Normally i use MMBT222A. So even if use that part does it make any changes?.
Note that am using a single tda ic for driving two speakers with 24-27v toroidal transformer. Am building a active powered speaker for studio monitor with full wood and 2xcomponent speaker(both speaker with 4 component , namely low,mid,vocal,high). Am using single ended input, L+R+GND. Also am using a dspic microcontroller for display and control.
So all controls are made digitalaly. Am using micochip 100K digital pot(mcp series). The gain setting pins need to be controlled by microcontroller. So what i can do for that. If i just pull it up or down using a mmbt222a transistor, will there be any problems?. Same as for gain pins. Not that my digital level of microcontroller is 5v. So please guide me as per my requirements.
