芯粒互连数据接口中用于噪声消除的弦和信令技术OACSTPCD

Chiplet technology has garnered significant attention owing to its potential to enhance integrated chip yield,reduce research costs,and bolster efficiency.To facilitate the interconnection of distinct chips,high-speed data interfaces are imperative.With the aim of augmenting total bandwidth density,chiplet interconnections predominantly employ single-ended signals for data transmission,which are susceptible to common-mode noise,synchronous switching noise,and crosstalk noise.Chord signaling transforms single-ended signals into pseudo-differential signals through encoding and decoding transmitted data,enabling noise suppression and enhancement of signal trans-mission quality.Furthermore,as a modulation technique,chord signaling is extensively adopted due to its process independence,architec-tural flexibility,and strong process portability.This paper conducts a comprehensive review of prevalent chord signaling techniques,in-cluding analysis and summary of their performance.Finally,it offers a perspective on the chord signaling development.