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公开(公告)号：US08947119B2
公开(公告)日：2015-02-03
申请号：US13717521
申请日：2012-12-17
Applicant: SK hynix Inc.
Inventor： Dong Wook Jang
CPC classification number: H03K17/16 , H03K17/166 , H03K2217/0063 , H03K2217/0072
Abstract: An impedance calibration circuit includes a first calibration voltage driver configured to operate in response to a first enable signal, compare a first calibration voltage signal with a first reference voltage signal, and drive the first calibration voltage signal, a first control code generator configured to operate in response to a second enable signal, compare the first calibration voltage signal with a first target voltage signal, and generate a first control code signal, and a first reference voltage generator configured to generate the first reference voltage signal in response to the first control code signal.
Abstract translation: 阻抗校准电路包括：第一校准电压驱动器，被配置为响应于第一使能信号进行操作，将第一校准电压信号与第一参考电压信号进行比较，并驱动第一校准电压信号;第一控制代码发生器， 响应于第二使能信号，将第一校准电压信号与第一目标电压信号进行比较，并产生第一控制代码信号，以及第一参考电压发生器，被配置为响应于第一控制代码产生第一参考电压信号 信号。
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公开(公告)号：US10020808B2
公开(公告)日：2018-07-10
申请号：US15200064
申请日：2016-07-01
Applicant: SK hynix Inc.
Inventor： Dong Wook Jang
CPC classification number: H03K19/0005 , G11C7/10 , G11C7/1057 , G11C7/12 , G11C7/22 , G11C29/022 , G11C29/025 , G11C29/028 , G11C2207/2254
Abstract: An impedance calibration circuit includes a first reference resistor electrically coupled to a calibration pad, a second reference resistor which is coupled to the first reference resistor in parallel and a resistance value of the second reference resistor is varied according to an operation voltage mode, and a calibration circuit electrically coupled to the calibration pad and configured to generate a calibration code according to a resistance value formed by the first reference resistor and the second reference resistor and calibrate an impedance value in the calibration pad according to the calibration code.
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公开(公告)号：US10083763B2
公开(公告)日：2018-09-25
申请号：US15424547
申请日：2017-02-03
Applicant: SK hynix Inc.
Inventor： Dong Wook Jang , Kwan Su Shon , Yo Han Jeong
CPC classification number: G11C29/50008 , G11C29/022 , G11C29/028 , H03K19/0005
Abstract: An impedance calibration circuit may be provided. The impedance calibration circuit may include an adjusting circuit. The adjusting circuit may be configured to generate a calibration code based on a variation voltage, which may be applied to a calibration node coupled to a calibration pad, and a reference voltage. The adjusting circuit may be configured to apply a voltage, which may be generated according to a control signal generated based on an operational voltage mode in accordance with the calibration code, to the calibration node. The adjusting circuit may include a plurality of leg circuits. At least one of the leg circuits may include a plurality of legs configured to be selectively coupled to the calibration node based on the control signal.
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公开(公告)号：US08638152B2
公开(公告)日：2014-01-28
申请号：US13717580
申请日：2012-12-17
Applicant: SK Hynix Inc.
Inventor： Dong Wook Jang
IPC: H03H11/16
CPC classification number: H03K17/28 , H04L25/0264 , H04L25/0272 , H04L25/0278
Abstract: A signal transmission circuit includes a first selection driver configured to generate a first drive signal in response to an input signal and a first selection signal and drive a transmission signal in response to the first drive signal, and a second selection driver configured to delay the input signal by a first delay time to generate a first delay signal. The second selection driver generates a second drive signal in response to the first delay signal and a second selection signal, generates a first code signal in response to the input signal and the second selection signal, and drives the transmission signal in response to the second drive signal and the first code signal.
Abstract translation: 信号传输电路包括第一选择驱动器，其被配置为响应于输入信号和第一选择信号产生第一驱动信号并且响应于第一驱动信号驱动发送信号;以及第二选择驱动器，被配置为延迟输入 信号通过第一延迟时间产生第一延迟信号。 第二选择驱动器响应于第一延迟信号和第二选择信号产生第二驱动信号，响应于输入信号和第二选择信号产生第一代码信号，并响应于第二驱动器驱动发送信号 信号和第一码信号。
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