| 摘要 |
PROBLEM TO BE SOLVED: To make a reference oscillation signal at a terminal for connection to an external oscillator hardly to be superimposed by audio and video signals outputted from an intermediate frequency circuit section. SOLUTION: A television tuner unit includes: a tuner section 6; the intermediate frequency circuit section 7 for outputting audio and video signals; and a metallic frame 1 in which the tuner section 6 and the intermediate frequency circuit section 7 are configured, the tuner section 6 is provided with: a PLL circuit 6f which receives a digital signal for channel selection; and a reference oscillation circuit 6g for supply of the reference oscillation circuit. A plurality of terminals 4g, 4h to receive at least the digital signal, a terminal 4f for connecting the oscillator placed externally to the reference oscillation circuit 6g, terminals 4n for output of the video signal, and a terminal 4j for output of the audio signal are fitted to one side 1a of the metallic frame 1 in a row. Digital signal input terminals 4g, 4h are placed between the terminal 4f for connection to the oscillator and the terminal 4j for audio signal output, and the terminals 4n for base station output are provided. COPYRIGHT: (C)2003,JPO
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