Im building and sound synth with an Arduino, for that task I chossed a well known PSG. The thing is this chip needs 12Vs, and the arduino of has a max (regulated) voltage of 5.
So after reading specs on this IC, plus many feedbacks of people trying to achieve the exactly same as me, most (or all of them) recommended me to NOT use a Wallwart, since most them could short the PSG if the voltage becaomes too high. So I have plenty of questions, most of them probably will sound silly, still your answers can help me to clear my problem.
I've read on some electronics-forums that is possible to build some sort of 5v to 12v converter, how could I achieve this? makes sense to fully power my project or powering the arduinos with 12v can make it unstable?
Another option I saw is to build a regulated-power-supply. (There is even some sort of guide which can help you to convert a ugly wallwart into a regulated power supply), any recommendations thoughts on this approach?
I have this ugly wall-wart, which I tested with my multimeter. The voltage never goes more than 12V (11.8V), how can I know if this wallwart its a switched mode (SMPSs) or not? how I can know (testing...)? I read somewhere that switchedmode wallwarts are not as bad as regular wallwarts,
- any other recommendations alternatives?
According to the 6581 specs it needs:
Absolute Maximum Ratings: Supply Voltage Vdd -0.3 VDC to +17VDC Supply Voltage Vcc -0.3 VDC to +7VDC
whatever that means :cold_sweat:
cheers and thank yaa!!!