A Reflection and Crosstalk Canceling Continuous-Time Linear Equalizer for High-Speed DDR SDRAM

This paper presents a reflection and crosstalk canceling continuous-time linear equalizer (CTLE) for high-speed DDR SDRAM interface. To enhance the voltage margin in noisy multi-drop DDR SDRAM channel, the proposed CTLE cancels reflection noise by common-mode compensation and compensates crosstalk b...

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Bibliographic Details
Published in2021 Symposium on VLSI Circuits pp. 1 - 2
Main Authors Hong, Seunghwan, Bae, Chang-Hyun, Sung, Yoo-Chang, Kim, Jaewoong, Yoon, Junsub, Kim, Sangwoo, Baek, Jinhyeok, Cho, Cheongryong, Shin, Useung, Kim, Sang-Kyeom, Jung, Hwan-Chul, Chang, Ho-Jun, Kim, Jang-Hoo, Hwang, Jeongsik, Kim, Hyunki, Lee, Ki-Won, Kim, Dongmin, Jeong, Han-Ki, Kim, Myung-O, Sohn, Kyomin, Ihm, Jeong-Don, Yoo, Changsik, Hwang, Sang Joon
Format Conference Proceeding
LanguageEnglish
Published JSAP 13.06.2021
Subjects
Crosstalk
Equalizers
Information filters
Limiting
Reflection
SDRAM
Very large scale integration
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Summary:This paper presents a reflection and crosstalk canceling continuous-time linear equalizer (CTLE) for high-speed DDR SDRAM interface. To enhance the voltage margin in noisy multi-drop DDR SDRAM channel, the proposed CTLE cancels reflection noise by common-mode compensation and compensates crosstalk by limiting RC filter charging to overcome inversion of common-mode information. The reflection and crosstalk canceling CTLE is implemented in a DRAM process and improves the average voltage margin of 16GB RDIMM at 3.2Gbps with 28.3mV.
ISSN:2158-5636
DOI:10.23919/VLSICircuits52068.2021.9492390