| Original document(34 pages) 中文版 |
A loop filter (30) comprises: a first capacitive element (31) provided between a current signal input end and a reference voltage; a switched capacitor circuit (32) provided between the input end and the first capacitive element (31); and a second capacitive element (33) provided in parallel to the first capacitive element (31) and the switched capacitor circuit (32). When a third capacitive element (321) is connected to the first capacitive element (31) side in the switched capacitor circuit (32), a fourth capacitive element (322) is connected to the second capacitive element (33) side. In the loop filter (30) of such an arrangement, capacitance of the second capacitive element (33) is set larger than those of the third and fourth capacitive elements (321, 322). |
Application Number
申请号 |
200480042570 |
Application Date
申请日 |
2004.11.17 |
| Title 名称 |
Switched capacitor filter and feedback system |
Publication Number
公开号 |
1943113 |
Publication Date
公开日 |
2007.04.04 |
| Approval Pub. Date |
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Granted Pub. Date |
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| International Classification 分类号 |
H03H19/00;H03L7/093 |
Applicant(s) Name
申请人 |
Matsushita Electric Ind Co., Ltd. |
| Address 地址 |
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| Inventor(s) Name 发明人 |
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| Attorney & Agent 代理人 |
jixiang gang |
| More information 更 多 信 息 |
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