A $2\times 50\ \text{Gb}/\mathrm{s}$ Single-Ended MIMO PAM-4 Crosstalk Cancellation and Signal Reutilization Receiver in 28 nm CMOS

Zhong, Liping; Wang, Hongzhi; Wu, Weitao; Xiao, Wenbo; Luo, Xiongshi; Xu, Dongfan; Cheng, Xuxu; Li, Zhenghao; Fan, Taiyang; Pan, Quan

doi:10.1109/esscirc55480.2022.9911463

Cited by 2 publications

(1 citation statement)

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“…Furthermore, as it inherently adopts SE signaling, it is susceptible to noise, making it less robust in systems like HBM. Another prevalent approach involves direct compensation of distortion caused by crosstalk using equalizers [18]- [25]. Despite its effectiveness, this method introduces significant hardware complexity and overhead, worsening the overall I/O energy efficiency.…”

Section: Introductionmentioning

confidence: 99%

A 0.65-pJ/bit 3.6-TB/s/mm I/O Interface with XTalk Minimizing Affine Signaling for Next-Generation HBM with High Interconnect Density

Park,

Shin,

Kim

et al. 2024

Preprint

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This paper presents an I/O interface with Xtalk Minimizing Affine Signaling (XMAS), which is designed to support high-speed data transmission in die-to-die communication over silicon interposers or similar high-density interconnects susceptible to crosstalk. The operating principles of XMAS are elucidated through rigorous analyses, and its advantages over existing signaling are validated through numerical experiments. XMAS not only demonstrates exceptional crosstalk removing capabilities but also exhibits robustness against noise, especially simultaneous switching noise. Fabricated in a 28-nm CMOS process, the prototype XMAS transceiver achieves an edge density of 3.6 TB/s/mm and an energy efficiency of 0.65 pJ/b. Compared to the single-ended signaling, the crosstalk-induced peak-to-peak jitter of the received eye with XMAS is reduced by 75 % at 10 GS/s/pin data rate, and the horizontal eye opening extends to 0.2 UI at a bit error rate < 10 .

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Section: Introductionmentioning

confidence: 99%