| 摘要 |
The purpose of the present invention is to reduce the circuit area of a variable capacity circuit. A variable capacity part (12-1) includes a plurality of variable capacity elements (C1a, C1b) that is connected to a signal line (11) and has a first capacity value or a second capacity value larger than the first capacity value in accordance with a drive voltage, and a fixed capacity element (FC1) connected in series with the plurality of variable capacity elements (C1a, C1b). A variable capacity part (12-2) includes a variable capacity element (C2a) that is connected to a signal line (11) and has a first capacity value or a second capacity value in accordance with a drive voltage, and a fixed capacity element (FC2) connected in series with the variable capacity element (C2a). |
