← 返回 JSSC 论文列表JSSC 2011第12期RF & Wireless65nmEqualizer
An Adaptation Engine for a 2x Blind ADC-Based CDR in 65 nm CMOS Behrooz Abiri Al
提出一种基于自适应引擎的盲采样ADC接收器，用于恢复5Gb/s信号
5 Gb/s, 13 dB衰减, 320 mV垂直开口, 192 mW功耗
自适应引擎盲采样ADC接收器均衡器CDR
▸创新点1：系统创新 - 采用三角波形作为期望波形替代传统的固定电平，解决了盲采样条件下均衡器输出难以准确整形的问题，显著提升了信号恢复质量（实测恢复5 Gb/s信号至320 mV垂直开口）。
▸创新点2：方法创新 - 提出基于自适应引擎的动态均衡策略，通过实时调整均衡器参数以适应信道变化（支持13 dB奈奎斯特频率衰减补偿），增强了系统鲁棒性。
▸创新点3：电路创新 - 在65 nm CMOS工艺下实现低功耗数字CDR架构（仅78 mW功耗），通过优化时序控制和算法简化，平衡了性能与能效比。
▸创新点4：架构创新 - 将盲采样ADC与自适应引擎深度集成，构建完整的2x采样接收机系统，突破了传统前馈均衡器的线性度限制。
Abstract
This paper proposes an adaptation engine for a 2
blind sampling ADC-based receiver. The proposed adaptive engine
uses a triangular desired waveform, instead of two fixed desired
levels, to shape the equalizer output in spite of blind nature of sam-
pling. The measured results confirm the adaptive engine restores a
5 Gb/s eye subjected to 13 dB of attenuation at Nyquist frequency
to an equivalent of 320 mV of vertical opening. The receiver con-
sumes 192 mW, out of which 78 mW is used by the digita