| 摘要 |
PROBLEM TO BE SOLVED: To obtain a high frequency signal receiver for receiving a terrestrial wave digital broadcast, and the like, in which linearity is imparted to the relation between the input signal level and the detected output voltage for gain control. SOLUTION: A gain distribution control circuit 42 is provided between the output of an AGC detecting circuit 38 and the control terminals of an RF-AGC circuit 19 and an IF-AGC circuit 28 and linearity is imparted to the relation between the signal level at the input terminal 17 and the output control voltage of the AGC detecting circuit 38. Consequently, linearity can be imparted to the relation between the signal level at the input terminal 17 and the output control voltage of the AGC detecting circuit 38.
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