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JP2007235938A Single-ended input to differential-ended output low noise amplifier 审中-公开
标题翻译：单端输入差分输出低噪声放大器
公开(公告)号：JP2007235938A
公开(公告)日：2007-09-13
申请号：JP2007017554
申请日：2007-01-29
申请人： Princeton Technology Corp , 普誠科技股▲ふん▼有限公司
发明人： KAO NIEN-AN , CHANG KWO-WEI
IPC分类号： H03F3/45 , H03F3/195
CPC分类号： H03F3/45183 , H03F1/223 , H03F3/19 , H03F2200/108 , H03F2200/243 , H03F2200/294 , H03F2200/451 , H03F2200/492 , H03F2203/45166 , H03F2203/45332 , H03F2203/45631
摘要： PROBLEM TO BE SOLVED: To provide a single-ended input/differential-ended output amplifier including an amplifier and a single-ended input/differential-ended output conversion circuit.
SOLUTION: The present invention includes a single-ended input/differential-ended output conversion circuit, for converting an amplified signal to a differential signal pair, comprising a first transistor having a first gate coupled to a single-ended amplified signal of an amplifier, a first first terminal coupled to a second output 409 and a first second terminal coupled to a first node B; a second capacitor 406 having a second gate, a second first terminal coupled to a third output 409' and a second second terminal coupled to the second node B; a second capacitor 406 coupled between the second output and the second gate; a first resistor 403 coupled between the second output and a voltage source; a second resistor 404 coupled between the third output and the voltage source; and a current source 405 coupled between a first node and a ground.
COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供包括放大器和单端输入/差分端输出转换电路的单端输入/差分端输出放大器。解决方案：本发明包括用于将放大信号转换成差分信号对的单端输入/差分端输出转换电路，包括第一晶体管，其具有耦合到单端放大信号的第一栅极放大器，耦合到第二输出409的第一第一端子和耦合到第一节点B的第一第二端子; 具有第二栅极的第二电容器406，耦合到第三输出端409'的第二第一端子和耦合到第二节点B的第二端子; 耦合在第二输出端和第二栅极之间的第二电容器406; 耦合在第二输出端和电压源之间的第一电阻器403; 耦合在第三输出端和电压源之间的第二电阻器404; 以及耦合在第一节点和地面之间的电流源405。版权所有（C）2007，JPO＆INPIT

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