Feedback-free interconnection of the RF input stages of a tuner

摘要

The invention relates to a circuit arrangement for a tuner, in particular a television tuner, with an RF amplifier which is connected on the input side to the antenna input and is connected downstream of the preliminary RF circuits for at least two frequency bands. A splitting transformer is connected between the RF amplifier and the preliminary RF circuits whose mid-tap is connected to the output of the RF amplifier and whose end-taps are in each case connected to at least one preliminary circuit. <IMAGE>