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DC25_PAPER_Track02_FastBERAnalysisTechniquefor_Pang.pdf

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1、 Fast BER Analysis Technique for Next Generation Chiplet Simultaneous Bi-Directional Transceiver Tingting.pang,T-Head Semiconductor Co.,Ltd.Yanbin.chen,T-Head Semiconductor Co.,Ltd.Jialong.dong,Julin Technology Co.,Ltd Abstract For the explosively increasing demand for higher bandwidth in Chiplet ap

2、plication,Single-ended simultaneous bidirectional(SBD)signaling is attractive since it doubles the date rate per pin.To achieve the ultra-low bit error rate(BER)design target for SBD transceiver,a fast,accurate and efficient simulation technique is needed.Therefore,this paper proposes a novel statis

3、tical modeling methodology based on double-edge response(DER),and captures the generation of self-interference which is the key for SBD signaling modeling.These will involve asymmetric rising and falling edges,nonlinear filtering effects,and uncertain phase relationship between the outbound TX signa

4、l and near-end inbound received RX signal.The accuracy of the proposed method is validated with spice simulation for a high-speed SBD link.Key words:simultaneous bidirectional,self-interference,statistical simulation Author(s)Biography Tingting Pang,a senior signal integrity engineer at T-Head Semic

5、onductor Co.,Ltd.She is working on DDR/D2D modeling,simulation and validation.Her areas of interest are system-level signal/power integrity and high-speed transceiver design.Yanbin Chen,a signal integrity engineering manager at T-Head Semiconductor Co.,Ltd.,responsible for advanced package design,DD

6、R/D2D system performance development,and simulation methodology/validation.He received his B.S.and M.S.from East China Normal University,in 2005,2008 respectively.Jialong Dong,graduated from the university of science and technology of China,Hefei,China.He joined Julin Technology Co.,Ltd as a signal

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1. **研究背景**:针对Chiplet应用中带宽需求激增,提出单端同时双向(SBD)信号技术,可提升每引脚数据速率一倍,但需实现超低误码率(BER)设计目标。 2. **核心方法**:基于双边缘响应(DER)的统计建模方法,捕获自干扰生成机制,考虑非对称上升/下降沿、非线性滤波效应及TX/RX信号相位不确定性,平衡仿真精度与效率。 3. **验证结果**:通过SPICE仿真验证,DER方法在16Gbps SBD链路中,眼高(EH)和眼宽(EW)误差分别控制在3.2%和3.4%以内。 4. **关键挑战**:自干扰源于主/复制驱动器增益/时序失配、接收器非线性及相位差异,需通过相位训练机制优化系统裕量。 5. **未来方向**:研究高效多边缘响应(MER)方法及自干扰消除技术(如消除均衡器)。
**SBD信号挑战?** **自干扰如何建模?** **相位训练影响?**
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