Semiconductor integrated circuit

摘要

A drain and a source of a field-effect transistor are connected to first and second signal terminals, respectively. A first control terminal is connected to a gate. A first resistor is interposed between the gate and the first control terminal. Capacitors are interposed between the source/drain and the first and second signal terminals, respectively. A control terminal is connected to at least one of the source/drain via a second resistor. High frequency signals supplied through the first signal terminal is sent through the field-effect transistor and outputted through the second signal terminal, and a quantity of the transmitted high frequency signals is controlled by a control voltage signal applied across the first and second control terminals. This structure provides a high frequency semiconductor integrated circuits which reduces a power consumption and an occupied area, increases a switchable power, suppresses output distortion, and simplifies a peripheral circuit.