ELECTROSTATIC DISCHARGE (ESD) PROTECTION DEVICE

摘要

An electrostatic discharge (ESD) protection device that protects a power amplifier from ESD. The ESD protection device includes a filter circuit connected to an antenna line of a wireless communication apparatus and that passes an ESD component having a predetermined frequency or less, a detection circuit that converts an output of the filter circuit into an analog DC output, a level determination circuit that detects that the analog DC output of the detection circuit is a predetermined threshold value or more, and a control interrupt circuit that controls a state of the power amplifier in accordance with an output of the level determination circuit.