发明名称 |
HIGH-FREQUENCY AMPLIFIER |
摘要 |
A high-frequency amplifier used for amplifying high-frequency signals in a TV tuner circuit or a satellite broadcast receiver. Emitter-grounded amplifiers (Q1, Q2) are d-c coupled in at least two stages to constitute an integrated circuit. An emitter resistor (R13) is connected between ground and the emitter of the emitter-grounded amplifier (Q2) of the latter stage, the emitter of the emitter-grounded amplifier (Q2) of the latter stage is connected through a bonding wire to an externally connecting terminal of the integrated circuit, and a filter circuit (11) is provided between this terminal and the external ground, the filter circuit (11) containing an inductance of the bonding wire so as to exhibit a small impedance for particular frequencies. |
申请公布号 |
WO8602214(A1) |
申请公布日期 |
1986.04.10 |
申请号 |
WO1985JP00541 |
申请日期 |
1985.09.30 |
申请人 |
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. |
发明人 |
USUI, AKIRA;YAMADA, TADASHI;KUBO, KAZUHIKO;NAGAI, HIROYUKI |
分类号 |
H03F1/08;H03F3/19;H03F3/191;(IPC1-7):H03F1/34;H03F3/189 |
主分类号 |
H03F1/08 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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