Patent ID: 11863185
Assignee: LX SEMICON CO., LTD.
Field: Basic communication processes (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. An oscillator circuit, comprising:
a temperature sensor to sense a temperature inside a semiconductor integrated circuit device and to output a temperature sensing value;
an error correction circuit to store a first error correction value for correcting a frequency error of a clock signal when the temperature inside the semiconductor integrated circuit device is a first temperature and a second error correction value for correcting the frequency error of the clock signal when the temperature inside the semiconductor integrated circuit device is a second temperature higher than the first temperature and to generate a third error correction value corresponding to the temperature sensing value by using the first error correction value, the second error correction value, and the temperature sensing value; and
an oscillator to correct the frequency error of the clock signal according to the temperature inside the semiconductor integrated circuit device by setting at least one of a bias, a resistance value, and a capacitor value according to the third error correction value and to output the clock signal, wherein
the third error correction value includes a first control code for a coarse adjustment of a frequency of the clock signal and a second control code for a fine adjustment of the frequency of the clock signal.