCI
语种	英语
资助项目	National Key R&D Program of China[2021YFB2206602] ; National Natural Science Foundation of China[92373119]
WOS研究方向	Engineering
WOS类目	Engineering, Electrical & Electronic
WOS记录号	WOS:001181335200001
出版者	IEICE-INST ELECTRONICS INFORMATION COMMUNICATION ENGINEERS
引用统计
文献类型	期刊论文
条目标识符	http://119.78.100.204/handle/2XEOYT63/38795
专题	中国科学院计算技术研究所期刊论文_英文
通讯作者	Zheng, Xuqiang; Jin, Zhi
作者单位	1.Chinese Acad Sci, Inst Microelect, Beijing 100029, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Chinese Acad Sci, Inst Comp Technol, Beijing 100190, Peoples R China 4.Wuxi Inst Interconnect Technol, Wuxi 214105, Peoples R China
推荐引用方式 GB/T 7714	Xu, Hua,Zheng, Xuqiang,Wang, Zedong,et al. A High-Output-Swing 64-Gb/s PAM-4 Transmitter with a 4-Tap Hybrid FFE in 28-nm CMOS[J]. IEICE ELECTRONICS EXPRESS,2024:6.
APA	Xu, Hua.,Zheng, Xuqiang.,Wang, Zedong.,Cai, Chen.,Zhen, Wenxiang.,...&Jin, Zhi.(2024).A High-Output-Swing 64-Gb/s PAM-4 Transmitter with a 4-Tap Hybrid FFE in 28-nm CMOS.IEICE ELECTRONICS EXPRESS,6.
MLA	Xu, Hua,et al."A High-Output-Swing 64-Gb/s PAM-4 Transmitter with a 4-Tap Hybrid FFE in 28-nm CMOS".IEICE ELECTRONICS EXPRESS (2024):6.