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数字混合信号设计工程师/Digital Mixed-Signal Design Engineer(J19202)
ChangXin Memory (CXMT) · 安徽省·合肥市, 上海市, 北京市
About The Role
- 全数字锁相环架构设计:主导全数字锁相环的架构规划,完成包括数字控制振荡器、时间数字转换器及数字环路滤波器的RTL实现,优化分数分频频率合成方案;
- 数字校准与补偿算法实现:设计并实现DCO粗/细调谐校准、TDC线性校正、温度/电压补偿等数字校准环路,以及锁检测、周期滑移检测和扩频时钟控制器;
- 混合信号验证与性能分析:搭建混合信号验证环境,通过时域仿真、相位噪声分析与抖动直方图验证,确保ADPLL性能满足系统指标;
- 数字滤波器与调制器控制逻辑开发:设计并优化高分辨率Sigma-Delta ADC的数字抽取滤波器,以及DAC失配校正、失调消除、增益/相位误差修调等数字校准引擎;
- RTL交付与物理实现:交付满足可综合性、可测试性及DFT要求的量产级RTL代码,主导逻辑综合、时序收敛与功耗优化,协同模拟团队定义数字/模拟接口及时钟方案。
- 教育背景与专业知识:硕士及以上学历,微电子、电子工程或相关专业;
- 专业技能与资格:具备RTL开发能力,能使用Verilog/SystemVerilog完成数字模块的设计与验证,能使用Synopsys/Cadence流程完成逻辑综合与时序分析;
- 行业与专业经验:有3年以上数字混合信号电路设计经验,有ADPLL或相关数模混合芯片流片经验;
- 项目/任务成果:参与过至少一款包含数字校准环路或Sigma-Delta ADC的芯片从设计到量产的完整流程;
- 其他要求:具有跨团队协作能力,能清晰定义数字/模拟接口与时钟域划分,推动方案落地与问题闭环。
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