1. 桂林电子科技大学 广西精密导航技术与应用重点实验室,广西,桂林,541004
2. 桂林电子科技大学 机构 信息与通信学院,广西,桂林,541004
纸质出版:2016
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徐卫林, 吴迪, 韦雪明. 基于Verilog-A与Matlab的行为描述模型的CDR设计[J]. 微电子学与计算机, 2016, 33(6): 104-108.
XU Wei-lin, WU Di, WEI Xue-ming. Design of CDR Based on Behavioral Model Using Verilog-A and Matlab[J]. 2016, 33(6): 104-108.
根据模拟集成电路系统级和行为级快速验证的需求
针对一种穿戴式超宽带射频接收前端的500 Mbps的时钟数据恢复电路(CDR)进行设计.传统CDR的Verilog-A模型一般是基于理想环路进行环路参数的分析
误差较大.利用Verilog-A与Matlab进行行为级建模时将电荷泵充放电电流的大小和时间不匹配等非理想因素考虑进来
并进行相位噪声的拟合.行为级和电路级的对比仿真验证了行为级模型的快速性和准确性
并对CDR电路级的设计具有前瞻性的指导意义.
In accordance with the demand of fast verification of system level and behavioral level about analog integrated circuit
especially the 500 Mb/s clock and data recovery (CDR) circuit used in the receiver of UWB on-body network.The traditional CDR based on Verilog-A has been used to analyze the loop parameters with big random error in ideal condition.However
in this work
the non-ideal factors such as mismatch of magnitude and time between charge up and down current is proposed
which is also modeled by Verilog-A.Meanwhile
the total phase noise of the loop is synthesized by Matlab script.The comparison of circuit level and behavioral level verify the quickly and exactly characteristics of behavioral model
which means they have significant forward-looking directive meaning to circuit design of CDR.
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