TEMPERATURE STABILIZING CIRCUIT

摘要

PROBLEM TO BE SOLVED: To reduce jitter level by stabilizing the junction temperature of a timing generator comprising a CMOS gate array. SOLUTION: A reference temperature detecting means 11 stores the highest value of junction temperature of an LSI 1 after converting into the number of reference pulses. A working temperature detecting means 12 stores the junction temperature of the LSI during operation after converting it into the number of working pulses. A current control means 13 compares the number of working pulses with the number of reference pulses and regulates the working current of a CMOS gate array T.G.10 such that they are matched each other thus controlling the junction temperature. According to the arrangement, jitter level of a timing generator comprising a CMOS gate array can be reduced significantly.