发明授权
US07956680B2 Low-noise DC offset calibration circuit and related receiver stage
有权
低噪声直流偏移校准电路及相关接收器级
- 专利标题： Low-noise DC offset calibration circuit and related receiver stage
- 专利标题（中）： 低噪声直流偏移校准电路及相关接收器级
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申请号： US12767812申请日： 2010-04-27
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公开(公告)号： US07956680B2公开(公告)日： 2011-06-07
- 发明人: Chi-Lun Lo , Yu-Hsin Lin
- 申请人： Chi-Lun Lo , Yu-Hsin Lin
- 申请人地址： TW Science-Based Industrial Park, Hsin-Chu
- 专利权人： Mediatek Inc.
- 当前专利权人： Mediatek Inc.
- 当前专利权人地址： TW Science-Based Industrial Park, Hsin-Chu
- 代理商 Winston Hsu; Scott Margo
- 主分类号： H03F1/02
- IPC分类号： H03F1/02
摘要：
A DC offset calibration circuit has a first resistor, a first switch, a second resistor, and a second switch. The first resistor is coupled to a first supply voltage. The first switch is coupled to the first resistor, to a first input of an amplifier, and to a first input resistor. A second end of the first input resistor is not coupled to the first supply voltage. The second resistor is coupled to a second supply voltage. The second switch is coupled to the second resistor, to a second input of the amplifier, and to a first end of a second input resistor. A second end of the second input resistor is not coupled to the second supply voltage.
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