| 摘要 |
The 2-input AFT voltage controller includes a timer microm for outputting a clock and PLL control data, and supplying first and second enable signals which are periodically different from each other and periodic switch control signal, a first tuner block periodically enabled in response to the first enable signal, which turns a receiving channel for watching and outputs a first AFT voltage, a second tuner block periodically enabled in response to the second enable signal, which tunes a receiving channel for recording and outputs a second AFT voltage, and a switch for alternately transmitting the first or second AFT voltage, which is output during the enable period of the first or second tuner block, to the AFT input terminal of the micom.
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