Circuit arrangement, switching module comprising said circuit arrangement and use of switching module

摘要

The invention relates to a circuit array with an antenna input (1), a signal input (2) and a signal output (3), and having a switch unit (4) which has a control line (5), with which the optional connecting of the antenna input (1) to the signal input (2) or the signal output (3) can be controlled, in which the antenna input (1) is connected to a first protective device (6) against electrostatic discharges and the control line (5) to a second protective device (7) against electrostatic discharges. As a result of the protective device in the control line, the ESD safety of the circuit array can be improved. The invention also relates to a circuit module and its use as a front-end module in a mobile telephone.