Patent ID: 7050774

Claim:
An AGC circuit of an FM receiver, comprising: a radio-frequency circuit to which an FM broadcast signal is input; a mixing circuit provided immediately downstream of the radio-frequency circuit, for converting an FM broadcast signal that is output from the radio-frequency circuit into an intermediate frequency signal; and a bandpass filter provided downstream of the mixing circuit, wherein: a first AGC circuit provided downstream of a final stage of the radio-frequency circuit and supplying a first AGC voltage, and a second AGC circuit provided at an output side of the bandpass filter immediately downstream of an intermediate frequency amplification circuit and coupled in parallel to the first AGC circuit and supplying a second AGC voltage, and a gain of the radio-frequency circuit is controlled on the basis of the first and second AGC voltages; the bandpass filter has a pass-band width that is approximately two times greater than a frequency interval of FM broadcast signals; and the second AGC voltage is set higher than the first AGC voltage in a pass-band of the bandpass filter.