发明授权
US07834797B2 Switched capacitor circuit, switched capacitor filter, and sigma-delta A/D converter
有权
开关电容电路，开关电容滤波器和Σ-ΔA / D转换器
- 专利标题： Switched capacitor circuit, switched capacitor filter, and sigma-delta A/D converter
- 专利标题（中）： 开关电容电路，开关电容滤波器和Σ-ΔA / D转换器
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申请号： US12273287申请日： 2008-11-18
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公开(公告)号： US07834797B2公开(公告)日： 2010-11-16
- 发明人: Sachio Iida , Atsushi Yoshizawa
- 申请人： Sachio Iida , Atsushi Yoshizawa
- 申请人地址： JP Tokyo
- 专利权人： Sony Corporation
- 当前专利权人： Sony Corporation
- 当前专利权人地址： JP Tokyo
- 代理机构： Finnegan, Henderson, Farabow, Garrett & Dunner, L.L.P.
- 优先权： JPP2007-307826 20071128
- 主分类号： H03M1/12
- IPC分类号： H03M1/12
摘要：
A switched capacitor circuit includes a capacitor that performs sampling, a first switch that is provided between the capacitor and an input terminal, and a second switch that is provided between the capacitor and an output terminal. The first switch and the second switch receive an input of a clock signal and turn on and off. The capacitor is a variable capacitance element in which the value of the capacitance changes in synchronization with the clock signal.
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