公开(公告)号：US20100182014A1

公开(公告)日：2010-07-22

申请号：US12716822

申请日：2010-03-03

申请人： Raghu Sreeramaneni ,  Vijay Vankayala ,  Greg Blodgett

发明人： Raghu Sreeramaneni ,  Vijay Vankayala ,  Greg Blodgett

IPC分类号： G01R35/00

CPC分类号： H03K19/0005

摘要： Embodiments of the present invention include systems for calibrating an output circuit. A comparator is coupled to a calibration terminal and configured to determine whether the calibration terminal is in a first state coupled to a calibration resistor or in a second state. A calibration circuit is coupled to the calibration terminal and configured to generate a calibration value based in part on the presence or absence of the calibration resistor. An impedance selector is coupled to the calibration circuit, the comparator, and a default calibration value. The impedance selector is configured to select the default calibration value when the comparator indicates the calibration terminal is in the second state and to select the calibration value coupled from the calibration circuit when the comparator indicates the calibration terminal is in the first state.

摘要翻译： 本发明的实施例包括用于校准输出电路的系统。 比较器耦合到校准端子并且被配置为确定校准端子是处于耦合到校准电阻器的第一状态还是处于第二状态。 校准电路耦合到校准端子并且被配置为基于校准电阻器的存在或不存在而产生校准值。 阻抗选择器耦合到校准电路，比较器和默认校准值。 阻抗选择器被配置为当比较器指示校准端处于第二状态时选择默认校准值，并且当比较器指示校准端处于第一状态时选择从校准电路耦合的校准值。

公开(公告)号：US07982494B2

公开(公告)日：2011-07-19

申请号：US12716822

申请日：2010-03-03

申请人： Raghu Sreeramaneni ,  Vijay Vankayala ,  Greg Blodgett

发明人： Raghu Sreeramaneni ,  Vijay Vankayala ,  Greg Blodgett

IPC分类号： H03K17/16

CPC分类号： H03K19/0005

摘要： Embodiments of the present invention include systems for calibrating an output circuit. A comparator is coupled to a calibration terminal and configured to determine whether the calibration terminal is in a first state coupled to a calibration resistor or in a second state. A calibration circuit is coupled to the calibration terminal and configured to generate a calibration value based in part on the presence or absence of the calibration resistor. An impedance selector is coupled to the calibration circuit, the comparator, and a default calibration value. The impedance selector is configured to select the default calibration value when the comparator indicates the calibration terminal is in the second state and to select the calibration value coupled from the calibration circuit when the comparator indicates the calibration terminal is in the first state.

摘要翻译： 本发明的实施例包括用于校准输出电路的系统。 比较器耦合到校准端子并且被配置为确定校准端子是处于耦合到校准电阻器的第一状态还是处于第二状态。 校准电路耦合到校准端子并且被配置为基于校准电阻器的存在或不存在而产生校准值。 阻抗选择器耦合到校准电路，比较器和默认校准值。 阻抗选择器被配置为当比较器指示校准端处于第二状态时选择默认校准值，并且当比较器指示校准端处于第一状态时选择从校准电路耦合的校准值。

公开(公告)号：US07696778B1

公开(公告)日：2010-04-13

申请号：US12355593

申请日：2009-01-16

申请人： Raghu Sreeramaneni ,  Vijay Vankayala ,  Greg Blodgett

发明人： Raghu Sreeramaneni ,  Vijay Vankayala ,  Greg Blodgett

IPC分类号： H03K17/16

CPC分类号： H03K19/0005

摘要： Embodiments of the present invention include systems for calibrating an output circuit. A comparator is coupled to a calibration terminal and configured to determine whether the calibration terminal is in a first state coupled to a calibration resistor or in a second state. A calibration circuit is coupled to the calibration terminal and configured to generate a calibration value based in part on the presence or absence of the calibration resistor. An impedance selector is coupled to the calibration circuit, the comparator, and a default calibration value. The impedance selector is configured to select the default calibration value when the comparator indicates the calibration terminal is in the second state and to select the calibration value coupled from the calibration circuit when the comparator indicates the calibration terminal is in the first state.

摘要翻译： 本发明的实施例包括用于校准输出电路的系统。 比较器耦合到校准端子并且被配置为确定校准端子是处于耦合到校准电阻器的第一状态还是处于第二状态。 校准电路耦合到校准端子并且被配置为基于校准电阻器的存在或不存在而产生校准值。 阻抗选择器耦合到校准电路，比较器和默认校准值。 阻抗选择器被配置为当比较器指示校准端处于第二状态时选择默认校准值，并且当比较器指示校准端处于第一状态时选择从校准电路耦合的校准值。