发明授权
US08823567B2 Resonator, delta-sigma modulator, and wireless communication device
有权
谐振器，Δ-Σ调制器和无线通信设备
- 专利标题： Resonator, delta-sigma modulator, and wireless communication device
- 专利标题（中）： 谐振器，Δ-Σ调制器和无线通信设备
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申请号： US13534716申请日： 2012-06-27
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公开(公告)号： US08823567B2公开(公告)日： 2014-09-02
- 发明人: Yosuke Mitani , Kazuo Matsukawa , Masao Takayama , Koji Obata , Shiro Dosho
- 申请人： Yosuke Mitani , Kazuo Matsukawa , Masao Takayama , Koji Obata , Shiro Dosho
- 申请人地址： JP Osaka
- 专利权人： Panasonic Corporation
- 当前专利权人： Panasonic Corporation
- 当前专利权人地址： JP Osaka
- 代理机构： McDermott Will & Emery LLP
- 优先权： JP2010-010023 20100120
- 主分类号： H03M3/00
- IPC分类号： H03M3/00 ; H03H11/04
摘要：
Two T filters, one of which includes two resistive elements and one capacitive element and the other of which includes two capacitive elements and one resistive element, are inserted in a negative-feedback section of an operational amplifier, and a resistive element and a capacitive element are connected between each of intermediate nodes and a signal input terminal. A resistive element and a capacitive element which are connected to each other in parallel are connected between the signal input terminal and an inverting input terminal of the operational amplifier. With this configuration, overall admittances where elements connected to the corresponding intermediate nodes are in parallel connection are equal to each other.
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