公开(公告)号：US20130021056A1

公开(公告)日：2013-01-24

申请号：US13626555

申请日：2012-09-25

申请人： Huy M. Nguyen ,  Vijay Gadde ,  Benedict Lau

发明人： Huy M. Nguyen ,  Vijay Gadde ,  Benedict Lau

IPC分类号： H03K19/003

CPC分类号： H03K19/0005 ,  H03K5/24 ,  H03K19/01 ,  H03K21/08 ,  H04L25/0278 ,  H04L25/0298

摘要： Described are on-die termination (ODT) systems and methods that facilitate high-speed communication between a driver die and a receiver die interconnected via one or more signal transmission lines. An ODT control system in accordance with one embodiment calibrates and maintains termination resistances and drive currents to produce optimal output swing voltages. Comparison circuitry employed to calibrate the reference resistance is also used to calibrate the drive current. Termination elements in some embodiments are divided into two adjustable resistive portions, both of which are designed to minimize capacitive loading. One portion is optimized to produce a relatively high range of adjustment, while the other is optimized for fine-tuning and glitch-free switching.

公开(公告)号：US07525338B2

公开(公告)日：2009-04-28

申请号：US11639119

申请日：2006-12-13

申请人： Huy M. Nguyen ,  Vijay Gadde ,  Benedict Lau

发明人： Huy M. Nguyen ,  Vijay Gadde ,  Benedict Lau

IPC分类号： H03K19/003

CPC分类号： H03K19/0005 ,  H03K5/24 ,  H03K19/01 ,  H03K21/08 ,  H04L25/0278 ,  H04L25/0298

摘要： Described are on-die termination (ODT) systems and methods that facilitate high-speed communication between a driver die and a receiver die interconnected via one or more signal transmission lines. An ODT control system in accordance with one embodiment calibrates and maintains termination resistances and drive currents to produce optimal output swing voltages. Comparison circuitry employed to calibrate the reference resistance is also used to calibrate the drive current. Termination elements in some embodiments are divided into two adjustable resistive portions, both of which are designed to minimize capacitive loading. One portion is optimized to produce a relatively high range of adjustment, while the other is optimized for fine-tuning and glitch-free switching.

摘要翻译： 描述了便于通过一个或多个信号传输线路互连的驱动器管芯和接收器管芯之间的高速通信的管芯端接（ODT）系统和方法。 根据一个实施例的ODT控制系统校准并维持终端电阻和驱动电流以产生最佳输出摆幅电压。 用于校准参考电阻的比较电路也用于校准驱动电流。 一些实施例中的终端元件被分成两个可调节的电阻部分，它们都被设计成最小化容性负载。 一部分被优化以产生相对较高的调节范围，而另一部分被优化用于微调和无故障切换。

公开(公告)号：US09191243B2

公开(公告)日：2015-11-17

申请号：US13626555

申请日：2012-09-25

申请人： Huy M. Nguyen ,  Vijay Gadde ,  Benedict Lau

发明人： Huy M. Nguyen ,  Vijay Gadde ,  Benedict Lau

IPC分类号： H03K19/003 ,  H04L25/02 ,  H03K19/00 ,  H03K19/01

CPC分类号： H03K19/0005 ,  H03K5/24 ,  H03K19/01 ,  H03K21/08 ,  H04L25/0278 ,  H04L25/0298

摘要： Described are on-die termination (ODT) systems and methods that facilitate high-speed communication between a driver die and a receiver die interconnected via one or more signal transmission lines. An ODT control system in accordance with one embodiment calibrates and maintains termination resistances and drive currents to produce optimal output swing voltages. Comparison circuitry employed to calibrate the reference resistance is also used to calibrate the drive current. Termination elements in some embodiments are divided into two adjustable resistive portions, both of which are designed to minimize capacitive loading. One portion is optimized to produce a relatively high range of adjustment, while the other is optimized for fine-tuning and glitch-free switching.

