| 摘要 |
PURPOSE: A circuit for preventing interference and bit generation of a digital tuner including a demodulation IC is provided to eliminate interference and bit generation in a tuner according to the second oscillation frequency of a tuner demodulator and the nth harmonic of the second crystal oscillator. CONSTITUTION: A circuit for preventing interference and bit generation of a digital tuner(110) grounds the first OSC(113) of the tuner and the second OSC(123) of a tuner demodulator(120) to common ground, and connects an inductor(130) between the second OSC of the tuner demodulator and the ground to eliminate interference and bit generation in the tuner according to the second oscillation frequency of the tuner demodulator and the nth harmonic of the second crystal oscillator(121).
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