INTERFACE CIRCUIT FOR CONNECTING TO AN OUTPUT OF A FREQUENCY CONVERTER
The invention relates to an interface circuit for connecting to an output of a frequency converter. Said circuit contains at least two current paths (10, 20), which are intercoupled in a parallel connection and respectively comprise at least one cascode stage (12, 13, 22, 23) for signal processing. Said circuit permits direct current offsets of the frequency converter to be compensated, in addition to a switchable amplification ratio for signals with a wide dynamic range and provides a large signal-to-noise margin. The inventive interface circuit is preferably for use in mobile radio telephone receivers.