Simple MIDI splitter

[HeaD]

Hi guys, I want to build a simple MIDI splitter to connect two slave devices to my PC in order to synchronize them via MIDI clock:



Do you have a project to do that? ... and do that needs sort of power supplied buffer?

[Processaurus]

You know?  I bet you could just make a passive Y splitter cable.  Look at the beginning of the midi in on the diagram, the midi in port is just the LED side of an opto-isolator.  The driver circuit from the upstream device can probably drive two LEDs (one in each downstream device) in parallel without ill effect.

[Processaurus]

Doing the math, it looks as if running two devices' input LEDs will draw 6.5mA, which a cmos inverter can sink.

[HeaD]

I bet you could just make a passive Y splitter cable.

Would be amazing... are you sure that there is not an excessive loss of signal? Thanks.

[FiveseveN]

There shouldn't be a need for a MIDI splitter. MIDI devices almost always have a MIDI out/through port. But if they don't here are a couple of examples of pass-throughs: https://ccrma.stanford.edu/~gary/controllers/midi.html http://www.instructables.com/image/FXY7LDRF6S8S2BV/Creating-a-MIDI-thru.jpg

[Processaurus]

Oh yeah, or use the midi thru .  I bet the Y cable thing would work fine too though.