Self-adjusting frequency demodulation circuit comprising a frequency demodulator (13) which is designed as an integrated circuit, the adjustment being effected with the aid of a calibration signal source (7) of one single frequency and a measuring circuit (113, 35, 101) coupled to an output (113) of the frequency demodulator (13) by controlling the output signal amplitude of the frequency demodulation circuit with a multiplier (21) which is controllable by the measuring circuit and forms part of a tuning correction circuit which optionally may further include a level shifting circuit (57). The frequency demodulation circuit is particularly suitable for use in a SECAM color television receiver, only one frequency demodulator then being required for demodulating both the two color difference signals and the identification signal.