| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a detector, sensor, and electronic device capable of achieving the detection processing of a signal from an oscillating gyro sensor at a low noise. <P>SOLUTION: The detector receives a detection signal from a physical quantity transducer driven by a drive signal, and includes a detecting circuit for detecting a desired signal from the detection signal. The detecting circuit comprises an amplification circuit for amplifying the detection signal from the physical quantity transducer, and a synchronous detection circuit 100 for performing synchronous detection of the signal amplified by the amplification circuit based on a synchronizing signal CLK. The synchronous detection circuit 100 performs the synchronous detection by a double balance mixer method based on the synchronizing signal CLK. <P>COPYRIGHT: (C)2008,JPO&INPIT |
