I'm going to use this mixer w/o internal amp. Is there any way don't supply the power to internal amp. (to reduce the quiescent current)? What is the difference between pin no. 1 and 12 ? Are these pins supply different internal circuits?
These pins are for different internal power supplies but we don't have the information which one is for internal amps only. And turning off the internal amps may result the mixer not working correctly since this is an active gilbert cell mixer. We don't recommend to do that. You could play and try to see if any of the VP pin is not needed to power up in your application.
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