| 摘要 |
An oscillator 10 includes temperature compensation circuits 30 and 40, a frequency adjusting circuit 50, and an initial deviation correcting circuit 60. Switches SW 1 to 4 are controlled based on control data DC stored in a memory 90 so that a temperature compensation voltage V1, a temperature compensation voltage V2, a frequency adjusting voltage V3, and an initial deviation correcting voltage V4, output from the above circuits, are selectively added, supplying a sum to a voltage-controlled oscillation circuit 20 as a control voltage VA.
|
