← 返回 JSSC 论文列表JSSC 2019第10期RF & Wireless28nmPAM-4Neural Network Accelerator
A 02527-Gbs PAM4NRZ Transceiver With Adaptive Power CDR and Jitter Analysis Yosh
提出一种支持PAM4/NRZ的多模收发器,具有自适应功耗CDR和抖动分析功能
28nm CMOS, 0.25-27Gb/s, 3.8pJ/bit (TX), 6.2pJ/bit (RX)
PAM4NRZ收发器时钟数据恢复抖动分析
▸创新点1:自适应超宽范围接收器(系统创新) - 采用宽范围相位检测器优化各速率下的抖动容限,同时支持时钟前向和时钟嵌入模式,实现0.25-27 Gb/s的超宽范围操作,比传统架构功耗降低33%。
▸创新点2:电源噪声稳定化发射器(电路创新) - 集成PAM4预加重驱动器和稳定器,有效降低失真影响和电源引起的抖动,通过内置干扰电路分析频率和激活率对系统的影响,提升信号完整性。
▸创新点3:多模接收器支持三种可选模式(方法创新) - 每种模式在抖动容限和功耗之间实现可配置权衡,自适应CDR控制器根据发射器抖动性能选择最优模式,确保互操作性同时降低功耗至6.2 pJ/bit。
▸创新点4:基于开环传递函数的CDR功耗与延迟分析(方法创新) - 首次从开环传递函数推导CDR功耗与延迟的量化关系,为高速链路设计提供理论优化依据。
Abstract
We propose a multimodal PAM4/nonreturn to
zero (NRZ) transceiver, including an adaptive ultra-wide range
receiver and power noise-stabilized transmitter. The multimodal
transmitter features a PAM4 emphasis driver and stabilizer,
which are applied to reduce distortion impact and power-induced
jitter. Installing an aggressor cir cuit allowed us to analyze the
influence on the input buffer of the interface block and the
influence on the whole system by varying the frequency and
activation rate. The m