Sep 21, 2004 #21 P pullup Junior Member level 1 Joined Jul 19, 2004 Messages 15 Helped 0 Reputation 0 Reaction score 0 Trophy points 1,281 Activity points 164 the decoupling capacitor used for eliminating the interference from power supply.
Sep 21, 2004 #22 D dreamcard Member level 2 Joined Sep 11, 2004 Messages 49 Helped 0 Reputation 0 Reaction score 0 Trophy points 1,286 Activity points 309 stablising the power supply and filtring noise