METHOD FOR COMPENSATING TEMPERATURE OF CRYSTAL OSCILLATOR

摘要

PURPOSE: A method for compensating temperature of a crystal oscillator is provided to reduce a pre-decoding logic area, an internal connection logic area, and a cell area as well as a silicon area by reducing a cell number of a capacitor array. CONSTITUTION: A memory address for storing capacitor array address information is calculated by subtracting a temperature offset code from a present temperature level(S14). Data of the memory address are read by using the remaining bits except for the lowest bit as the memory addresses when the lowest bit of the memory address is 0. An average value of the data of the memory address except for the lowest bit and the data of the memory address is increased as much as 1 when the lowest bit of the memory address is 1(S20). The data of the memory address and the average value data are transmitted to the first bank and the second bank by comparing the memory address with the temperature boundary code. A capacitor array is controlled by using the transmitted data.