HIGH-FREQUENCY SWITCH CIRCUIT

摘要

A high frequency switch circuit according to the present invention includes a control-voltage-generating circuit (100). The control-voltage-generating circuit (100) includes a depletion type field-effect transistor (101), an external-control-signal-input terminal (111), an internal-control-voltage-output terminal (112), and a power-receiving terminal (113) of the control-voltage-generating circuit. The field-effect transistor (101) has a grounded gate, a source connected to the external-control-signal-input terminal (111), and a drain connected to the power-receiving terminal (113). The internal-control-voltage-output terminal (112) is connected to an electrical connection path between the drain of the field-effect transistor (101) and the power-receiving terminal (113).