| 摘要 |
PURPOSE: Even when a digital channel and an analog channel are alternatively selected, an RF signal processing circuit is provided to simply control a digital/analog combined tuner through a communication line selection IC. CONSTITUTION: A digital/analog combined tuner(20) processes the input RF(Radio Frequency) signal of a digital mode or an analog mode. A first MICOM(Microcomputer)(22) processes the analog signal of the digital/analog combined tuner. A first memory(21) stores the processed data of the first micom. A second MICOM(23) processes the digital signal of the digital/analog combined tuner. A second memory(24) stores the processed data of the second MICOM. A communication line selection IC(Integrated Circuit)(30) outputs the output signal of the digital/analog combined tuner to A8, B8 terminal or A7, B7 terminal.
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