多通道50G PAM4收发机测试数据集

数据中心、HPC、高端服务器领域SerDes PHY须具备中长距传输和低误码特性。多通道50G PHY芯片面临收发机端口带宽受限和高频阻抗失配的问题，需要研究芯片共封装的带宽扩展和宽频带阻抗匹配技术，降低高频衰减和信号发射。50G PHY的中长距传输面临均衡器能力不足的问题，需要研究部分码元的FFE均衡技术，解决单位码元FFE高频补偿范围不足问题；研究基于脉冲叠加的预加重技术，解决去加重均衡对传输信号幅度压缩的问题；研究基于DSP的多抽头数字域FFE+DFE均衡技术，解决高速模拟DFE抽头数量限制速率和不能实现码前均衡的问题；研究基于多比特误差检测的自适应均衡技术，实现信道衰减的高精度实时补偿。针对时钟抖动问题，需要研究基于注入锁定的时钟产生技术，解决多相时钟的低抖动产生问题；研究基于延迟优化的时钟恢复技术，解决时钟的低抖动高带宽恢复问题。针对功耗预算紧张问题，需研究ADC比特数和均衡器抽头数动态调整技术，解决差异信道下功耗浪费问题等。针对封装与信道设计难题，需要建立全链路电磁场模型，进行芯片端口-封装-信道的协同设计，解决高速数据传输的信号完整性问题。In the fields of data centers, high-performance computing (HPC), and high-end servers, SerDes PHY must support medium-to-long reach transmission and low bit error rate (BER) performance. Multi-channel 50G PHY chips face issues of limited transceiver port bandwidth and high-frequency impedance mismatch, thus necessitating research on bandwidth expansion and wideband impedance matching technologies for chip co-packaging to reduce high-frequency attenuation and unwanted signal emission. For medium-to-long reach transmission of 50G PHY, the insufficient equalization capability poses a critical challenge: research on partial-symbol Feed Forward Equalizer (FFE) equalization technology is required to address the insufficient high-frequency compensation range of single-symbol FFE; research on pulse superposition-based pre-emphasis technology is needed to resolve the amplitude compression of transmitted signals induced by de-emphasis equalization; research on Digital Signal Processor (DSP)-based multi-tap digital-domain FFE + Decision Feedback Equalizer (DFE) equalization technology is developed to tackle the problems that the limited tap count of high-speed analog DFE restricts data rate and prohibits pre-cursor equalization; research on multi-bit error detection-based adaptive equalization technology is implemented to achieve high-precision real-time compensation for channel attenuation. Aiming at clock jitter issues, research on injection-locked clock generation technology is required to achieve low-jitter multi-phase clock generation, and research on delay-optimized clock recovery technology is needed to address low-jitter, high-bandwidth clock recovery. For the tight power budget, dynamic adjustment technologies of Analog-to-Digital Converter (ADC) bit width and equalizer tap count should be studied to mitigate power waste in heterogeneous channels. To address the challenges in packaging and channel design, a full-link electromagnetic field model needs to be established, and co-design of chip ports, packaging and channels shall be conducted to resolve signal integrity issues in high-speed data transmission.

搜集汇总

背景与挑战

背景概述

该数据集聚焦于数据中心、HPC和高端服务器领域，针对多通道50G PAM4收发机的中长距传输和低误码特性需求，涉及芯片共封装带宽扩展、宽频带阻抗匹配、均衡器技术优化以及时钟抖动和功耗控制等关键技术研究。它旨在解决高速数据传输中的信号完整性问题，并提供相关测试数据以支持技术开发。