ELECTRIC CIRCUIT FOR AN ACCESS CONTROL AND IMMOBILIZER OF A VEHICLE AND METHOD FOR CALIBRATING AN ANTENNA DRIVER

摘要

The invention relates to an electric circuit for an access control and immobilizer of a vehicle and to a method for calibrating an antenna driver. An electric circuit for controlling the access and immobilizing a vehicle is provided. The electric circuit comprises a first antenna driver (12) for driving a first antenna (19) for emitting a signal (100) in the event of identification of an ID transmitter (3) for access control of a vehicle. A second antenna driver (24) is provided for driving a second antenna (21) for emitting a signal (104) in the event of identification of an ID transmitter (3) for the immobilizer of the vehicle. In addition, the electric circuit comprises a receiver device (14) for receiving a signal captured by an antenna (21) for the identification of an ID transmitter (3) for the immobilizer. The first antenna driver (12) and the receiver device (14) are commonly integrated into a semiconductor chip (1).