Hi, I am trying to design a 'true diversity' RF receiver audio link.
I have 2 RF modules that output line level audio.
The modules have a Vdc RSSI indicator output. 0 - 2v
I would like to Pan the audio from one module to the other by using a comparator to decide the higher RSSI signal ( with some hysteresis (( adjustable 5ms - 500ms? )
and have the audio output panned rather than switched from the audio source A&B in approx 5ms - 500ms adjustable by variable resistor(s).
Here's where i am at so far !!
1, I have a rough idea that the +-1V audio outputs have to be converted to 0v -1.5v swing with OpAmps so it can pass through the pan circuit?
2, I should use CMOS pair (nfet and pfet) with some RC to control speed of the pan from one audio source to the other and back ?
here is a circuit diagram I have slashed together, but I think its still way off from working !!!
any help / ideas would be really welcome !!!
thanks,
Ben
I have 2 RF modules that output line level audio.
The modules have a Vdc RSSI indicator output. 0 - 2v
I would like to Pan the audio from one module to the other by using a comparator to decide the higher RSSI signal ( with some hysteresis (( adjustable 5ms - 500ms? )
and have the audio output panned rather than switched from the audio source A&B in approx 5ms - 500ms adjustable by variable resistor(s).
Here's where i am at so far !!
1, I have a rough idea that the +-1V audio outputs have to be converted to 0v -1.5v swing with OpAmps so it can pass through the pan circuit?
2, I should use CMOS pair (nfet and pfet) with some RC to control speed of the pan from one audio source to the other and back ?
here is a circuit diagram I have slashed together, but I think its still way off from working !!!
any help / ideas would be really welcome !!!
thanks,
Ben
Attachments
Last edited: