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1. 发明授权

US07961817B2 AC coupling circuit integrated with receiver with hybrid stable common-mode voltage generation and baseline wander compensation 失效
标题翻译：交流耦合电路与接收器集成，具有混合稳定的共模电压产生和基线漂移补偿
公开(公告)号：US07961817B2
公开(公告)日：2011-06-14
申请号：US11634671
申请日：2006-12-06
申请人： Yikui (Jen) Dong , Cathy Ye Liu , Freeman Yingquan Zhong , Shao Ming Hsu
发明人： Yikui (Jen) Dong , Cathy Ye Liu , Freeman Yingquan Zhong , Shao Ming Hsu
IPC分类号： H04L25/06 , H04L25/10
CPC分类号： H04L25/0276 , H04L25/06
摘要： In a receiver, an AC-coupling solution uses a fully integrated circuit for simultaneously providing both baseline wander compensation and common-mode voltage generation. Usefully, an integrated capacitor is placed between the receiver input pin and the input buffer, and a high resistive impedance element is connected to the internal high-speed data node after the capacitor. An on-chip voltage generation and correction circuit is connected to the other side of the impedance element to generate a common-mode voltage, and to provide dynamic, fine adjustment for the received data voltage level. The voltage correction circuit is controlled by the feedback of data detected by the clock and data recovery unit (CDRU) of the receiver. The feedback data passes through a weighting element, wherein the amount of feedback gain is adjustable to provide a summing weight and thereby achieve a desired BLW compensation. Register bits are used to control an on-chip reference voltage generator that consists of a resistor ladder to generate the reference voltage.
摘要翻译：在接收机中，AC耦合解决方案使用完全集成电路，同时提供基线漂移补偿和共模电压生成。有用的是，在接收器输入引脚和输入缓冲器之间放置一个集成的电容器，并且高电阻阻抗元件连接到电容器之后的内部高速数据节点。片上电压产生和校正电路连接到阻抗元件的另一侧以产生共模电压，并为接收的数据电压电平提供动态的微调。电压校正电路由接收机的时钟和数据恢复单元（CDRU）检测到的数据的反馈来控制。反馈数据通过加权元件，其中反馈增益的量可调，以提供求和权重，从而实现所需的BLW补偿。寄存器位用于控制片上参考电压发生器，该发生器由电阻梯形成，用于产生参考电压。

2. 发明申请

US20080063091A1 AC coupling circuit integrated with receiver with hybrid stable common-mode voltage generation and baseline-wander compensation 失效
标题翻译：交流耦合电路与接收器集成，具有混合稳定的共模电压产生和基线漂移补偿
公开(公告)号：US20080063091A1
公开(公告)日：2008-03-13
申请号：US11634671
申请日：2006-12-06
申请人： Yikui (Jen) Dong , Cathy Ye Liu , Freeman Yingquan Zhong , Shao Ming Hsu
发明人： Yikui (Jen) Dong , Cathy Ye Liu , Freeman Yingquan Zhong , Shao Ming Hsu
IPC分类号： H04L25/00
CPC分类号： H04L25/0276 , H04L25/06
摘要： In a receiver, an AC-coupling solution uses a fully integrated circuit for simultaneously providing both baseline wander compensation and common-mode voltage generation. Usefully, an integrated capacitor is placed between the receiver input pin and the input buffer, and a high resistive impedance element is connected to the internal high-speed data node after the capacitor. An on-chip voltage generation and correction circuit is connected to the other side of the impedance element to generate a common-mode voltage, and to provide dynamic, fine adjustment for the received data voltage level. The voltage correction circuit is controlled by the feedback of data detected by the clock and data recovery unit (CDRU) of the receiver. The feedback data passes through a weighting element, wherein the amount of feedback gain is adjustable to provide a summing weight and thereby achieve a desired BLW compensation. Register bits are used to control an on-chip reference voltage generator that consists of a resistor ladder to generate the reference voltage.
摘要翻译：在接收机中，AC耦合解决方案使用完全集成电路，同时提供基线漂移补偿和共模电压生成。有用的是，在接收器输入引脚和输入缓冲器之间放置一个集成的电容器，并且高电阻阻抗元件连接到电容器之后的内部高速数据节点。片上电压产生和校正电路连接到阻抗元件的另一侧以产生共模电压，并为接收的数据电压电平提供动态的微调。电压校正电路由接收机的时钟和数据恢复单元（CDRU）检测到的数据的反馈来控制。反馈数据通过加权元件，其中反馈增益的量可调，以提供求和权重，从而实现所需的BLW补偿。寄存器位用于控制片上参考电压发生器，该发生器由电阻梯形成，用于产生参考电压。

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