| 摘要 |
PURPOSE:To suppress noise in an electronic controller for automobile comprising a microcomputor and an external memory. CONSTITUTION:A capacitor, exhibiting low impedance for high frequency components, is inserted between the ground and a bus line 11 connecting a microcomputor 1 and an external memory 10 which transmits high frequency rectangular wave signal and produces radio wave noise in an automobile radio unit. According to the invention, radio wave noise can be reduced by about 7dB. |
