I have a couple of STK4044 modules. I am about to attempt firing them up. The PCB has labels -VDC, +VDC, Gnd, Gnd, Gnd, +sig, +sig, HP, HP.
I am assuming, that sig+ is the input for each respective channel and HP is the output power from the module. Are all 3 grounds shared in a chip amp like this? Can I feed these modules with a preamp? I have a transformer, rectifier, 6800uF 56Volt capacitors and 500ohm resistors to power these up. Is there anything else I need?
The picture is not very large but may be readable.
I am assuming, that sig+ is the input for each respective channel and HP is the output power from the module. Are all 3 grounds shared in a chip amp like this? Can I feed these modules with a preamp? I have a transformer, rectifier, 6800uF 56Volt capacitors and 500ohm resistors to power these up. Is there anything else I need?
The picture is not very large but may be readable.