公开(公告)号：US20110193591A1

公开(公告)日：2011-08-11

申请号：US13088964

申请日：2011-04-18

申请人： Huy M. Nguyen ,  Vijay Gadde ,  Benedict Lau

发明人： Huy M. Nguyen ,  Vijay Gadde ,  Benedict Lau

IPC分类号： H03K19/003

CPC分类号： H03K19/0005 ,  H03K5/24 ,  H03K19/01 ,  H03K21/08 ,  H04L25/0278 ,  H04L25/0298

摘要： Described are on-die termination (ODT) systems and methods that facilitate high-speed communication between a driver die and a receiver die interconnected via one or more signal transmission lines. An ODT control system in accordance with one embodiment calibrates and maintains termination resistances and drive currents to produce optimal output swing voltages. Comparison circuitry employed to calibrate the reference resistance is also used to calibrate the drive current. Termination elements in some embodiments are divided into two adjustable resistive portions, both of which are designed to minimize capacitive loading. One portion is optimized to produce a relatively high range of adjustment, while the other is optimized for fine-tuning and glitch-free switching.

摘要翻译： 描述了用于通过一个或多个信号传输线路互连的驱动器管芯和接收器管芯之间的高速通信的管芯端接（ODT）系统和方法。 根据一个实施例的ODT控制系统校准并维持终端电阻和驱动电流以产生最佳输出摆幅电压。 用于校准参考电阻的比较电路也用于校准驱动电流。 一些实施例中的终端元件被分成两个可调节的电阻部分，它们都被设计成最小化容性负载。 一部分被优化以产生相对较高的调节范围，而另一部分被优化用于微调和无故障切换。

公开(公告)号：US08278968B2

公开(公告)日：2012-10-02

申请号：US13088964

申请日：2011-04-18

申请人： Huy M. Nguyen ,  Vijay Gadde ,  Benedict Lau

发明人： Huy M. Nguyen ,  Vijay Gadde ,  Benedict Lau

IPC分类号： H03K19/003

CPC分类号： H03K19/0005 ,  H03K5/24 ,  H03K19/01 ,  H03K21/08 ,  H04L25/0278 ,  H04L25/0298

摘要： Described are on-die termination (ODT) systems and methods that facilitate high-speed communication between a driver die and a receiver die interconnected via one or more signal transmission lines. An ODT control system in accordance with one embodiment calibrates and maintains termination resistances and drive currents to produce optimal output swing voltages. Comparison circuitry employed to calibrate the reference resistance is also used to calibrate the drive current. Termination elements in some embodiments are divided into two adjustable resistive portions, both of which are designed to minimize capacitive loading. One portion is optimized to produce a relatively high range of adjustment, while the other is optimized for fine-tuning and glitch-free switching.

摘要翻译： 描述了用于通过一个或多个信号传输线路互连的驱动器管芯和接收器管芯之间的高速通信的管芯端接（ODT）系统和方法。 根据一个实施例的ODT控制系统校准并维持终端电阻和驱动电流以产生最佳输出摆幅电压。 用于校准参考电阻的比较电路也用于校准驱动电流。 一些实施例中的终端元件被分成两个可调节的电阻部分，它们都被设计成最小化容性负载。 一部分被优化以产生相对较高的调节范围，而另一部分被优化用于微调和无故障切换。

公开(公告)号：US20100259295A1

公开(公告)日：2010-10-14

申请号：US12819939

申请日：2010-06-21

申请人： Huy M. Nguyen ,  Vijay Gadde ,  Benedict Lau

发明人： Huy M. Nguyen ,  Vijay Gadde ,  Benedict Lau

IPC分类号： H03K17/16

CPC分类号： H03K19/0005 ,  H03K5/24 ,  H03K19/01 ,  H03K21/08 ,  H04L25/0278 ,  H04L25/0298

摘要： Described are on-die termination (ODT) systems and methods that facilitate high-speed communication between a driver die and a receiver die interconnected via one or more signal transmission lines. An ODT control system in accordance with one embodiment calibrates and maintains termination resistances and drive currents to produce optimal output swing voltages. Comparison circuitry employed to calibrate the reference resistance is also used to calibrate the drive current. Termination elements in some embodiments are divided into two adjustable resistive portions, both of which are designed to minimize capacitive loading. One portion is optimized to produce a relatively high range of adjustment, while the other is optimized for fine-tuning and glitch-free switching.

