Invention Grant
- Patent Title: Filter with combined resonator and integrator
- Patent Title (中): 滤波器与组合谐振器和积分器
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Application No.: US14038759Application Date: 2013-09-27
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Publication No.: US08952749B1Publication Date: 2015-02-10
- Inventor: Hung-Chieh Tsai , Chen-Yen Ho , Yu-Hsin Lin
- Applicant: Mediatek Inc.
- Applicant Address: TW Science-Based Industrial Park, Hsin-Chu
- Assignee: Mediatek Inc.
- Current Assignee: Mediatek Inc.
- Current Assignee Address: TW Science-Based Industrial Park, Hsin-Chu
- Agent Winston Hsu; Scott Margo
- Main IPC: H04B1/10
- IPC: H04B1/10 ; H03H11/04
Abstract:
A filter comprises an integrator, a signal feeding path, a first operational amplifier and a second capacitor. The integrator comprises a first input terminal and a first output terminal. The signal feeding path comprises: a first resistor, having a first terminal coupled to the first output terminal; a first capacitor, having a first terminal coupled to the second terminal of the first resistor; and a second resistor, having a first terminal coupled to the integrator and having a second terminal coupled to the second terminal of the first capacitor. The first operational amplifier comprises a second input terminal coupled to the second terminal of the first resistor and the first terminal of the first capacitor, and comprises a second output terminal. The second capacitor comprises a first terminal coupled to the second terminal of the first capacitor, and comprises a second terminal coupled to the second output terminal.
Information query
