| 摘要 |
A mobile terminal for compensating a frequency error according to temperature is provided to solve a problem about high cost according to purchasing a mobile terminal because the mobile terminal includes a high-priced TCXO(Temperature Compensated Crystal Oscillator) to compensate an input signal according to temperature. First and second DCXOs(Digitally Controlled Crystal Oscillators)(121,131) include a crystal oscillator to generate a system clock. A temperature sensor(100) detects an external temperature. A frequency compensation processing unit(110) detects a frequency compensation value for compensating a frequency error of the system clock generated from the crystal oscillator of the first and second DCXOs(121,131) based on the external temperature detected by the temperature sensor(100), transmits a control signal for compensating the frequency error of the system clock to the first and second DCXOs(121,131) to compensate the frequency of the system clock.
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