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Old 29th June 2015, 07:35 PM   #1
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Default 3886 gain

working with 3386 power stage and for the specific application gain resistor R for XY PCB is 22K

Since my preamp is passive i would like more gain 47K sounds fine but i dont know if has any stability restrictions

Can anybody help ?
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Old 29th June 2015, 07:40 PM   #2
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i think it has a minimum gain for stability.
infinate gain is not possible naturally.

so i think you can got with a higher gain to account losses of a passive preamp.

there are 2 resistors setting the gain, not just one.
refer to the chip datasheet on information regarding how to calculate the desired gain setting resistor values.
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