Electrical circuit for surface mounting component, has signal paths for data transmissions in respective frequency ranges, and interface circuit arranged in one path to suppress common mode signals outside transmission range of signal paths

The electrical circuit has two signal paths (SP1, SP2) provided for data transmissions in respective frequency ranges. The signal path (SP1) has differential partial paths, and an interface circuit (M1) arranged in the signal path (SP1) suppresses common mode signals outside a transmission range of the signal paths. An antenna circuit (FEM) and a transceiver circuit (TR) are arranged in the two signal paths. The interface circuit is arranged between a receiving output of the antenna circuit and a receiving input of the transceiver circuit. Es wird eine elektrische Schaltung mit einem ersten Signalpfad angegeben, der differentielle Teilpfade aufweist. Im ersten Signalpfad ist eine Anpassschaltung angeordnet, die Gleichtaktsignale in einem Sperrbereich dieses Signalpfads unterdrückt, aber differentielle Signalanteile im Wesentlichen nicht beeinflusst.