集成电路与嵌入式系统2024，Vol.24Issue(3)：27-34,8.
一款400 μm2用于极短距离接收机具有中频补偿的56 Gb/s PAM4反相器型连续时间线性均衡器
A 400 μm2 56 Gb/s PAM4 inverter-based CTLE with mid-frequency compensation for extra short reach receivers
摘要
Abstract
High-speed extra short reach(XSR)wireline interfaces are an important technical solution for chiplets interconnection.The traditional continuous time linear equalizer(CTLE)based on current mode logic(CML)has gradually failed to meet the demand for high-density,miniaturization,and low-power consumption of chiplet data interfaces due to the use of high supply voltage and passive com-ponents.To address this problem,this paper proposes an inverter-based CTLE with mid-frequency compensation(MFC)to transmit 28 Gb/s non-return to zero(NRZ)signals as well as 56 Gb/s 4-level pulse amplitude modulation(PAM4)signals in XSR applications.The design is implemented in a 28 nm CMOS process with a core area of only 400 μm2.After an XSR channel at-9.4 dB@14 GHz,the post-layout simulation results show that the proposed CTLE improves the eye width of the 28 Gbaud NRZ and PAM4 signals by 0.14 UI and 0.41 UI,and the eye heights by 328 mV and 119 mV,respectively.The power consumption is 6.12 mW at 56 Gb/s PAM4 signaling.关键词
连续时间线性均衡器/反相器型/有源电感负载/中频补偿/四电平脉冲幅度调制/芯粒Key words
CTLE/inverter-based/active inductive load/mid-frequency compensation/PAM4/Chiplet分类
信息技术与安全科学引用本文复制引用
王梦豪,赵潇腾,董志成,张淼,刘术彬,朱樟明..一款400 μm2用于极短距离接收机具有中频补偿的56 Gb/s PAM4反相器型连续时间线性均衡器[J].集成电路与嵌入式系统,2024,24(3):27-34,8.基金项目
高能效多电平宽范围高速数据接口接收机关键技术研究(62374126) （62374126）
高效模拟前端集成电路和集成系统(62021004) （62021004）
超高速模数转换器集成电路测试验证系统(62227816) （62227816）
高速射频模数转换器芯片研究(2022YFB4401900). （2022YFB4401900）
