PURPOSE: To prevent deterioration in sound quality due to magnetic distortion of a core member by using a sample-and-hold circuit so as to suppress an unnecessary subcarrier included in a stereo demodulation output.

CONSTITUTION: A demodulator output is given to each input of n-set (where; n is ≥2 integer) of sample-and-hold circuits 13 through an LPF12. The sample- and-hold circuits 13 are connected in parallel, their outputs are inputted respectively to an adder 14 and an output terminal of the adders 14 produces a signal output. Further, each sample-and-hold circuit 13 consists of an analog gate Sn, a capacitor Cn, a resistor Rn and a buffer amplifier An. Further, each analog gate Sn is driven by n-phase of sample pulses S1∼Sn formed by a clock CK.