Function generator

摘要

A function generator adapted to output a control signal related to a temperature characteristic of oscillation frequency of a quartz oscillator, comprising a analog signal generating circuit for outputting a predetermined voltage substantially independent of the ambient temperature, a storage means for storing control information corresponding to three continuous temperature regions, a second analog signal generating circuit receiving signals from said first analog signal generating circuit and outputting control signals corresponding to the temperature regions, and a control circuit for receiving the control signals and outputting a control signal a function of a temperature, wherein a MAX and a MIN circuit are used in sequence for determining the control signal.