COMPLEX TUNER

A complex tuner is provided to install a booster, a mixer oscillator-phase lock loop integrated circuit, an analog modulation part, and a digital modulation part in a chip board for simplifying the structure of the tuner and preventing unstable tuning resulting from external noise. A complex tuner comprises a chip board(20), a booster(21), an MOPLL(Mixer Oscillator-Phase Lock Loop) integrated circuit(22), an analog modulation part(23), and a digital modulation part(24). The booster turns on/off, amplifies, outputs, passes, and outputs a high frequency signal inputted to the chip board by a control signal. The MOPLL integrated circuit selects a channel of the high frequency signal inputted from the booster and converts a broadcasting signal of the selected channel to a middle frequency. The analog modulation part modulates the middle frequency into the original broadcasting signal and outputting the original broadcasting signal as an analog image and a sound signal. The digital modulation part modulates the middle frequency into the original broadcasting signal and outputting the original broadcasting signal as a digital image and a sound signal.