发明公开
- 专利标题： Monolithic integrated circuit device including AC negative feedback type high frequency amplifier circuit
- 专利标题（中）： 包含交流负反馈型高频放大器电路的单片集成电路装置
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申请号： EP83304191申请日： 1983-07-19
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公开(公告)号： EP0101201A3公开(公告)日： 1986-08-27
- 发明人: Akazawa, Yukio , Ishihara, Noboru , Ohara, Mamoru
- 申请人： NIPPON TELEGRAPH AND TELEPHONE CORPORATION
- 专利权人： NIPPON TELEGRAPH AND TELEPHONE CORPORATION
- 当前专利权人： NIPPON TELEGRAPH AND TELEPHONE CORPORATION
- 优先权： JP12536682 19820719; JP13719582 19820809; JP14198482 19820816
- 主分类号： H03F01/48
- IPC分类号： H03F01/48 ; H03F03/195 ; H03F01/08
摘要：
An AC negative feedback circuit (14) includes a semiconductor impedance element (41) connected to an external terminal (11d) on the substrate on which the whole device is formed, and variable control means (20) for adjusting the amount of AC feedback of the high frequency amplifier circuit. As the semiconductor impedance element is used the junction capacitance of a diode (41) under negative bias, diffusion capacitance between the base and emitter electrodes or between the base and collector electrodes of a transistor (51) or a differentiated resistance of a diode (62).
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