信号完整性设计中的抖动与振铃消除技术

针对高速信号传输中码间干扰引起的抖动问题，提出了一种新型电流模式预加重电路，与传统结构相比，该新型电路不仅降低了电路复杂度，而且通过双边沿预加重提高了工作速度．针对低压差分信号传输的振铃问题，在考虑芯片压焊线模型以及负载的情况下，提出了一种基于阻抗匹配方法的振铃消除技术，有效缓解了输出振铃现象．通过对仿真和测试眼图进行讨论，验证了新方法的实用性．

Jitter and ringing cancellation techniques for signal integrity design

This paper focus mainly on the research on jitter and ringing for signal integrity design. To optimize the jitter caused by ISI (ISI: Inter-Symbol Interference) during high speed signal transmission, a novel current-mode pre-emphasis circuit is presented. Compared with the traditional structure, this novel circuit not only improves the operation speed by pre-emphasizing in both the posedge and negedge of the signal, but also reduces the circuit complexity. Furthermore, with the consideration of the bonding wire model and the chip load, a technique based on impedance matching is proposed to reduce the ringing in LVDS(Low-Voltage Differential Signaling). Simulation and measurement results of the eye-diagram are analyzed, proving the applicability of the proposed circuit and technique.