| 摘要 |
PROBLEM TO BE SOLVED: To sufficiently ensure the quality of a digital signal waveform and substantially reduce radiation noise by mounting a common mode choke coil on a board molded inside a connector, within an interface cable for transmitting a pair or two pairs or more of differential transmission signals. SOLUTION: A differential transmission cable 1 is composed of a cable 3 and connectors 2a, 2b arranged on the opposite ends. Radiation noise is suppressed by a function for selectively reducing only a noise component which is not cancelled each other by imbalance of differential transmission signals of a pair of digital signals and a function for preventing generation of noise caused by acting as an antenna of the cable itself, with a common mode choke coil 4 arranged inside the connector 2a. By mounting the coil 4 on a board, reliability in soldering of a cable and a lead wire with the coil 4 is ensured.
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