公开(公告)号：US20060087339A1

公开(公告)日：2006-04-27

申请号：US11247846

申请日：2005-10-11

申请人： Hoe-ju Chung ,  Jae-jun Lee ,  Kyu-hyoung Kim

发明人： Hoe-ju Chung ,  Jae-jun Lee ,  Kyu-hyoung Kim

IPC分类号： H03K19/003

CPC分类号： H04L25/0278

摘要： An impedance adjustment circuit for controlling an impedance of a variable impedance circuit includes a calibration circuit including a replica of the variable impedance circuit and configured to generate an impedance control signal for the variable impedance circuit based on a voltage generated at the replica of the variable impedance circuit in response to a reference current. The calibration circuit may be configured to generate the reference current based on a reference resistor coupled thereto. In particular, the calibration circuit may be configured to match a current in the replica of the variable impedance circuit and a current in the reference resistor to generate the voltage at the replica of the variable impedance circuit.

摘要翻译： 用于控制可变阻抗电路的阻抗的阻抗调节电路包括：校准电路，包括可变阻抗电路的副本，并且被配置为基于在可变阻抗的复制品处产生的电压产生用于可变阻抗电路的阻抗控制信号 电路响应于参考电流。 校准电路可以被配置为基于与其耦合的参考电阻产生参考电流。 特别地，校准电路可以被配置为使可变阻抗电路的副本中的电流与参考电阻中的电流相匹配，以在可变阻抗电路的复制品处产生电压。

公开(公告)号：US07295033B2

公开(公告)日：2007-11-13

申请号：US11247846

申请日：2005-10-11

申请人： Hoe-ju Chung ,  Jae-jun Lee ,  Kyu-hyoung Kim

发明人： Hoe-ju Chung ,  Jae-jun Lee ,  Kyu-hyoung Kim

IPC分类号： H03K19/003

CPC分类号： H04L25/0278

摘要： An impedance adjustment circuit for controlling an impedance of a variable impedance circuit includes a calibration circuit including a replica of the variable impedance circuit and configured to generate an impedance control signal for the variable impedance circuit based on a voltage generated at the replica of the variable impedance circuit in response to a reference current. The calibration circuit may be configured to generate the reference current based on a reference resistor coupled thereto. In particular, the calibration circuit may be configured to match a current in the replica of the variable impedance circuit and a current in the reference resistor to generate the voltage at the replica of the variable impedance circuit.

摘要翻译： 用于控制可变阻抗电路的阻抗的阻抗调节电路包括：校准电路，包括可变阻抗电路的副本，并且被配置为基于在可变阻抗的复制品处产生的电压产生用于可变阻抗电路的阻抗控制信号 电路响应于参考电流。 校准电路可以被配置为基于与其耦合的参考电阻产生参考电流。 特别地，校准电路可以被配置为使可变阻抗电路的副本中的电流与参考电阻中的电流相匹配，以在可变阻抗电路的复制品处产生电压。