| 摘要 |
PROBLEM TO BE SOLVED: To reduce adjustment work for a radio tuner system IC. SOLUTION: A radio tuner part 30 incorporating a register 54 for holding an operation parameter, and an electronic tuning control part 32 incorporating a nonvolatile memory 62 for storing data to be preset into the register 54, are constituted as a single tuner system IC 20. In such constitution, data for the radio tuner part 30 of the same package can be written to the nonvolatile memory 62 at a step for manufacturing the tuner system IC 20. The work of adjusting the nonvolatile memory 62 is performed in conjunction with a finished goods inspection performed after packaging of the tuner system IC 20, so that the relevant work can be reduced. High-speed semiconductor testers are generally used to perform such inspections, and the work of adjusting the nonvolatile memory 62 can also be performed at high speed. COPYRIGHT: (C)2009,JPO&INPIT
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