| 摘要 |
PURPOSE:To make it possible to carry out temp. compensation without changing an oscillating condition to a large extent, by combining a variable frequency dividing circuit and the change in the oscillating condition of a crystal oscillating circuit to carry out temp. compensation. CONSTITUTION:The output of a temp. detecting circuit 6 is inputted in a frequency dividing ratio control circuit 7 and a load resistor control circuit 8 and the frequency dividing ratio of a variable frequency dividing circuit 2 and the load resistor of an oscillating circuit 1 to compensate frequency temp. characteristics. |