摘要翻译： 描述了用于通过一个或多个信号传输线路互连的驱动器管芯和接收器管芯之间的高速通信的管芯端接（ODT）系统和方法。 根据一个实施例的ODT控制系统校准并维持终端电阻和驱动电流以产生最佳输出摆幅电压。 用于校准参考电阻的比较电路也用于校准驱动电流。 一些实施例中的终端元件被分成两个可调节的电阻部分，它们都被设计成最小化容性负载。 一部分被优化以产生相对较高的调节范围，而另一部分被优化用于微调和无故障切换。

公开(公告)号：US07741868B2

公开(公告)日：2010-06-22

申请号：US12506074

申请日：2009-07-20

申请人： Huy M. Nguyen ,  Vijay Gadde ,  Benedict Lau

发明人： Huy M. Nguyen ,  Vijay Gadde ,  Benedict Lau

IPC分类号： H03K19/003

CPC分类号： H03K19/0005 ,  H03K5/24 ,  H03K19/01 ,  H03K21/08 ,  H04L25/0278 ,  H04L25/0298

摘要： Described are on-die termination (ODT) systems and methods that facilitate high-speed communication between a driver die and a receiver die interconnected via one or more signal transmission lines. An ODT control system in accordance with one embodiment calibrates and maintains termination resistances and drive currents to produce optimal output swing voltages. Comparison circuitry employed to calibrate the reference resistance is also used to calibrate the drive current. Termination elements in some embodiments are divided into two adjustable resistive portions, both of which are designed to minimize capacitive loading. One portion is optimized to produce a relatively high range of adjustment, while the other is optimized for fine-tuning and glitch-free switching.

摘要翻译： 描述了用于通过一个或多个信号传输线路互连的驱动器管芯和接收器管芯之间的高速通信的管芯端接（ODT）系统和方法。 根据一个实施例的ODT控制系统校准并维持终端电阻和驱动电流以产生最佳输出摆幅电压。 用于校准参考电阻的比较电路也用于校准驱动电流。 一些实施例中的终端元件被分成两个可调节的电阻部分，它们都被设计成最小化容性负载。 一部分被优化以产生相对较高的调节范围，而另一部分被优化用于微调和无故障切换。

公开(公告)号：US07564258B2

公开(公告)日：2009-07-21

申请号：US11893804

申请日：2007-08-17

申请人： Huy M. Nguyen ,  Vijay Gadde ,  Benedict Lau

发明人： Huy M. Nguyen ,  Vijay Gadde ,  Benedict Lau

IPC分类号： H03K19/003

CPC分类号： H03K19/0005 ,  H03K5/24 ,  H03K19/01 ,  H03K21/08 ,  H04L25/0278 ,  H04L25/0298

摘要： Described are on-die termination (ODT) systems and methods that facilitate high-speed communication between a driver die and a receiver die interconnected via one or more signal transmission lines. An ODT control system in accordance with one embodiment calibrates and maintains termination resistances and drive currents to produce optimal output swing voltages. Comparison circuitry employed to calibrate the reference resistance is also used to calibrate the drive current. Termination elements in some embodiments are divided into two adjustable resistive portions, both of which are designed to minimize capacitive loading. One portion is optimized to produce a relatively high range of adjustment, while the other is optimized for fine-tuning and glitch-free switching.

