ThomasT Posted July 3, 2003 Posted July 3, 2003 Hi!I assume the SFH6319 optocoupler from siemens will work as well as the 6N138. Am I right? It's a darlington type, too. The 6N138 is not avaiable as SO8 package...
ThomasT Posted July 3, 2003 Author Posted July 3, 2003 Additional question: For what is the 1N4148 on the input of the optocoupler?
pay_c Posted July 3, 2003 Posted July 3, 2003 Its a standard way to connect optocoupler that way. The diode is there to prevent damage to the IC if the MIDI is connected false... I think.I would reeeeaaally built it in.
ThomasT Posted July 3, 2003 Author Posted July 3, 2003 But when the MIDI is connected false the LED inside the optocoupler should prevent itself...doesn't it?For false connected MIDI the diode outside is a shortcut. I cannot see any sens at the moment. Please enlight me!
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