Invention Grant
US08390370B2 Filter circuit and communication device 失效
滤波电路及通讯装置

Filter circuit and communication device
Abstract:
There is provided a filter circuit that includes: a flying capacitor which maintains polarity when switching from an input terminal to an output terminal, and the polarity of which is reversed when switching from the output terminal to the input terminal; a first capacitor that is provided in parallel with the flying capacitor, at the input terminal of the flying capacitor; and a second capacitor that is provided in parallel with the flying capacitor, at the output terminal of the flying capacitor. The flying capacitor is switched from the input terminal to the output terminal with a delay of a predetermined time after the switching from the output terminal to the input terminal, and the flying capacitor is switched from the output terminal to the input terminal with a delay of a predetermined time after the switching from the input terminal to the output terminal.
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