Hi, Let me just start by saying that I don't have much experience with electronics so I'm sorry if my post seems basic or illogical.
I'm trying to build a small unit that accepts a stereo audio input (via phono sockets) and also a mono audio input (wired connection from an xbox 360 controller). It should then split the mono input so that a copy of the signal can be combined with each channel of the stereo input. The result is then outputted to headphones via a 3.5mm jack socket.
My problem is that my stereo input also becomes mono as the signals merge where I have tried to split the mono input. I thought I would be able to use diodes to stop this happening but I wasn't aware that I'm dealing with a voltage far below the forward conduction threshold of the diode I was using (1N4148).
I have measured the voltage of the signals from my both my stereo and my mono sources:
Stereo source: 0.4mV
Mono source: 1.4mV
As I understand it, if I use a diode with a voltage this small it will just block both directions. Is it possible to get diodes that operate at much lower voltages? Or should I be attempting this a different way?
Any help would be greatly appreciated![Smile :) :)](data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)
I'm trying to build a small unit that accepts a stereo audio input (via phono sockets) and also a mono audio input (wired connection from an xbox 360 controller). It should then split the mono input so that a copy of the signal can be combined with each channel of the stereo input. The result is then outputted to headphones via a 3.5mm jack socket.
My problem is that my stereo input also becomes mono as the signals merge where I have tried to split the mono input. I thought I would be able to use diodes to stop this happening but I wasn't aware that I'm dealing with a voltage far below the forward conduction threshold of the diode I was using (1N4148).
I have measured the voltage of the signals from my both my stereo and my mono sources:
Stereo source: 0.4mV
Mono source: 1.4mV
As I understand it, if I use a diode with a voltage this small it will just block both directions. Is it possible to get diodes that operate at much lower voltages? Or should I be attempting this a different way?
Any help would be greatly appreciated