摘要翻译： 描述了用于通过一个或多个信号传输线路互连的驱动器管芯和接收器管芯之间的高速通信的管芯端接（ODT）系统和方法。 根据一个实施例的ODT控制系统校准并维持终端电阻和驱动电流以产生最佳输出摆幅电压。 用于校准参考电阻的比较电路也用于校准驱动电流。 一些实施例中的终端元件被分成两个可调节的电阻部分，它们都被设计成最小化容性负载。 一部分被优化以产生相对较高的调节范围，而另一部分被优化用于微调和无故障切换。

公开(公告)号：US06924660B2

公开(公告)日：2005-08-02

申请号：US10657605

申请日：2003-09-08

申请人： Huy M. Nguyen ,  Vijay Gadde ,  Benedict Lau

发明人： Huy M. Nguyen ,  Vijay Gadde ,  Benedict Lau

IPC分类号： H03K19/003 ,  H04L25/02

CPC分类号： H03K19/0005 ,  H03K5/24 ,  H03K19/01 ,  H03K21/08 ,  H04L25/0278 ,  H04L25/0298

摘要： Described are on-die termination (ODT) systems and methods that facilitate high-speed communication between a driver die and a receiver die interconnected via one or more signal transmission lines. An ODT control system in accordance with one embodiment calibrates and maintains termination resistances and drive currents to produce optimal output swing voltages. Comparison circuitry employed to calibrate the reference resistance is also used to calibrate the drive current. Termination elements in some embodiments are divided into two adjustable resistive portions, both of which are designed to minimize capacitive loading. One portion is optimized to produce a relatively high range of adjustment, while the other is optimized for fine-tuning and glitch-free switching.

摘要翻译： 描述了便于通过一个或多个信号传输线路互连的驱动器管芯和接收器管芯之间的高速通信的管芯端接（ODT）系统和方法。 根据一个实施例的ODT控制系统校准并维持终端电阻和驱动电流以产生最佳输出摆幅电压。 用于校准参考电阻的比较电路也用于校准驱动电流。 一些实施例中的终端元件被分成两个可调节的电阻部分，它们都被设计成最小化容性负载。 一部分被优化以产生相对较高的调节范围，而另一部分被优化用于微调和无故障切换。

公开(公告)号：US07928757B2

公开(公告)日：2011-04-19

申请号：US12819939

申请日：2010-06-21

申请人： Huy M. Nguyen ,  Vijay Gadde ,  Benedict Lau

发明人： Huy M. Nguyen ,  Vijay Gadde ,  Benedict Lau

IPC分类号： H03K19/003

CPC分类号： H03K19/0005 ,  H03K5/24 ,  H03K19/01 ,  H03K21/08 ,  H04L25/0278 ,  H04L25/0298

摘要： Described are on-die termination (ODT) systems and methods that facilitate high-speed communication between a driver die and a receiver die interconnected via one or more signal transmission lines. An ODT control system in accordance with one embodiment calibrates and maintains termination resistances and drive currents to produce optimal output swing voltages. Comparison circuitry employed to calibrate the reference resistance is also used to calibrate the drive current. Termination elements in some embodiments are divided into two adjustable resistive portions, both of which are designed to minimize capacitive loading. One portion is optimized to produce a relatively high range of adjustment, while the other is optimized for fine-tuning and glitch-free switching.

摘要翻译： 描述了用于通过一个或多个信号传输线路互连的驱动器管芯和接收器管芯之间的高速通信的管芯端接（ODT）系统和方法。 根据一个实施例的ODT控制系统校准并维持终端电阻和驱动电流以产生最佳输出摆幅电压。 用于校准参考电阻的比较电路也用于校准驱动电流。 一些实施例中的终端元件被分成两个可调节的电阻部分，它们都被设计成最小化容性负载。 一部分被优化以产生相对较高的调节范围，而另一部分被优化用于微调和无故障切换。