A 5 Gb/s low power current-mode transmitter with pre-emphasis for serial links

A multi-standard compatible transmitter with pre-emphasis for high speed serial links is presented. Based on the comparison between voltage mode（VM） and current mode（CM） output driver architectures,a low power CM output driver with reverse scaling and bias current filtering technique is proposed.A 2...

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Bibliographic Details
Published inJournal of semiconductors Vol. 34; no. 7; pp. 128 - 134
Main Author 吕俊盛 巨浩 叶茂 张锋 赵建中 周玉梅
Format Journal Article
LanguageEnglish
Published 01.07.2013
Subjects
Channels
CMOS技术
Filtering
High speed
Jitter
Links
Semiconductors
Serials
Transmitters
串行链路
低功耗
发射机
电流模式
输出驱动器
预加重
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ISSN1674-4926
DOI10.1088/1674-4926/34/7/075002

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Summary:A multi-standard compatible transmitter with pre-emphasis for high speed serial links is presented. Based on the comparison between voltage mode（VM） and current mode（CM） output driver architectures,a low power CM output driver with reverse scaling and bias current filtering technique is proposed.A 2-tap pre-emphasis filter is used to reduce the intersymbol interference caused by the low-pass channel,and a high speed,low power combined serializer is implemented to convert 10 bit parallel data into a serial data stream.The whole transmitter is fabricated in 65 nm 1.2 V/2.5 V CMOS technology.It provides an eye height greater than 800 mV for data rates of both 2.5 Gb/s and 5 Gb/s.The output root mean square jitter of the transmitter at 5 Gb/s is only 9.94 ps without pre-emphasis.The transmitter consumes 41.2 mA at 5 Gb/s and occupies only 240×140μm~2.
Bibliography:A multi-standard compatible transmitter with pre-emphasis for high speed serial links is presented. Based on the comparison between voltage mode（VM） and current mode（CM） output driver architectures,a low power CM output driver with reverse scaling and bias current filtering technique is proposed.A 2-tap pre-emphasis filter is used to reduce the intersymbol interference caused by the low-pass channel,and a high speed,low power combined serializer is implemented to convert 10 bit parallel data into a serial data stream.The whole transmitter is fabricated in 65 nm 1.2 V/2.5 V CMOS technology.It provides an eye height greater than 800 mV for data rates of both 2.5 Gb/s and 5 Gb/s.The output root mean square jitter of the transmitter at 5 Gb/s is only 9.94 ps without pre-emphasis.The transmitter consumes 41.2 mA at 5 Gb/s and occupies only 240×140μm~2.
11-5781/TN
Lu Junsheng, Ju Hao, Ye Mao, Zhang Feng, Zhao Jianzhong and Zhou Yumei（ Institute of Microelectronics, Chinese Academy of Sciences, Beijing 100029, China）
high speed serial links; low power; transmitter; pre-emphasis; reverse scaling; bias current filtering
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ISSN:1674-4926
DOI:10.1088/1674-4926/34/7/075002