Hi Guys!
I need some advice/help.
I want to make direct output from console preamp module.
I want to use LL5402 for it.
http://www.lundahl.se/wp-content/uploads/datasheets/5402.pdf
Simplified circuit attached (sorry for quality).
It's only output stage. Marked on red is audio path for microphone preamp (it is also for stereo line "B"channel).
Yellow - reference point "BIAS 2".
Let say i want to connect transformer after phase switch and before channel selection switch.
Since the LL5402 needs very low source impedance how should i connect it to the high impedance output?
Output level at this point is -6dB.
What ratio i should use for better and simplified work - 2:1, 1:1, 1:2?
Should i connect in parallel with R96(R97) 22k other resistor to lower the impedance?
How this could affect on standard working with balancing output drivers - for stereo line as example?
I have stuck on that
I need some advice/help.
I want to make direct output from console preamp module.
I want to use LL5402 for it.
http://www.lundahl.se/wp-content/uploads/datasheets/5402.pdf
Simplified circuit attached (sorry for quality).
It's only output stage. Marked on red is audio path for microphone preamp (it is also for stereo line "B"channel).
Yellow - reference point "BIAS 2".
Let say i want to connect transformer after phase switch and before channel selection switch.
Since the LL5402 needs very low source impedance how should i connect it to the high impedance output?
Output level at this point is -6dB.
What ratio i should use for better and simplified work - 2:1, 1:1, 1:2?
Should i connect in parallel with R96(R97) 22k other resistor to lower the impedance?
How this could affect on standard working with balancing output drivers - for stereo line as example?
I have stuck on that